[Group.of.nepali.translators] [Bug 1777029] Re: fscache: Fix hanging wait on page discarded by writeback

2018-08-23 Thread Launchpad Bug Tracker 
This bug was fixed in the package linux - 3.13.0-157.207

---
linux (3.13.0-157.207) trusty; urgency=medium

  * linux: 3.13.0-157.207 -proposed tracker (LP: #1787982)

  * CVE-2017-5715 (Spectre v2 retpoline)
- SAUCE: Fix "x86/retpoline/entry: Convert entry assembler indirect jumps"

  * CVE-2017-2583
- KVM: x86: fix emulation of "MOV SS, null selector"

  * CVE-2017-7518
- KVM: x86: fix singlestepping over syscall

  * CVE-2017-18270
- KEYS: prevent creating a different user's keyrings

  * Update to upstream's implementation of Spectre v1 mitigation (LP: #1774181)
- Documentation: Document array_index_nospec
- array_index_nospec: Sanitize speculative array de-references
- x86: Implement array_index_mask_nospec
- x86: Introduce barrier_nospec
- x86/get_user: Use pointer masking to limit speculation
- x86/syscall: Sanitize syscall table de-references under speculation
- vfs, fdtable: Prevent bounds-check bypass via speculative execution
- nl80211: Sanitize array index in parse_txq_params
- x86/spectre: Report get_user mitigation for spectre_v1
- x86/kvm: Update spectre-v1 mitigation
- nospec: Allow index argument to have const-qualified type
- nospec: Move array_index_nospec() parameter checking into separate macro
- nospec: Kill array_index_nospec_mask_check()
- SAUCE: Replace osb() calls with array_index_nospec()
- SAUCE: Rename osb() to barrier_nospec()
- SAUCE: x86: Use barrier_nospec in arch/x86/um/asm/barrier.h

  * Prevent speculation on user controlled pointer (LP: #1775137)
- x86: reorganize SMAP handling in user space accesses
- x86: fix SMAP in 32-bit environments
- x86: Introduce __uaccess_begin_nospec() and uaccess_try_nospec
- x86/usercopy: Replace open coded stac/clac with __uaccess_{begin, end}
- x86/uaccess: Use __uaccess_begin_nospec() and uaccess_try_nospec

  * CVE-2016-10208
- ext4: validate s_first_meta_bg at mount time
- ext4: fix fencepost in s_first_meta_bg validation

  * CVE-2018-10323
- xfs: set format back to extents if xfs_bmap_extents_to_btree

  * CVE-2017-16911
- usbip: prevent vhci_hcd driver from leaking a socket pointer address

  * CVE-2018-13406
- video: uvesafb: Fix integer overflow in allocation

  * CVE-2018-10877
- ext4: verify the depth of extent tree in ext4_find_extent()

  * CVE-2018-10881
- ext4: clear i_data in ext4_inode_info when removing inline data

  * CVE-2018-1092
- ext4: fail ext4_iget for root directory if unallocated

  * CVE-2018-1093
- ext4: fix block bitmap validation when bigalloc, ^flex_bg
- ext4: add validity checks for bitmap block numbers

  * CVE-2018-12233
- jfs: Fix inconsistency between memory allocation and ea_buf->max_size

  * CVE-2017-16912
- usbip: fix stub_rx: get_pipe() to validate endpoint number

  * CVE-2018-10675
- mm/mempolicy: fix use after free when calling get_mempolicy

  * CVE-2017-8831
- saa7164: fix sparse warnings
- saa7164: fix double fetch PCIe access condition

  * CVE-2017-16533
- HID: usbhid: fix out-of-bounds bug

  * CVE-2017-16538
- media: dvb-usb-v2: lmedm04: move ts2020 attach to dm04_lme2510_tuner
- media: dvb-usb-v2: lmedm04: Improve logic checking of warm start

  * CVE-2017-16644
- hdpvr: Remove deprecated create_singlethread_workqueue
- media: hdpvr: Fix an error handling path in hdpvr_probe()

  * CVE-2017-16645
- Input: ims-psu - check if CDC union descriptor is sane

  * CVE-2017-5549
- USB: serial: kl5kusb105: fix line-state error handling

  * CVE-2017-16532
- usb: usbtest: fix NULL pointer dereference

  * CVE-2017-16537
- media: imon: Fix null-ptr-deref in imon_probe

  * CVE-2017-11472
- ACPICA: Add additional debug info/statements
- ACPICA: Namespace: fix operand cache leak

  * CVE-2017-16643
- Input: gtco - fix potential out-of-bound access

  * CVE-2017-16531
- USB: fix out-of-bounds in usb_set_configuration

  * CVE-2018-10124
- kernel/signal.c: avoid undefined behaviour in kill_something_info

  * CVE-2017-6348
- irda: Fix lockdep annotations in hashbin_delete().

  * CVE-2017-17558
- USB: core: prevent malicious bNumInterfaces overflow

  * CVE-2017-5897
- ip6_gre: fix ip6gre_err() invalid reads

  * CVE-2017-6345
- SAUCE: import sock_efree()
- net/llc: avoid BUG_ON() in skb_orphan()

  * CVE-2017-7645
- nfsd: check for oversized NFSv2/v3 arguments

  * CVE-2017-9984
- ALSA: msnd: Optimize / harden DSP and MIDI loops

  * CVE-2018-1000204
- scsi: sg: allocate with __GFP_ZERO in sg_build_indirect()

  * CVE-2018-10021
- scsi: libsas: defer ata device eh commands to libata

  * CVE-2017-16914
- usbip: fix stub_send_ret_submit() vulnerability to null transfer_buffer

  * CVE-2017-16913
- usbip: fix stub_rx: harden CMD_SUBMIT path to handle malicious input

  * CVE-2017-16535
- USB: core: fix out-of-bounds access bug in

[Group.of.nepali.translators] [Bug 1777029] Re: fscache: Fix hanging wait on page discarded by writeback

2018-08-23 Thread Launchpad Bug Tracker 
This bug was fixed in the package linux - 4.15.0-33.36

---
linux (4.15.0-33.36) bionic; urgency=medium

  * linux: 4.15.0-33.36 -proposed tracker (LP: #1787149)

  * RTNL assertion failure on ipvlan (LP: #1776927)
- ipvlan: drop ipv6 dependency
- ipvlan: use per device spinlock to protect addrs list updates
- SAUCE: fix warning from "ipvlan: drop ipv6 dependency"

  * ubuntu_bpf_jit test failed on Bionic s390x systems (LP: #1753941)
- test_bpf: flag tests that cannot be jited on s390

  * HDMI/DP audio can't work on the laptop of Dell Latitude 5495 (LP: #1782689)
- drm/nouveau: fix nouveau_dsm_get_client_id()'s return type
- drm/radeon: fix radeon_atpx_get_client_id()'s return type
- drm/amdgpu: fix amdgpu_atpx_get_client_id()'s return type
- platform/x86: apple-gmux: fix gmux_get_client_id()'s return type
- ALSA: hda: use PCI_BASE_CLASS_DISPLAY to replace PCI_CLASS_DISPLAY_VGA
- vga_switcheroo: set audio client id according to bound GPU id

  * locking sockets broken due to missing AppArmor socket mediation patches
(LP: #1780227)
- UBUNTU SAUCE: apparmor: fix apparmor mediating locking non-fs, unix 
sockets

  * Update2 for ocxl driver (LP: #1781436)
- ocxl: Fix page fault handler in case of fault on dying process

  * netns: unable to follow an interface that moves to another netns
(LP: #1774225)
- net: core: Expose number of link up/down transitions
- dev: always advertise the new nsid when the netns iface changes
- dev: advertise the new ifindex when the netns iface changes

  * [Bionic] Disk IO hangs when using BFQ as io scheduler (LP: #1780066)
- block, bfq: fix occurrences of request finish method's old name
- block, bfq: remove batches of confusing ifdefs
- block, bfq: add requeue-request hook

  * HP ProBook 455 G5 needs mute-led-gpio fixup (LP: #1781763)
- ALSA: hda: add mute led support for HP ProBook 455 G5

  * [Bionic] bug fixes to improve stability of the ThunderX2 i2c driver
(LP: #1781476)
- i2c: xlp9xx: Fix issue seen when updating receive length
- i2c: xlp9xx: Make sure the transfer size is not more than
  I2C_SMBUS_BLOCK_SIZE

  * x86/kvm: fix LAPIC timer drift when guest uses periodic mode (LP: #1778486)
- x86/kvm: fix LAPIC timer drift when guest uses periodic mode

  * Please include ax88179_178a and r8152 modules in d-i udeb (LP: #1771823)
- [Config:] d-i: Add ax88179_178a and r8152 to nic-modules

  * Nvidia fails after switching its mode (LP: #1778658)
- PCI: Restore config space on runtime resume despite being unbound

  * Kernel error "task zfs:pid blocked for more than 120 seconds" (LP: #1781364)
- SAUCE: (noup) zfs to 0.7.5-1ubuntu16.3

  * CVE-2018-12232
- PATCH 1/1] socket: close race condition between sock_close() and
  sockfs_setattr()

  * CVE-2018-10323
- xfs: set format back to extents if xfs_bmap_extents_to_btree

  * change front mic location for more lenovo m7/8/9xx machines (LP: #1781316)
- ALSA: hda/realtek - Fix the problem of two front mics on more machines
- ALSA: hda/realtek - two more lenovo models need fixup of MIC_LOCATION

  * Cephfs + fscache: unable to handle kernel NULL pointer dereference at
 IP: jbd2__journal_start+0x22/0x1f0 (LP: #1783246)
- ceph: track read contexts in ceph_file_info

  * Touchpad of ThinkPad P52 failed to work with message "lost sync at byte"
(LP: #1779802)
- Input: elantech - fix V4 report decoding for module with middle key
- Input: elantech - enable middle button of touchpads on ThinkPad P52

  * xhci_hcd :00:14.0: Root hub is not suspended (LP: #1779823)
- usb: xhci: dbc: Fix lockdep warning
- usb: xhci: dbc: Don't decrement runtime PM counter if DBC is not started

  * CVE-2018-13406
- video: uvesafb: Fix integer overflow in allocation

  * CVE-2018-10840
- ext4: correctly handle a zero-length xattr with a non-zero e_value_offs

  * CVE-2018-11412
- ext4: do not allow external inodes for inline data

  * CVE-2018-10881
- ext4: clear i_data in ext4_inode_info when removing inline data

  * CVE-2018-12233
- jfs: Fix inconsistency between memory allocation and ea_buf->max_size

  * CVE-2018-12904
- kvm: nVMX: Enforce cpl=0 for VMX instructions

  * Error parsing PCC subspaces from PCCT (LP: #1528684)
- mailbox: PCC: erroneous error message when parsing ACPI PCCT

  * CVE-2018-13094
- xfs: don't call xfs_da_shrink_inode with NULL bp

  * other users' coredumps can be read via setgid directory and killpriv bypass
(LP: #1779923) // CVE-2018-13405
- Fix up non-directory creation in SGID directories

  * Invoking obsolete 'firmware_install' target breaks snap build (LP: #1782166)
- snapcraft.yaml: stop invoking the obsolete (and non-existing)
  'firmware_install' target

  * snapcraft.yaml: missing ubuntu-retpoline-extract-one script breaks the build
(LP: #1782116)
- snapcraft.yaml: copy

[Group.of.nepali.translators] [Bug 1777029] Re: fscache: Fix hanging wait on page discarded by writeback

2018-07-11 Thread Dan Streetman 
Note, this merged into Xenial via bug 1775771 by standard upstream
stable merge process; it landed in Xenial commit
25ef67b828ea16b768ce2c549c2c92b9cad79ceb which is included starting at
kernel 4.4.0-129.155.

** Changed in: linux (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1777029

Title:
  fscache: Fix hanging wait on page discarded by writeback

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Trusty:
  Fix Committed
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Artful:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  == SRU Justification ==

  [Impact]
  Under heavy NFS + FSCache load, a user sometimes observes a hang in 
__fscache_wait_on_page_write+0x5f/0xa0.

  Example traces:
  [] __fscache_wait_on_page_write+0x5f/0xa0 [fscache]
  [] __fscache_uncache_all_inode_pages+0xba/0x120 [fscache]
  [] nfs_fscache_open_file+0x4e/0xc0 [nfs]

  [] __fscache_wait_on_page_write+0x5f/0xa0 [fscache]
  [] __nfs_fscache_invalidate_page+0x2c/0x80 [nfs]
  [] nfs_invalidate_page+0x63/0x90 [nfs]
  [] truncate_inode_page+0x80/0x90

  [Fix]
  Cherry-pick 2c98425720233ae3e135add0c7e869b32913502f from upstream, which is 
a patch from the FSCache maintainer.

  [Testcase]
  The user has run a NFS stress-test with a similar home-grown patch, and will 
run a stress test on the proposed kernel.

  [Regression Potential]
  Patch is limited to FSCache, so regression potential is limited.

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