SUSE-SU-2022:2377-1

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• 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).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9khtcwaitfortarget function to fail with some input messages (bsc#1199487).
• 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).
• CVE-2022-1012: Fixed information leak caused by small table perturb size in the TCP source port generation algorithm (bsc#1199482).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ipcheckmc_rcu() (bsc#1200604).
• 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).
• CVE-2022-20154: Fixed a use after free due to a race condition in locksocknested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282)
• 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).
• 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:

• audit: fix a race condition with the auditd tracking code (bsc#1197170).
• block: bio-integrity: Advance seed correctly for larger interval sizes (git-fixes).
• bnxten: Remove the setting of devport (git-fixes).
• bonding: fix bondneighinit() (git-fixes).
• dm crypt: Avoid percpucounter spinlock contention in cryptpage_alloc() (git-fixes).
• drbd: fix duplicate array initializer (git-fixes).
• drbd: remove assignpsizes_qlim (git-fixes).
• drbd: use bdevalignmentoffset instead of queuealignmentoffset (git-fixes).
• drbd: use bdev based limit helpers in drbdsendsizes (git-fixes).
• exec: Force single empty string when argv is empty (bsc#1200571).
• ext4: fix bugon ext4mbuseinode_pa (bsc#1200810).
• ext4: fix bugon in _estreesearch (bsc#1200809).
• ext4: fix bugon in ext4writepages (bsc#1200872).
• ext4: fix overhead calculation to account for the reserved gdt blocks (bsc#1200869).
• ext4: fix race condition between ext4write and ext4convertinlinedata (bsc#1200807).
• ext4: fix symlink file size not match to file content (bsc#1200868).
• ext4: fix use-after-free in ext4renamedir_prepare (bsc#1200871).
• ext4: force overhead calculation if the soverheadcluster makes no sense (bsc#1200870).
• ext4: limit length to bitmapmaxbytes - blocksize in punchhole (bsc#1200806).
• ext4: make variable 'count' signed (bsc#1200820).
• fs-writeback: writebacksbinodes Recalculate 'wrote' according skipped pages (bsc#1200873).
• i915vma: Rename vmalookup to i915vmalookup (git-fixes).
• ibmvnic: Properly dispose of all skbs during a failover (bsc#1200925).
• init: Initialize noopbackingdev_info early (bsc#1200822).
• inotify: show inotify mask flags in proc fdinfo (bsc#1200600).
• Input: bcm5974 - set missing URBNOTRANSFERDMAMAP urb flag (git-fixes).
• Input: elan_i2c - fix regulator enable count imbalance after suspend/resume (git-fixes).
• Input: elani2c - move regulator[en|dis]able() out of elan[en|dis]ablepower() (git-fixes).
• Input: omap4-keypad - fix pmruntimeget_sync() error checking (git-fixes).
• iomap: iomapwritefailed fix (bsc#1200829).
• kvm: fix wrong exception emulation in check_rdtsc (git-fixes).
• kvm: i8254: remove redundant assignment to pointer s (git-fixes).
• KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw disabled (git-fixes).
• KVM: s390: vsie/gmap: reduce gmap_rmap overhead (git-fixes).
• KVM: x86: Allocate new rmap and large page tracking when moving memslot (git-fixes).
• KVM: x86: always stop emulation on page fault (git-fixes).
• KVM: x86: clear stale x86emulatectxt->intercept value (git-fixes).
• KVM: x86: clflushopt should be treated as a no-op by emulation (git-fixes).
• kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU (git-fixes).
• KVM: x86: Do not force set BSP bit when local APIC is managed by userspace (git-fixes).
• KVM: x86: do not modify masked bits of shared MSRs (git-fixes).
• KVM: x86/emulator: Defer not-present segment check in _loadsegment_descriptor() (git-fixes).
• KVM: x86: Fix emulation in writing cr8 (git-fixes).
• KVM: x86: Fix off-by-one error in kvmvcpuioctlx86setup_mce (git-fixes).
• KVM: x86: Fix potential putfpu() w/o loadfpu() on MPX platform (git-fixes).
• KVM: x86: Fix x86decodeinsn() return when fetching insn bytes fails (git-fixes).
• KVM: x86: Free wbinvddirtymask if vCPU creation fails (git-fixes).
• kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH (git-fixes).
• KVM: x86: Inject #GP if guest attempts to toggle CR4.LA57 in 64-bit mode (git-fixes).
• KVM: x86: Manually calculate reserved bits when loading PDPTRS (git-fixes).
• KVM: x86: Manually flush collapsible SPTEs only when toggling flags (git-fixes).
• KVM: x86: Migrate the PIT only if vcpu0 is migrated, not any BSP (git-fixes).
• KVM: x86/mmu: Treat invalid shadow pages as obsolete (git-fixes).
• KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks (git-fixes).
• KVM: x86: Remove spurious clearing of async #PF MSR (git-fixes).
• KVM: x86: Remove spurious kvmmmuunload() from vcpu destruction path (git-fixes).
• KVM: x86: remove stale comment from struct x86emulatectxt (git-fixes).
• KVM: x86: set ctxt->haveexception in x86decode_insn() (git-fixes).
• kvm: x86: skip populating logical dest map if apic is not sw enabled (git-fixes).
• KVM: x86: Trace the original requested CPUID function in kvm_cpuid() (git-fixes).
• KVM: x86: Update vCPU's hvclock before back to guest when tscoffset is adjusted (git-fixes).
• md: bcache: check the return value of kzalloc() in detacheddevdo_request() (git-fixes).
• md: fix an incorrect NULL check in doessbneed_changing (git-fixes).
• md: fix an incorrect NULL check in mdreloadsb (git-fixes).
• md/raid0: Ignore RAID0 layout if the second zone has only one device (git-fixes).
• mm: add vmalookup(), update findvma_intersection() comments (git-fixes).
• net/mlx5: Avoid double free of root ns in the error flow path (git-fixes).
• net/mlx5e: Replace reciprocal_scale in TX select queue function (git-fixes).
• net/mlx5e: Switch to Toeplitz RSS hash by default (git-fixes).
• net/mlx5: Fix auto group size calculation (git-fixes).
• net: qed: Disable aRFS for NPAR and 100G (git-fixes).
• net: qede: Disable aRFS for NPAR and 100G (git-fixes).
• net: stmmac: update rx tail pointer register to fix rx dma hang issue (git-fixes).
• NFSD: Fix possible sleep during nfsd4releaselockowner() (git-fixes).
• NFS: Further fixes to the writeback error handling (git-fixes).
• PCI/ACPI: Allow D3 only if Root Port can signal and wake from D3 (git-fixes).
• PCI: Tidy comments (git-fixes).
• platform/chrome: crosecproto: Send command again when timeout occurs (git-fixes).
• powerpc/idle: Fix return value of __setup() handler (bsc#1065729).
• powerpc/perf: Fix the threshold compare group constraint for power9 (bsc#1065729).
• powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address (bsc#1200343 ltc#198477).
• qed: Enable automatic recovery on error condition (bsc#1196964).
• raid5: introduce MD_BROKEN (git-fixes).
• s390: fix detection of vector enhancements facility 1 vs. vector packed decimal facility (git-fixes).
• s390: fix strrchr() implementation (git-fixes).
• s390/ftrace: fix ftraceupdateftrace_func implementation (git-fixes).
• s390/gmap: do not unconditionally call pteunmapunlock() in _gmapzap() (git-fixes).
• s390/gmap: validate VMA in _gmapzap() (git-fixes).
• s390/mm: fix VMA and page table handling code in storage key handling functions (git-fixes).
• s390/mm: validate VMA in PGSTE manipulation functions (git-fixes).
• scsi: dc395x: Fix a missing check on list iterator (git-fixes).
• scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled (git-fixes).
• scsi: ufs: qcom: Fix ufsqcomresume() (git-fixes).
• SUNRPC: Fix the calculation of xdr->end in xdrgetnextencodebuffer() (git-fixes).
• target: remove an incorrect unmap zeroes data deduction (git-fixes).
• tracing: Fix return value of tracepidwrite() (git-fixes).
• usb: musb: Fix missing ofnodeput() in omap2430_probe (git-fixes).
• USB: serial: option: add Quectel BG95 modem (git-fixes).
• USB: storage: karma: fix riokarmainit return (git-fixes).
• usb: usbip: add missing device lock on tweak configuration cmd (git-fixes).
• usb: usbip: fix a refcount leak in stub_probe() (git-fixes).
• video: fbdev: clcdfb: Fix refcount leak in clcdfbofvram_setup (bsc#1129770)
• writeback: Avoid skipping inode writeback (bsc#1200813).
• writeback: Fix inode->iiolist not be protected by inode->i_lock error (bsc#1200821).