This bug was fixed in the package linux - 4.15.0-55.60
---------------
linux (4.15.0-55.60) bionic; urgency=medium
* linux: 4.15.0-55.60 -proposed tracker (LP: #1834954)
* Request backport of ceph commits into bionic (LP: #1834235)
- ceph: use atomic_t for ceph_inode_info::i_shared_gen
- ceph: define argument structure for handle_cap_grant
- ceph: flush pending works before shutdown super
- ceph: send cap releases more aggressively
- ceph: single workqueue for inode related works
- ceph: avoid dereferencing invalid pointer during cached readdir
- ceph: quota: add initial infrastructure to support cephfs quotas
- ceph: quota: support for ceph.quota.max_files
- ceph: quota: don't allow cross-quota renames
- ceph: fix root quota realm check
- ceph: quota: support for ceph.quota.max_bytes
- ceph: quota: update MDS when max_bytes is approaching
- ceph: quota: add counter for snaprealms with quota
- ceph: avoid iput_final() while holding mutex or in dispatch thread
* QCA9377 isn't being recognized sometimes (LP: #1757218)
- SAUCE: USB: Disable USB2 LPM at shutdown
* hns: fix ICMP6 neighbor solicitation messages discard problem (LP: #1833140)
- net: hns: fix ICMP6 neighbor solicitation messages discard problem
- net: hns: fix unsigned comparison to less than zero
* Fix occasional boot time crash in hns driver (LP: #1833138)
- net: hns: Fix probabilistic memory overwrite when HNS driver initialized
* use-after-free in hns_nic_net_xmit_hw (LP: #1833136)
- net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw()
* hns: attempt to restart autoneg when disabled should report error
(LP: #1833147)
- net: hns: Restart autoneg need return failed when autoneg off
* systemd 237-3ubuntu10.14 ADT test failure on Bionic ppc64el (test-seccomp)
(LP: #1821625)
- powerpc: sys_pkey_alloc() and sys_pkey_free() system calls
- powerpc: sys_pkey_mprotect() system call
* [UBUNTU] pkey: Indicate old mkvp only if old and curr. mkvp are different
(LP: #1832625)
- pkey: Indicate old mkvp only if old and current mkvp are different
* [UBUNTU] kernel: Fix gcm-aes-s390 wrong scatter-gather list processing
(LP: #1832623)
- s390/crypto: fix gcm-aes-s390 selftest failures
* System crashes on hot adding a core with drmgr command (4.15.0-48-generic)
(LP: #1833716)
- powerpc/numa: improve control of topology updates
- powerpc/numa: document topology_updates_enabled, disable by default
* Kernel modules generated incorrectly when system is localized to a non-
English language (LP: #1828084)
- scripts: override locale from environment when running recordmcount.pl
* [UBUNTU] kernel: Fix wrong dispatching for control domain CPRBs
(LP: #1832624)
- s390/zcrypt: Fix wrong dispatching for control domain CPRBs
* CVE-2019-11815
- net: rds: force to destroy connection if t_sock is NULL in
rds_tcp_kill_sock().
* Sound device not detected after resume from hibernate (LP: #1826868)
- drm/i915: Force 2*96 MHz cdclk on glk/cnl when audio power is enabled
- drm/i915: Save the old CDCLK atomic state
- drm/i915: Remove redundant store of logical CDCLK state
- drm/i915: Skip modeset for cdclk changes if possible
* Handle overflow in proc_get_long of sysctl (LP: #1833935)
- sysctl: handle overflow in proc_get_long
* Dell XPS 13 (9370) defaults to s2idle sleep/suspend instead of deep, NVMe
drains lots of power under s2idle (LP: #1808957)
- Revert "UBUNTU: SAUCE: pci/nvme: prevent WDC PC SN720 NVMe from entering
D3
and being disabled"
- Revert "UBUNTU: SAUCE: nvme: add quirk to not call disable function when
suspending"
- Revert "UBUNTU: SAUCE: pci: prevent Intel NVMe SSDPEKKF from entering D3"
- Revert "SAUCE: nvme: add quirk to not call disable function when
suspending"
- Revert "SAUCE: pci: prevent sk hynix nvme from entering D3"
- PCI: PM: Avoid possible suspend-to-idle issue
- PCI: PM: Skip devices in D0 for suspend-to-idle
- nvme-pci: Sync queues on reset
- nvme: Export get and set features
- nvme-pci: Use host managed power state for suspend
* linux v4.15 ftbfs on a newer host kernel (e.g. hwe) (LP: #1823429)
- selinux: use kernel linux/socket.h for genheaders and mdp
* 32-bit x86 kernel 4.15.0-50 crash in vmalloc_sync_all (LP: #1830433)
- x86/mm/pat: Disable preemption around __flush_tlb_all()
- x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init()
- x86/mm: Disable ioremap free page handling on x86-PAE
- ioremap: Update pgtable free interfaces with addr
- x86/mm: Add TLB purge to free pmd/pte page interfaces
- x86/init: fix build with CONFIG_SWAP=n
- x86/mm: provide pmdp_establish() helper
- x86/mm: Use WRITE_ONCE() when setting PTEs
* hinic: fix oops due to race in set_rx_mode (LP: #1832048)
- hinic: fix a bug in set rx mode
* ubuntu 18.04 flickering screen with Radeon X1600 (LP: #1791312)
- drm/radeon: prefer lower reference dividers
* Login screen never appears on vmwgfx using bionic kernel 4.15 (LP: #1832138)
- drm/vmwgfx: use monotonic event timestamps
* [linux-azure] Block Layer Commits Requested in Azure Kernels (LP: #1834499)
- block: Clear kernel memory before copying to user
- block/bio: Do not zero user pages
* CONFIG_LOG_BUF_SHIFT set to 14 is too low on arm64 (LP: #1824864)
- [Config] CONFIG_LOG_BUF_SHIFT=18 on all 64bit arches
* Handle overflow for file-max (LP: #1834310)
- sysctl: handle overflow for file-max
- kernel/sysctl.c: fix out-of-bounds access when setting file-max
* [ALSA] [PATCH] Headset fixup for System76 Gazelle (gaze14) (LP: #1827555)
- ALSA: hda/realtek - Headset fixup for System76 Gazelle (gaze14)
- ALSA: hda/realtek - Corrected fixup for System76 Gazelle (gaze14)
* crashdump fails on HiSilicon D06 (LP: #1828868)
- iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump
kernel
- iommu/arm-smmu-v3: Don't disable SMMU in kdump kernel
* CVE-2019-11833
- ext4: zero out the unused memory region in the extent tree block
* zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that
hangs the system completely (LP: #1772412)
- SAUCE: (noup) Update zfs to 0.7.5-1ubuntu16.6
* does not detect headphone when there is no other output devices
(LP: #1831065)
- ALSA: hda/realtek - Fixed hp_pin no value
- ALSA: hda/realtek - Use a common helper for hp pin reference
* kernel crash : net_sched race condition in tcindex_destroy() (LP: #1825942)
- net_sched: fix NULL pointer dereference when delete tcindex filter
- RCU, workqueue: Implement rcu_work
- net_sched: switch to rcu_work
- net_sched: fix a race condition in tcindex_destroy()
- net_sched: fix a memory leak in cls_tcindex
- net_sched: initialize net pointer inside tcf_exts_init()
- net_sched: fix two more memory leaks in cls_tcindex
* Support new ums-realtek device (LP: #1831840)
- USB: usb-storage: Add new ID to ums-realtek
* amd_iommu possible data corruption (LP: #1823037)
- iommu/amd: Reserve exclusion range in iova-domain
- iommu/amd: Set exclusion range correctly
* Add new sound card PCIID into the alsa driver (LP: #1832299)
- ALSA: hda: Add Icelake PCI ID
- ALSA: hda/intel: add CometLake PCI IDs
* sky2 ethernet card doesn't work after returning from suspend
(LP: #1807259) // sky2 ethernet card link not up after suspend
(LP: #1809843)
- sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79
* idle-page oopses when accessing page frames that are out of range
(LP: #1833410)
- mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
* Add pointstick support on HP ZBook 17 G5 (LP: #1833387)
- Revert "HID: multitouch: Support ALPS PTP stick with pid 0x120A"
- SAUCE: HID: multitouch: Add pointstick support for ALPS Touchpad
* [SRU][B/B-OEM/B-OEM-OSP-1/C/D/E] Add trackpoint middle button support of 2
new thinpads (LP: #1833637)
- Input: elantech - enable middle button support on 2 ThinkPads
* CVE-2019-11085
- drm/i915/gvt: Fix mmap range check
- drm/i915: make mappable struct resource centric
- drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on
* CVE-2019-11884
- Bluetooth: hidp: fix buffer overflow
* af_alg06 test from crypto test suite in LTP failed with kernel oops on B/C
(LP: #1829725)
- crypto: authenc - fix parsing key with misaligned rta_len
* CVE-2018-12126 // CVE-2018-12127 // CVE-2018-12130 // CVE-2019-11091
- SAUCE: Synchronize MDS mitigations with upstream
- Documentation: Correct the possible MDS sysfs values
- x86/speculation/mds: Fix documentation typo
* CVE-2019-11091
- x86/mds: Add MDSUM variant to the MDS documentation
* alignment test in powerpc from ubuntu_kernel_selftests failed on B/C Power9
(LP: #1813118)
- selftests/powerpc: Remove Power9 copy_unaligned test
* TRACE_syscall.ptrace_syscall_dropped in seccomp from ubuntu_kernel_selftests
failed on B/C PowerPC (LP: #1812796)
- selftests/seccomp: Enhance per-arch ptrace syscall skip tests
* Add powerpc/alignment_handler test for selftests (LP: #1828935)
- selftests/powerpc: Add alignment handler selftest
- selftests/powerpc: Fix to use ucontext_t instead of struct ucontext
* Cannot build kernel 4.15.0-48.51 due to an in-source-tree ZFS module.
(LP: #1828763)
- SAUCE: (noup) Update zfs to 0.7.5-1ubuntu16.5
* Eletrical noise occurred when external headset enter powersaving mode on a
DEll machine (LP: #1828798)
- ALSA: hda/realtek - Reduce click noise on Dell Precision 5820 headphone
- ALSA: hda/realtek - Fixup headphone noise via runtime suspend
* [18.04/18.10] File libperf-jvmti.so is missing in linux-tools-common deb on
Ubuntu (LP: #1761379)
- [Packaging] Support building libperf-jvmti.so
* TCP : race condition on socket ownership in tcp_close() (LP: #1830813)
- tcp: do not release socket ownership in tcp_close()
* bionic: netlink: potential shift overflow in netlink_bind() (LP: #1831103)
- netlink: Don't shift on 64 for ngroups
* Add support to Comet Lake LPSS (LP: #1830175)
- mfd: intel-lpss: Add Intel Comet Lake PCI IDs
* Reduce NAPI weight in hns driver from 256 to 64 (LP: #1830587)
- net: hns: Use NAPI_POLL_WEIGHT for hns driver
* x86: add support for AMD Rome (LP: #1819485)
- x86: irq_remapping: Move irq remapping mode enum
- iommu/amd: Add support for higher 64-bit IOMMU Control Register
- iommu/amd: Add support for IOMMU XT mode
- hwmon/k10temp, x86/amd_nb: Consolidate shared device IDs
- hwmon/k10temp: Add support for AMD family 17h, model 30h CPUs
- x86/amd_nb: Add PCI device IDs for family 17h, model 30h
- x86/MCE/AMD: Fix the thresholding machinery initialization order
- x86/amd_nb: Add support for newer PCI topologies
* nx842 - CRB request time out (-110) when uninstall NX modules and initiate
NX request (LP: #1827755)
- crypto/nx: Initialize 842 high and normal RxFIFO control registers
* Require improved hypervisor detection patch in Ubuntu 18.04 (LP: #1829972)
- s390/early: improve machine detection
-- Kleber Sacilotto de Souza <kleber.so...@canonical.com> Tue, 02 Jul
2019 18:41:49 +0200
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12126
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12127
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12130
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-11085
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-11091
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-11815
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-11833
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-11884
--
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https://bugs.launchpad.net/bugs/1829725
Title:
af_alg06 test from crypto test suite in LTP failed with kernel oops on
B/C
Status in ubuntu-kernel-tests:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Fix Committed
Bug description:
== Justification ==
From the commit message:
Keys for "authenc" AEADs are formatted as an rtattr containing a 4-byte
'enckeylen', followed by an authentication key and an encryption key.
crypto_authenc_extractkeys() parses the key to find the inner keys.
However, it fails to consider the case where the rtattr's payload is
longer than 4 bytes but not 4-byte aligned, and where the key ends
before the next 4-byte aligned boundary. In this case, 'keylen -=
RTA_ALIGN(rta->rta_len);' underflows to a value near UINT_MAX. This
causes a buffer overread and crash during crypto_ahash_setkey().
This error can be easily reproduced with the af_alg06 test in LTP test
suite. (Basically it's the reproducer in the commit message)
== Fix ==
8f9c4693 (crypto: authenc - fix parsing key with misaligned rta_len)
This patch can be cherry-picked into B/C, and it's already in X/D/E.
== Test ==
Test kernels could be found here:
https://people.canonical.com/~phlin/kernel/lp-1829725-afalg06/
Both verified on a KVM node, this issue will no longer exist.
== Regression potential ==
Low, this patch just improves the checking for rtattr payload size to make
sure it's the expected size. Also It has been upstream since 2018 Dec. and
applied in some of our kernels. No subsequent bug report was filed against it.
== Original bug report ==
LTP: starting af_alg06
BUG: unable to handle kernel paging request at ffff9cbffffe0000
IP: sha256_transform+0x28/0x1b20
PGD 4d341067 P4D 4d341067 PUD 4d345067 PMD 4d346067 PTE 0
Oops: 0000 [#1] SMP PTI
Modules linked in: authenc algif_aead xfrm_user xfrm_algo sha3_generic
algif_hash salsa20_generic algif_skcipher af_alg kvm_intel kvm irqbypass joydev
input_leds serio_raw mac_hid sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core
iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4
btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq
async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear cirrus
ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops virtio_net
psmouse virtio_blk drm i2c_piix4 pata_acpi floppy
CPU: 0 PID: 24368 Comm: af_alg06 Not tainted 4.15.0-50-generic #54-Ubuntu
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
Ubuntu-1.8.2-1ubuntu1 04/01/2014
RIP: 0010:sha256_transform+0x28/0x1b20
RSP: 0018:ffffb58e8344baa0 EFLAGS: 00010283
RAX: 0000000000000034 RBX: ffff9cbffffe000c RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff9cbffffdffcc RDI: ffffb58e8344bca8
RBP: ffffb58e8344bbd0 R08: 000000001b6c96f6 R09: ffffb58e8344baa0
R10: 000000007a9a01a1 R11: 000000001ecb7428 R12: ffff9cc0f332c00c
R13: ffffb58e8344bca8 R14: ffff9cbff4d8d048 R15: ffff9cbff332c00c
FS: 00007f9f2a44d580(0000) GS:ffff9cbfffc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9cbffffe0000 CR3: 000000007c1da000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
sha256_generic_block_fn+0x36/0x50
crypto_sha256_finup+0xef/0x170
crypto_shash_finup+0x25/0x30
shash_digest_unaligned+0x47/0x60
crypto_shash_digest+0x2e/0x40
hmac_setkey+0x15a/0x210
? tty_insert_flip_string_fixed_flag+0x86/0xe0
crypto_shash_setkey+0x35/0xc0
? pty_write+0x71/0x90
shash_async_setkey+0x15/0x20
crypto_ahash_setkey+0x38/0xb0
crypto_authenc_setkey+0x68/0x100 [authenc]
crypto_aead_setkey+0x35/0xc0
aead_setkey+0x15/0x20 [algif_aead]
alg_setsockopt+0x112/0x140 [af_alg]
SyS_setsockopt+0x86/0xf0
do_syscall_64+0x73/0x130
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x7f9f29f61e6a
RSP: 002b:00007ffdd050ba38 EFLAGS: 00000207 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f9f2a44d500 RCX: 00007f9f29f61e6a
RDX: 0000000000000001 RSI: 0000000000000117 RDI: 0000000000000006
RBP: 0000000000000006 R08: 0000000000000009 R09: 00007ffdd050b960
R10: 00007ffdd050ba4f R11: 0000000000000207 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 000056456d64d908
Code: 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 81
ec 08 01 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 <8b> 14 06 0f ca 89
94 05 d0 fe ff ff 48 83 c0 04 48 83 f8 40 75
RIP: sha256_transform+0x28/0x1b20 RSP: ffffb58e8344baa0
CR2: ffff9cbffffe0000
---[ end trace ac2d55c95d4eed9d ]---
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-50-generic 4.15.0-50.54
ProcVersionSignature: User Name 4.15.0-50.54-generic 4.15.18
Uname: Linux 4.15.0-50-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 20 08:23 seq
crw-rw---- 1 root audio 116, 33 May 20 08:23 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Mon May 20 08:44:39 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB: 0 cirrusdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-50-generic
root=UUID=576666e8-9e7f-40ee-934e-f1dce18323e5 ro
RelatedPackageVersions:
linux-restricted-modules-4.15.0-50-generic N/A
linux-backports-modules-4.15.0-50-generic N/A
linux-firmware 1.173.6
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-xenial
dmi.modalias:
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-xenial:cvnQEMU:ct1:cvrpc-i440fx-xenial:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-xenial
dmi.sys.vendor: QEMU
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