Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2022.3417
Security update for the Linux Kernel
14 July 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2022-33981 CVE-2022-33742 CVE-2022-33741
CVE-2022-33740 CVE-2022-29901 CVE-2022-29900
CVE-2022-26365 CVE-2022-20154 CVE-2022-20141
CVE-2022-20132 CVE-2022-2318 CVE-2022-1679
CVE-2022-1012 CVE-2021-4157 CVE-2020-26541
Original Bulletin:
https://www.suse.com/support/update/announcement/2022/suse-su-20222377-1
Comment: CVSS (Max): 7.0 CVE-2022-20154 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:2377-1
Rating: important
References: #1065729 #1129770 #1177282 #1194013 #1196964 #1197170
#1199482 #1199487 #1199657 #1200343 #1200571 #1200599
#1200600 #1200604 #1200605 #1200608 #1200619 #1200692
#1200762 #1200806 #1200807 #1200809 #1200810 #1200813
#1200820 #1200821 #1200822 #1200829 #1200868 #1200869
#1200870 #1200871 #1200872 #1200873 #1200925 #1201080
#1201251
Cross-References: CVE-2020-26541 CVE-2021-4157 CVE-2022-1012 CVE-2022-1679
CVE-2022-20132 CVE-2022-20141 CVE-2022-20154 CVE-2022-2318
CVE-2022-26365 CVE-2022-29900 CVE-2022-29901 CVE-2022-33740
CVE-2022-33741 CVE-2022-33742 CVE-2022-33981
Affected Products:
SUSE Linux Enterprise Server 12-SP5
______________________________________________________________________________
An update that solves 15 vulnerabilities and has 22 fixes is now available.
Description:
The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security
and bugfixes.
The following security bugs were fixed:
o CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre
like Branch Target Buffer attack, that can leak arbitrary kernel
information (bsc#1199657).
o CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the
way a user forces the ath9k_htc_wait_for_target function to fail with some
input messages (bsc#1199487).
o CVE-2022-20132: Fixed out of bounds read due to improper input validation
in lg_probe and related functions of hid-lg.c (bsc#1200619).
o CVE-2022-1012: Fixed information leak caused by small table perturb size in
the TCP source port generation algorithm (bsc#1199482).
o CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
o CVE-2022-20141: Fixed a possible use after free due to improper locking in
ip_check_mc_rcu() (bsc#1200604).
o CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS
subsystem, related to the replication of files with NFS. A user could
potentially crash the system or escalate privileges on the system (bsc#
1194013).
o CVE-2022-20154: Fixed a use after free due to a race condition in
lock_sock_nested of sock.c. This could lead to local escalation of
privilege with System execution privileges needed (bsc#1200599).
o CVE-2020-26541: Enforce the secure boot forbidden signature database (aka
dbx) protection mechanism. (bsc#1177282)
o CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler
in net/rose/rose_timer.c that allow attackers to crash the system without
any privileges (bsc#1201251).
o CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed
multiple potential data leaks with Block and Network devices when using
untrusted backends (bsc#1200762).
The following non-security bugs were fixed:
o audit: fix a race condition with the auditd tracking code (bsc#1197170).
o block: bio-integrity: Advance seed correctly for larger interval sizes
(git-fixes).
o bnxt_en: Remove the setting of dev_port (git-fixes).
o bonding: fix bond_neigh_init() (git-fixes).
o dm crypt: Avoid percpu_counter spinlock contention in crypt_page_alloc()
(git-fixes).
o drbd: fix duplicate array initializer (git-fixes).
o drbd: remove assign_p_sizes_qlim (git-fixes).
o drbd: use bdev_alignment_offset instead of queue_alignment_offset
(git-fixes).
o drbd: use bdev based limit helpers in drbd_send_sizes (git-fixes).
o exec: Force single empty string when argv is empty (bsc#1200571).
o ext4: fix bug_on ext4_mb_use_inode_pa (bsc#1200810).
o ext4: fix bug_on in __es_tree_search (bsc#1200809).
o ext4: fix bug_on in ext4_writepages (bsc#1200872).
o ext4: fix overhead calculation to account for the reserved gdt blocks (bsc#
1200869).
o ext4: fix race condition between ext4_write and ext4_convert_inline_data
(bsc#1200807).
o ext4: fix symlink file size not match to file content (bsc#1200868).
o ext4: fix use-after-free in ext4_rename_dir_prepare (bsc#1200871).
o ext4: force overhead calculation if the s_overhead_cluster makes no sense
(bsc#1200870).
o ext4: limit length to bitmap_maxbytes - blocksize in punch_hole (bsc#
1200806).
o ext4: make variable "count" signed (bsc#1200820).
o fs-writeback: writeback_sb_inodes Recalculate 'wrote' according skipped
pages (bsc#1200873).
o i915_vma: Rename vma_lookup to i915_vma_lookup (git-fixes).
o ibmvnic: Properly dispose of all skbs during a failover (bsc#1200925).
o init: Initialize noop_backing_dev_info early (bsc#1200822).
o inotify: show inotify mask flags in proc fdinfo (bsc#1200600).
o Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag (git-fixes).
o Input: elan_i2c - fix regulator enable count imbalance after suspend/resume
(git-fixes).
o Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]
able_power() (git-fixes).
o Input: omap4-keypad - fix pm_runtime_get_sync() error checking (git-fixes).
o iomap: iomap_write_failed fix (bsc#1200829).
o kvm: fix wrong exception emulation in check_rdtsc (git-fixes).
o kvm: i8254: remove redundant assignment to pointer s (git-fixes).
o KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw
disabled (git-fixes).
o KVM: s390: vsie/gmap: reduce gmap_rmap overhead (git-fixes).
o KVM: x86: Allocate new rmap and large page tracking when moving memslot
(git-fixes).
o KVM: x86: always stop emulation on page fault (git-fixes).
o KVM: x86: clear stale x86_emulate_ctxt->intercept value (git-fixes).
o KVM: x86: clflushopt should be treated as a no-op by emulation (git-fixes).
o kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU
(git-fixes).
o KVM: x86: Do not force set BSP bit when local APIC is managed by userspace
(git-fixes).
o KVM: x86: do not modify masked bits of shared MSRs (git-fixes).
o KVM: x86/emulator: Defer not-present segment check in
__load_segment_descriptor() (git-fixes).
o KVM: x86: Fix emulation in writing cr8 (git-fixes).
o KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce (git-fixes).
o KVM: x86: Fix potential put_fpu() w/o load_fpu() on MPX platform
(git-fixes).
o KVM: x86: Fix x86_decode_insn() return when fetching insn bytes fails
(git-fixes).
o KVM: x86: Free wbinvd_dirty_mask if vCPU creation fails (git-fixes).
o kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH (git-fixes).
o KVM: x86: Inject #GP if guest attempts to toggle CR4.LA57 in 64-bit mode
(git-fixes).
o KVM: x86: Manually calculate reserved bits when loading PDPTRS (git-fixes).
o KVM: x86: Manually flush collapsible SPTEs only when toggling flags
(git-fixes).
o KVM: x86: Migrate the PIT only if vcpu0 is migrated, not any BSP
(git-fixes).
o KVM: x86/mmu: Treat invalid shadow pages as obsolete (git-fixes).
o KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks
(git-fixes).
o KVM: x86: Remove spurious clearing of async #PF MSR (git-fixes).
o KVM: x86: Remove spurious kvm_mmu_unload() from vcpu destruction path
(git-fixes).
o KVM: x86: remove stale comment from struct x86_emulate_ctxt (git-fixes).
o KVM: x86: set ctxt->have_exception in x86_decode_insn() (git-fixes).
o kvm: x86: skip populating logical dest map if apic is not sw enabled
(git-fixes).
o KVM: x86: Trace the original requested CPUID function in kvm_cpuid()
(git-fixes).
o KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is
adjusted (git-fixes).
o md: bcache: check the return value of kzalloc() in detached_dev_do_request
() (git-fixes).
o md: fix an incorrect NULL check in does_sb_need_changing (git-fixes).
o md: fix an incorrect NULL check in md_reload_sb (git-fixes).
o md/raid0: Ignore RAID0 layout if the second zone has only one device
(git-fixes).
o mm: add vma_lookup(), update find_vma_intersection() comments (git-fixes).
o net/mlx5: Avoid double free of root ns in the error flow path (git-fixes).
o net/mlx5e: Replace reciprocal_scale in TX select queue function
(git-fixes).
o net/mlx5e: Switch to Toeplitz RSS hash by default (git-fixes).
o net/mlx5: Fix auto group size calculation (git-fixes).
o net: qed: Disable aRFS for NPAR and 100G (git-fixes).
o net: qede: Disable aRFS for NPAR and 100G (git-fixes).
o net: stmmac: update rx tail pointer register to fix rx dma hang issue
(git-fixes).
o NFSD: Fix possible sleep during nfsd4_release_lockowner() (git-fixes).
o NFS: Further fixes to the writeback error handling (git-fixes).
o PCI/ACPI: Allow D3 only if Root Port can signal and wake from D3
(git-fixes).
o PCI: Tidy comments (git-fixes).
o platform/chrome: cros_ec_proto: Send command again when timeout occurs
(git-fixes).
o powerpc/idle: Fix return value of __setup() handler (bsc#1065729).
o powerpc/perf: Fix the threshold compare group constraint for power9 (bsc#
1065729).
o powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address
(bsc#1200343 ltc#198477).
o qed: Enable automatic recovery on error condition (bsc#1196964).
o raid5: introduce MD_BROKEN (git-fixes).
o s390: fix detection of vector enhancements facility 1 vs. vector packed
decimal facility (git-fixes).
o s390: fix strrchr() implementation (git-fixes).
o s390/ftrace: fix ftrace_update_ftrace_func implementation (git-fixes).
o s390/gmap: do not unconditionally call pte_unmap_unlock() in __gmap_zap()
(git-fixes).
o s390/gmap: validate VMA in __gmap_zap() (git-fixes).
o s390/mm: fix VMA and page table handling code in storage key handling
functions (git-fixes).
o s390/mm: validate VMA in PGSTE manipulation functions (git-fixes).
o scsi: dc395x: Fix a missing check on list iterator (git-fixes).
o scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled
(git-fixes).
o scsi: ufs: qcom: Fix ufs_qcom_resume() (git-fixes).
o SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer()
(git-fixes).
o target: remove an incorrect unmap zeroes data deduction (git-fixes).
o tracing: Fix return value of trace_pid_write() (git-fixes).
o usb: musb: Fix missing of_node_put() in omap2430_probe (git-fixes).
o USB: serial: option: add Quectel BG95 modem (git-fixes).
o USB: storage: karma: fix rio_karma_init return (git-fixes).
o usb: usbip: add missing device lock on tweak configuration cmd (git-fixes).
o usb: usbip: fix a refcount leak in stub_probe() (git-fixes).
o video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup (bsc#
1129770)
o writeback: Avoid skipping inode writeback (bsc#1200813).
o writeback: Fix inode->i_io_list not be protected by inode->i_lock error
(bsc#1200821).
Special Instructions and Notes:
Please reboot the system after installing this update.
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Server 12-SP5:
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-2377=1
Package List:
o SUSE Linux Enterprise Server 12-SP5 (noarch):
kernel-devel-azure-4.12.14-16.103.1
kernel-source-azure-4.12.14-16.103.1
o SUSE Linux Enterprise Server 12-SP5 (x86_64):
kernel-azure-4.12.14-16.103.1
kernel-azure-base-4.12.14-16.103.1
kernel-azure-base-debuginfo-4.12.14-16.103.1
kernel-azure-debuginfo-4.12.14-16.103.1
kernel-azure-debugsource-4.12.14-16.103.1
kernel-azure-devel-4.12.14-16.103.1
kernel-syms-azure-4.12.14-16.103.1
References:
o https://www.suse.com/security/cve/CVE-2020-26541.html
o https://www.suse.com/security/cve/CVE-2021-4157.html
o https://www.suse.com/security/cve/CVE-2022-1012.html
o https://www.suse.com/security/cve/CVE-2022-1679.html
o https://www.suse.com/security/cve/CVE-2022-20132.html
o https://www.suse.com/security/cve/CVE-2022-20141.html
o https://www.suse.com/security/cve/CVE-2022-20154.html
o https://www.suse.com/security/cve/CVE-2022-2318.html
o https://www.suse.com/security/cve/CVE-2022-26365.html
o https://www.suse.com/security/cve/CVE-2022-29900.html
o https://www.suse.com/security/cve/CVE-2022-29901.html
o https://www.suse.com/security/cve/CVE-2022-33740.html
o https://www.suse.com/security/cve/CVE-2022-33741.html
o https://www.suse.com/security/cve/CVE-2022-33742.html
o https://www.suse.com/security/cve/CVE-2022-33981.html
o https://bugzilla.suse.com/1065729
o https://bugzilla.suse.com/1129770
o https://bugzilla.suse.com/1177282
o https://bugzilla.suse.com/1194013
o https://bugzilla.suse.com/1196964
o https://bugzilla.suse.com/1197170
o https://bugzilla.suse.com/1199482
o https://bugzilla.suse.com/1199487
o https://bugzilla.suse.com/1199657
o https://bugzilla.suse.com/1200343
o https://bugzilla.suse.com/1200571
o https://bugzilla.suse.com/1200599
o https://bugzilla.suse.com/1200600
o https://bugzilla.suse.com/1200604
o https://bugzilla.suse.com/1200605
o https://bugzilla.suse.com/1200608
o https://bugzilla.suse.com/1200619
o https://bugzilla.suse.com/1200692
o https://bugzilla.suse.com/1200762
o https://bugzilla.suse.com/1200806
o https://bugzilla.suse.com/1200807
o https://bugzilla.suse.com/1200809
o https://bugzilla.suse.com/1200810
o https://bugzilla.suse.com/1200813
o https://bugzilla.suse.com/1200820
o https://bugzilla.suse.com/1200821
o https://bugzilla.suse.com/1200822
o https://bugzilla.suse.com/1200829
o https://bugzilla.suse.com/1200868
o https://bugzilla.suse.com/1200869
o https://bugzilla.suse.com/1200870
o https://bugzilla.suse.com/1200871
o https://bugzilla.suse.com/1200872
o https://bugzilla.suse.com/1200873
o https://bugzilla.suse.com/1200925
o https://bugzilla.suse.com/1201080
o https://bugzilla.suse.com/1201251
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