[Kernel-packages] [Bug 1946464] Re: Invalid backport to v4.15: missing pgtable_l5_enabled
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
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Title:
Invalid backport to v4.15: missing pgtable_l5_enabled
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Bug description:
[Impact]
Commit 5047ef5725ed ("x86/mm: Don't free P4D table when it is folded at
runtime") should not be backported to v4.15 because:
1. It adds pgtable_l5_enabled which does not exist in v4.15,
2. It is marked as v4.17+
3. It is marked as fixing commit which does not exist in v4.15 and was not
backported there.
allyesconfig in x86_64 fails to build:
---
In file included from ../arch/x86/include/asm/mmu_context.h:12,
from ../include/linux/mmu_context.h:5,
from ../arch/x86/kvm/../../../virt/kvm/async_pf.c:26:
../arch/x86/include/asm/pgalloc.h: In function ‘p4d_free’:
../arch/x86/include/asm/pgalloc.h:185:7: error: ‘pgtable_l5_enabled’
undeclared (first use in this function); did you mean ‘movable_node_enabled’?
185 | if (!pgtable_l5_enabled)
| ^~
| movable_node_enabled
---
[Test Plan]
Compile the x86_64 KVM code.
[Where problems could occur]
If backport commit is actually needed, e.g. when we backport 5-level
page tables and commit 98219dda2ab5 ("x86/mm: Fold p4d page table
layer at runtime"), this could cause double-free and memory
corruption.
When backporting x86_64 5-level pages, we need to bring this commit as
well.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1946464/+subscriptions
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[Kernel-packages] [Bug 1946464] Re: Invalid backport to v4.15: missing pgtable_l5_enabled
This bug was fixed in the package linux - 4.15.0-162.170 --- linux (4.15.0-162.170) bionic; urgency=medium * bionic/linux: 4.15.0-162.170 -proposed tracker (LP: #1947293) * Add final-checks to check certificates (LP: #1947174) - [Packaging] Add system trusted and revocation keys final check * CVE-2020-36385 - RDMA/cma: Add missing locking to rdma_accept() - RDMA/ucma: Fix the locking of ctx->file - RDMA/ucma: Rework ucma_migrate_id() to avoid races with destroy * CVE-2021-28950 - fuse: fix live lock in fuse_iget() * CVE-2020-36322 - fuse: fix bad inode * Bionic update: upstream stable patchset 2021-10-13 (LP: #1947011) - rcu: Fix missed wakeup of exp_wq waiters - apparmor: remove duplicate macro list_entry_is_head() - crypto: talitos - fix max key size for sha384 and sha512 - sctp: validate chunk size in __rcv_asconf_lookup - sctp: add param size validation for SCTP_PARAM_SET_PRIMARY - dmaengine: acpi: Avoid comparison GSI with Linux vIRQ - thermal/drivers/exynos: Fix an error code in exynos_tmu_probe() - 9p/trans_virtio: Remove sysfs file on probe failure - prctl: allow to setup brk for et_dyn executables - profiling: fix shift-out-of-bounds bugs - pwm: lpc32xx: Don't modify HW state in .probe() after the PWM chip was registered - Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH - parisc: Move pci_dev_is_behind_card_dino to where it is used - dmaengine: ioat: depends on !UML - dmaengine: xilinx_dma: Set DMA mask for coherent APIs - ceph: lockdep annotations for try_nonblocking_invalidate - nilfs2: fix memory leak in nilfs_sysfs_create_device_group - nilfs2: fix NULL pointer in nilfs_##name##_attr_release - nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group - nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group - nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group - nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group - pwm: rockchip: Don't modify HW state in .remove() callback - blk-throttle: fix UAF by deleteing timer in blk_throtl_exit() - drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV - nilfs2: use refcount_dec_and_lock() to fix potential UAF - drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() * Invalid backport to v4.15: missing pgtable_l5_enabled (LP: #1946464) - SAUCE: Revert "x86/mm: Don't free P4D table when it is folded at runtime" * CVE-2021-38199 - NFSv4: Initialise connection to the server in nfs4_alloc_client() * CVE-2019-19449 - f2fs: fix wrong total_sections check and fsmeta check - f2fs: fix to do sanity check on segment/section count * vrf: fix refcnt leak with vxlan slaves (LP: #1945180) - ipv4: Fix device used for dst_alloc with local routes * Check for changes relevant for security certifications (LP: #1945989) - [Packaging] Add a new fips-checks script - [Packaging] Add fips-checks as part of finalchecks * CVE-2021-3759 - memcg: enable accounting of ipc resources * Bionic update: upstream stable patchset 2021-09-27 (LP: #1945224) - ARC: Fix CONFIG_STACKDEPOT - can: usb: esd_usb2: esd_usb2_rx_event(): fix the interchange of the CAN RX and TX error counters - Revert "USB: serial: ch341: fix character loss at high transfer rates" - USB: serial: option: add new VID/PID to support Fibocom FG150 - usb: dwc3: gadget: Fix dwc3_calc_trbs_left() - usb: dwc3: gadget: Stop EP0 transfers during pullup disable - IB/hfi1: Fix possible null-pointer dereference in _extend_sdma_tx_descs() - e1000e: Fix the max snoop/no-snoop latency for 10M - ip_gre: add validation for csum_start - xgene-v2: Fix a resource leak in the error handling path of 'xge_probe()' - net: marvell: fix MVNETA_TX_IN_PRGRS bit number - usb: gadget: u_audio: fix race condition on endpoint stop - opp: remove WARN when no valid OPPs remain - virtio: Improve vq->broken access to avoid any compiler optimization - vringh: Use wiov->used to check for read/write desc order - drm: Copy drm_wait_vblank to user before returning - drm/nouveau/disp: power down unused DP links during init - net/rds: dma_map_sg is entitled to merge entries - vt_kdsetmode: extend console locking - fbmem: add margin check to fb_check_caps() - KVM: x86/mmu: Treat NX as used (not reserved) for all !TDP shadow MMUs - Revert "floppy: reintroduce O_NDELAY fix" - net: qrtr: fix another OOB Read in qrtr_endpoint_post - net: hns3: fix get wrong pfc_en when query PFC configuration - xtensa: fix kconfig unmet dependency warning for HAVE_FUTEX_CMPXCHG - qed: Fix the VF msix vectors flow - net: macb: Add a NULL check on desc_ptp - qede: Fix memset corruption - perf/x86/intel/pt: Fix mask of num_address_ranges - perf/x86/amd/ibs: Work around erratum #1197 -
[Kernel-packages] [Bug 1946464] Re: Invalid backport to v4.15: missing pgtable_l5_enabled
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1946464
Title:
Invalid backport to v4.15: missing pgtable_l5_enabled
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Bug description:
[Impact]
Commit 5047ef5725ed ("x86/mm: Don't free P4D table when it is folded at
runtime") should not be backported to v4.15 because:
1. It adds pgtable_l5_enabled which does not exist in v4.15,
2. It is marked as v4.17+
3. It is marked as fixing commit which does not exist in v4.15 and was not
backported there.
allyesconfig in x86_64 fails to build:
---
In file included from ../arch/x86/include/asm/mmu_context.h:12,
from ../include/linux/mmu_context.h:5,
from ../arch/x86/kvm/../../../virt/kvm/async_pf.c:26:
../arch/x86/include/asm/pgalloc.h: In function ‘p4d_free’:
../arch/x86/include/asm/pgalloc.h:185:7: error: ‘pgtable_l5_enabled’
undeclared (first use in this function); did you mean ‘movable_node_enabled’?
185 | if (!pgtable_l5_enabled)
| ^~
| movable_node_enabled
---
[Test Plan]
Compile the x86_64 KVM code.
[Where problems could occur]
If backport commit is actually needed, e.g. when we backport 5-level
page tables and commit 98219dda2ab5 ("x86/mm: Fold p4d page table
layer at runtime"), this could cause double-free and memory
corruption.
When backporting x86_64 5-level pages, we need to bring this commit as
well.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1946464/+subscriptions
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[Kernel-packages] [Bug 1946464] Re: Invalid backport to v4.15: missing pgtable_l5_enabled
This bug is awaiting verification that the linux/4.15.0-162.170 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-bionic' to 'verification-done-bionic'. If the
problem still exists, change the tag 'verification-needed-bionic' to
'verification-failed-bionic'.
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-bionic
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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/1946464
Title:
Invalid backport to v4.15: missing pgtable_l5_enabled
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Bug description:
[Impact]
Commit 5047ef5725ed ("x86/mm: Don't free P4D table when it is folded at
runtime") should not be backported to v4.15 because:
1. It adds pgtable_l5_enabled which does not exist in v4.15,
2. It is marked as v4.17+
3. It is marked as fixing commit which does not exist in v4.15 and was not
backported there.
allyesconfig in x86_64 fails to build:
---
In file included from ../arch/x86/include/asm/mmu_context.h:12,
from ../include/linux/mmu_context.h:5,
from ../arch/x86/kvm/../../../virt/kvm/async_pf.c:26:
../arch/x86/include/asm/pgalloc.h: In function ‘p4d_free’:
../arch/x86/include/asm/pgalloc.h:185:7: error: ‘pgtable_l5_enabled’
undeclared (first use in this function); did you mean ‘movable_node_enabled’?
185 | if (!pgtable_l5_enabled)
| ^~
| movable_node_enabled
---
[Test Plan]
Compile the x86_64 KVM code.
[Where problems could occur]
If backport commit is actually needed, e.g. when we backport 5-level
page tables and commit 98219dda2ab5 ("x86/mm: Fold p4d page table
layer at runtime"), this could cause double-free and memory
corruption.
When backporting x86_64 5-level pages, we need to bring this commit as
well.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1946464/+subscriptions
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More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1946464] Re: Invalid backport to v4.15: missing pgtable_l5_enabled
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
--
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/1946464
Title:
Invalid backport to v4.15: missing pgtable_l5_enabled
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Bug description:
[Impact]
Commit 5047ef5725ed ("x86/mm: Don't free P4D table when it is folded at
runtime") should not be backported to v4.15 because:
1. It adds pgtable_l5_enabled which does not exist in v4.15,
2. It is marked as v4.17+
3. It is marked as fixing commit which does not exist in v4.15 and was not
backported there.
allyesconfig in x86_64 fails to build:
---
In file included from ../arch/x86/include/asm/mmu_context.h:12,
from ../include/linux/mmu_context.h:5,
from ../arch/x86/kvm/../../../virt/kvm/async_pf.c:26:
../arch/x86/include/asm/pgalloc.h: In function ‘p4d_free’:
../arch/x86/include/asm/pgalloc.h:185:7: error: ‘pgtable_l5_enabled’
undeclared (first use in this function); did you mean ‘movable_node_enabled’?
185 | if (!pgtable_l5_enabled)
| ^~
| movable_node_enabled
---
[Test Plan]
Compile the x86_64 KVM code.
[Where problems could occur]
If backport commit is actually needed, e.g. when we backport 5-level
page tables and commit 98219dda2ab5 ("x86/mm: Fold p4d page table
layer at runtime"), this could cause double-free and memory
corruption.
When backporting x86_64 5-level pages, we need to bring this commit as
well.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1946464/+subscriptions
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[Kernel-packages] [Bug 1946464] Re: Invalid backport to v4.15: missing pgtable_l5_enabled
** Changed in: linux (Ubuntu)
Status: Incomplete => In Progress
** Changed in: linux (Ubuntu Bionic)
Status: Incomplete => In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Krzysztof Kozlowski (krzk)
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Krzysztof Kozlowski (krzk)
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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/1946464
Title:
Invalid backport to v4.15: missing pgtable_l5_enabled
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
In Progress
Bug description:
[Impact]
Commit 5047ef5725ed ("x86/mm: Don't free P4D table when it is folded at
runtime") should not be backported to v4.15 because:
1. It adds pgtable_l5_enabled which does not exist in v4.15,
2. It is marked as v4.17+
3. It is marked as fixing commit which does not exist in v4.15 and was not
backported there.
allyesconfig in x86_64 fails to build:
---
In file included from ../arch/x86/include/asm/mmu_context.h:12,
from ../include/linux/mmu_context.h:5,
from ../arch/x86/kvm/../../../virt/kvm/async_pf.c:26:
../arch/x86/include/asm/pgalloc.h: In function ‘p4d_free’:
../arch/x86/include/asm/pgalloc.h:185:7: error: ‘pgtable_l5_enabled’
undeclared (first use in this function); did you mean ‘movable_node_enabled’?
185 | if (!pgtable_l5_enabled)
| ^~
| movable_node_enabled
---
[Test Plan]
Compile the x86_64 KVM code.
[Where problems could occur]
If backport commit is actually needed, e.g. when we backport 5-level
page tables and commit 98219dda2ab5 ("x86/mm: Fold p4d page table
layer at runtime"), this could cause double-free and memory
corruption.
When backporting x86_64 5-level pages, we need to bring this commit as
well.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1946464/+subscriptions
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