[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Changed in: ubuntu-z-systems
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Released
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
This bug was fixed in the package linux - 5.4.0-42.46
---
linux (5.4.0-42.46) focal; urgency=medium
* focal/linux: 5.4.0-42.46 -proposed tracker (LP: #1887069)
* linux 4.15.0-109-generic network DoS regression vs -108 (LP: #1886668)
- SAUCE: Revert "netprio_cgroup: Fix unlimited memory leak of v2 cgroups"
linux (5.4.0-41.45) focal; urgency=medium
* focal/linux: 5.4.0-41.45 -proposed tracker (LP: #1885855)
* Packaging resync (LP: #1786013)
- update dkms package versions
* CVE-2019-19642
- kernel/relay.c: handle alloc_percpu returning NULL in relay_open
* CVE-2019-16089
- SAUCE: nbd_genl_status: null check for nla_nest_start
* CVE-2020-11935
- aufs: do not call i_readcount_inc()
* ip_defrag.sh in net from ubuntu_kernel_selftests failed with 5.0 / 5.3 / 5.4
kernel (LP: #1826848)
- selftests: net: ip_defrag: ignore EPERM
* Update lockdown patches (LP: #1884159)
- SAUCE: acpi: disallow loading configfs acpi tables when locked down
* seccomp_bpf fails on powerpc (LP: #1885757)
- SAUCE: selftests/seccomp: fix ptrace tests on powerpc
* Introduce the new NVIDIA 418-server and 440-server series, and update the
current NVIDIA drivers (LP: #1881137)
- [packaging] add signed modules for the 418-server and the 440-server
flavours
-- Khalid Elmously Thu, 09 Jul 2020
19:50:26 -0400
** Changed in: linux (Ubuntu Groovy)
Status: In Progress => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-16089
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-19642
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-11935
--
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Released
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
This bug was fixed in the package linux - 5.4.0-37.41
---
linux (5.4.0-37.41) focal; urgency=medium
* CVE-2020-0543
- SAUCE: x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2
- SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
- SAUCE: x86/cpu: Add 'table' argument to cpu_matches()
- SAUCE: x86/speculation: Add Special Register Buffer Data Sampling (SRBDS)
mitigation
- SAUCE: x86/speculation: Add SRBDS vulnerability and mitigation
documentation
- SAUCE: x86/speculation: Add Ivy Bridge to affected list
-- Marcelo Henrique Cerri Wed, 03 Jun
2020 11:24:23 -0300
** Changed in: linux (Ubuntu Focal)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-0543
--
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
Fix Released
Status in linux source package in Groovy:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Tags removed: verification-needed-focal
** Tags added: verification-done-focal
--
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Groovy:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
focal' to 'verification-done-focal'. If the problem still exists, change
the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: verification-needed-focal
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Groovy:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: linux (Ubuntu Groovy)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: ubuntu-z-systems
Status: In Progress => Fix Committed
--
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Groovy:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Changed in: linux (Ubuntu Focal)
Status: In Progress => Fix Committed
--
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Groovy:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: Fix Committed
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Groovy)
Status: Fix Committed => In Progress
** Changed in: linux (Ubuntu Focal)
Status: New => In Progress
** Changed in: ubuntu-z-systems
Status: Fix Committed => In Progress
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
In Progress
Status in linux source package in Groovy:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Committed
** Changed in: ubuntu-z-systems
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
Fix Committed
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
Updated: https://lists.ubuntu.com/archives/kernel-
team/2020-May/thread.html#109615
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
Kernel SRU request resubmitted as v2:
https://lists.ubuntu.com/archives/kernel-team/2020-May/thread.html#109579
Status still 'In Progress'.
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Description changed:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only allocated
for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
- *
-
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+attachment/5357850/+files/0001-s390
- -pci-Fix-zpci_alloc_domain-over-allocation-for-focal.patch
+ * https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
+ zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for kernel
message 'Adding PCI function ... failed'
-
- [Regression Potential]
+ [Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream reviewed,
too
* the modifications span just two files and both are s390x arch specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed for
getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
--
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
* https://launchpadlibrarian.net/478235080/0001-s390-pci-Fix-
zpci_alloc_domain-over-allocation.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
With the patch applied the compile complains with:
...
CC mm/vmalloc.o
^[[01m^[[K/home/ubuntu/focal-lp1874057/arch/s390/pci/pci.c:^[[m^[[K In function
â^[[01m^[[Kzpci_alloc_domain^[[m^[[Kâ:
^[[01m^[[K/home/ubuntu/focal-lp1874057/arch/s390/pci/pci.c:668:4:^[[m^[[K
^[[01;31m^[[Kerror: ^[[m^[[Kimplicit declaration of function
â^[[01m^[[Kupdate_uid_checking^[[m^[[Kâ
[^[[01;31m^[[K-Werror=implicit-function-declaration^[[m^[[K]
668 |^[[01;31m^[[Kupdate_uid_checking^[[m^[[K(false);
|^[[01;31m^[[K^~~^[[m^[[K
CC mm/process_vm_access.o
CC security/apparmor/lib.o
cc1: some warnings being treated as errors
make[4]: *** [/home/ubuntu/focal-lp1874057/scripts/Makefile.build:273:
arch/s390/pci/pci.o] Error 1
make[3]: *** [/home/ubuntu/focal-lp1874057/scripts/Makefile.build:522:
arch/s390/pci] Error 2
make[2]: *** [/home/ubuntu/focal-lp1874057/Makefile:1719: arch/s390] Error 2
I double-checked with compiling the focal master-next tree w/o the
patch, which works fine.
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
*
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+attachment/5357850/+files/0001-s390
-pci-Fix-zpci_alloc_domain-over-allocation-for-focal.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: ubuntu-z-systems
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
*
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+attachment/5357850/+files/0001-s390
-pci-Fix-zpci_alloc_domain-over-allocation-for-focal.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
Kernel SRU request submitted:
https://lists.ubuntu.com/archives/kernel-team/2020-April/thread.html#109402
Changing status to 'In Progress'.
** Description changed:
+ SRU Justification:
+ ==
+
+ [Impact]
+
+ * PCI Functions with UIDs >128 are currently not accounted correctly in
+ the s390x/pci (zPCI) code.
+
+ * Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
+ are created.
+
+ * This can lead to issues with data structures which were only allocated
+ for CONFIG_PCI_NR_FUNCTIONS.
+
+ [Fix]
+
+ *
+
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+attachment/5357850/+files/0001-s390
+ -pci-Fix-zpci_alloc_domain-over-allocation-for-focal.patch
+
+ [Test Case]
+
+ * Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
+ (reasonablly low) number.
+
+ * And check if more PCI functions can be created than specified by
+ CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for kernel
+ message 'Adding PCI function ... failed'
+
+
+ [Regression Potential]
+
+ * There is regression potential can be considered as low, since:
+
+ * the zPCI cards are less wide spread than for example ccw adapters on
+ s390x
+
+ * the fix got already upstream accepted in 5.7, hence upstream reviewed,
+ too
+
+ * the modifications span just two files and both are s390x arch specific
+
+ [Other Info]
+
+ * the above patch-file is based on commit
+ 969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
+ zpci_alloc_domain() over allocation"), but this backport was needed for
+ getting this applied to focal master-next
+
+ * and this patch got upstream accepted with kernel v5.7-rc1, hence on
+ the long term it should be in 'gorilla'
+
+ __
+
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
--
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Triaged
Status in linux package in Ubuntu:
New
Bug description:
SRU Justification:
==
[Impact]
* PCI Functions with UIDs >128 are currently not accounted correctly
in the s390x/pci (zPCI) code.
* Furthermore, the code allows that more than CONFIG_PCI_NR_FUNCTIONS
are created.
* This can lead to issues with data structures which were only
allocated for CONFIG_PCI_NR_FUNCTIONS.
[Fix]
*
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+attachment/5357850/+files/0001-s390
-pci-Fix-zpci_alloc_domain-over-allocation-for-focal.patch
[Test Case]
* Set the kernel parameter CONFIG_PCI_NR_FUNCTIONS to a specific
(reasonablly low) number.
* And check if more PCI functions can be created than specified by
CONFIG_PCI_NR_FUNCTIONS (e.g. using a RoCE adapter) and watch for
kernel message 'Adding PCI function ... failed'
[Regression Potential]
* There is regression potential can be considered as low, since:
* the zPCI cards are less wide spread than for example ccw adapters on
s390x
* the fix got already upstream accepted in 5.7, hence upstream
reviewed, too
* the modifications span just two files and both are s390x arch
specific
[Other Info]
* the above patch-file is based on commit
969ae01bab2fe938b4c8324836038b5ac1c78fac ("s390/pci: Fix
zpci_alloc_domain() over allocation"), but this backport was needed
for getting this applied to focal master-next
* and this patch got upstream accepted with kernel v5.7-rc1, hence on
the long term it should be in 'gorilla'
__
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Changed in: ubuntu-z-systems
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
Triaged
Status in linux package in Ubuntu:
New
Bug description:
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
Okay, that backport applies flawlessly - thanks!
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https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
New
Status in linux package in Ubuntu:
New
Bug description:
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
The mentioned commit from 5.7 does not simply apply to focal master-
next:
cherry-pick says:
Auto-merging arch/s390/pci/pci.c
CONFLICT (content): Merge conflict in arch/s390/pci/pci.c
Auto-merging arch/s390/include/asm/pci.h
warning: inexact rename detection was skipped due to too many files.
warning: you may want to set your merge.renamelimit variable to at least 2342
and retry the command.
error: could not apply 969ae01bab2f... s390/pci: Fix zpci_alloc_domain() over
allocation
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add ' or 'git rm '
hint: and commit the result with 'git commit'
with status:
On branch master-next
Your branch is ahead of 'origin/master-next' by 2 commits.
(use "git push" to publish your local commits)
You are currently cherry-picking commit 969ae01bab2f.
(fix conflicts and run "git cherry-pick --continue")
(use "git cherry-pick --skip" to skip this patch)
(use "git cherry-pick --abort" to cancel the cherry-pick operation)
Changes to be committed:
modified: arch/s390/include/asm/pci.h
Unmerged paths:
(use "git add ..." to mark resolution)
both modified: arch/s390/pci/pci.c
and the git diff is:
diff --cc arch/s390/pci/pci.c
index 6105b1b6e49b,2b90a90aa81d..
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@@ -39,11 -40,12 +39,12 @@@
static LIST_HEAD(zpci_list);
static DEFINE_SPINLOCK(zpci_list_lock);
- static DECLARE_BITMAP(zpci_domain, ZPCI_NR_DEVICES);
+ static DECLARE_BITMAP(zpci_domain, ZPCI_DOMAIN_BITMAP_SIZE);
static DEFINE_SPINLOCK(zpci_domain_lock);
+ static unsigned int zpci_num_domains_allocated;
#define ZPCI_IOMAP_ENTRIES\
- min(((unsigned long) ZPCI_NR_DEVICES * PCI_STD_NUM_BARS / 2), \
+ min(((unsigned long) ZPCI_NR_DEVICES * PCI_BAR_COUNT / 2), \
ZPCI_IOMAP_MAX_ENTRIES)
static DEFINE_SPINLOCK(zpci_iomap_lock);
@@@ -606,59 -608,22 +607,63 @@@ void pcibios_disable_device(struct pci_
zpci_debug_exit_device(zdev);
}
+#ifdef CONFIG_HIBERNATE_CALLBACKS
+static int zpci_restore(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct zpci_dev *zdev = to_zpci(pdev);
+ int ret = 0;
+
+ if (zdev->state != ZPCI_FN_STATE_ONLINE)
+ goto out;
+
+ ret = clp_enable_fh(zdev, ZPCI_NR_DMA_SPACES);
+ if (ret)
+ goto out;
+
+ zpci_map_resources(pdev);
+ zpci_register_ioat(zdev, 0, zdev->start_dma, zdev->end_dma,
+ (u64) zdev->dma_table);
+
+out:
+ return ret;
+}
+
+static int zpci_freeze(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct zpci_dev *zdev = to_zpci(pdev);
+
+ if (zdev->state != ZPCI_FN_STATE_ONLINE)
+ return 0;
+
+ zpci_unregister_ioat(zdev, 0);
+ zpci_unmap_resources(pdev);
+ return clp_disable_fh(zdev);
+}
+
+struct dev_pm_ops pcibios_pm_ops = {
+ .thaw_noirq = zpci_restore,
+ .freeze_noirq = zpci_freeze,
+ .restore_noirq = zpci_restore,
+ .poweroff_noirq = zpci_freeze,
+};
+#endif /* CONFIG_HIBERNATE_CALLBACKS */
+
static int zpci_alloc_domain(struct zpci_dev *zdev)
{
+ spin_lock(_domain_lock);
+ if (zpci_num_domains_allocated > (ZPCI_NR_DEVICES - 1)) {
+ spin_unlock(_domain_lock);
+ pr_err("Adding PCI function %08x failed because the configured
limit of %d is reached\n",
+ zdev->fid, ZPCI_NR_DEVICES);
+ return -ENOSPC;
+ }
+
if (zpci_unique_uid) {
zdev->domain = (u16) zdev->uid;
- if (zdev->domain >= ZPCI_NR_DEVICES)
- return 0;
-
- spin_lock(_domain_lock);
if (test_bit(zdev->domain, zpci_domain)) {
spin_unlock(_domain_lock);
- pr_err("Adding PCI function %08x failed because domain
%04x is already assigned\n",
- zdev->fid, zdev->domain);
return -EEXIST;
}
set_bit(zdev->domain, zpci_domain);
@@@ -665,14 -631,14 +671,21 @@@
spin_unlock(_domain_lock);
return 0;
}
-
- spin_lock(_domain_lock);
+ /*
+* We can always auto allocate domains below ZPCI_NR_DEVICES.
+* There is either a free domain or we have reached the maximum in
+* which case we would have bailed earlier.
+*/
zdev->domain = find_first_zero_bit(zpci_domain, ZPCI_NR_DEVICES);
++<<< HEAD
+ if (zdev->domain == ZPCI_NR_DEVICES) {
+ spin_unlock(_domain_lock);
+ return -ENOSPC;
+ }
++===
++>>> 969ae01bab2f... s390/pci: Fix zpci_alloc_domain() over allocation
set_bit(zdev->domain, zpci_domain);
+ zpci_num_domains_allocated++;
[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
** Changed in: ubuntu-z-systems
Importance: Undecided => Medium
** Changed in: ubuntu-z-systems
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: linux (Ubuntu)
Assignee: Skipper Bug Screeners (skipper-screen-team) => (unassigned)
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in Ubuntu on IBM z Systems:
New
Status in linux package in Ubuntu:
New
Bug description:
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
Patch just landed on 5.7:
git tag --contains 969ae01bab2f | grep ^v
v5.7-rc1
v5.7-rc2
** Description changed:
- Description will follow
+ PCI Functions with UIDs >128 are currently not accounted correctly in
+ the s390x/pci code. Furthermore, the code allows that more than
+ CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
+ structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
+
+ This has been fixed in the following upstream commit:
+
+ 969ae01bab2fe938b4c8324836038b5ac1c78fac
+ ("s390/pci: Fix zpci_alloc_domain() over allocation")
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1874057
Title:
[UBUNTU 20.04] s390x/pci: do not allow to create more pci functions
than configured via CONFIG_PCI_NR_FUNCTIONS
Status in linux package in Ubuntu:
New
Bug description:
PCI Functions with UIDs >128 are currently not accounted correctly in
the s390x/pci code. Furthermore, the code allows that more than
CONFIG_PCI_NR_FUNCTIONS are created. This can lead to issues with data
structures which were only allocated for CONFIG_PCI_NR_FUNCTIONS.
This has been fixed in the following upstream commit:
969ae01bab2fe938b4c8324836038b5ac1c78fac
("s390/pci: Fix zpci_alloc_domain() over allocation")
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874057/+subscriptions
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[Kernel-packages] [Bug 1874057] Re: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS
** Summary changed: - s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS + [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874057 Title: [UBUNTU 20.04] s390x/pci: do not allow to create more pci functions than configured via CONFIG_PCI_NR_FUNCTIONS Status in linux package in Ubuntu: New Bug description: Description will follow To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874057/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
