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             AUSCERT External Security Bulletin Redistribution

                   Security update for the Linux Kernel
                             19 September 2022


        AusCERT Security Bulletin Summary

Product:           Linux Kernel
Publisher:         SUSE
Operating System:  SUSE
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-36879 CVE-2022-29581 CVE-2022-26373
                   CVE-2022-21385 CVE-2022-20369 CVE-2022-20368
                   CVE-2022-3028 CVE-2022-2977 CVE-2022-2639
                   CVE-2022-2588 CVE-2021-4203 CVE-2020-36516

Original Bulletin: 

Comment: CVSS (Max):  8.1 CVE-2020-36516 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
         CVSS Source: SUSE
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

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SUSE Security Update: Security update for the Linux Kernel


Announcement ID:   SUSE-SU-2022:3282-1
Rating:            important
References:        #1054914 #1065729 #1120716 #1179310 #1190397 #1191881
                   #1194535 #1196616 #1197158 #1199617 #1199665 #1201019
                   #1201264 #1201420 #1201442 #1201610 #1201705 #1201726
                   #1201948 #1202017 #1202096 #1202154 #1202346 #1202347
                   #1202393 #1202396 #1202528 #1202577 #1202672 #1202830
                   #1202897 #1202898 #1203013 #1203098 #1203126
Cross-References:  CVE-2020-36516 CVE-2021-4203 CVE-2022-20368 CVE-2022-20369
                   CVE-2022-21385 CVE-2022-2588 CVE-2022-26373 CVE-2022-2639
                   CVE-2022-29581 CVE-2022-2977 CVE-2022-3028 CVE-2022-36879
Affected Products:
                   SUSE Linux Enterprise Server 12-SP5

An update that solves 12 vulnerabilities and has 23 fixes is now available.


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

The following security bugs were fixed:

  o CVE-2022-36879: Fixed an issue in xfrm_expand_policies in net/xfrm/
    xfrm_policy.c where a refcount could be dropped twice (bnc#1201948).
  o CVE-2022-3028: Fixed race condition that was found in the IP framework for
    transforming packets (XFRM subsystem) (bnc#1202898).
  o CVE-2022-2977: Fixed reference counting for struct tpm_chip (bsc#1202672).
  o CVE-2022-29581: Fixed improper update of reference count vulnerability in
    net/sched that allowed a local attacker to cause privilege escalation to
    root (bnc#1199665).
  o CVE-2022-2639: Fixed an integer coercion error that was found in the
    openvswitch kernel module (bnc#1202154).
  o CVE-2022-26373: Fixed non-transparent sharing of return predictor targets
    between contexts in some Intel Processors (bnc#1201726).
  o CVE-2022-2588: Fixed use-after-free in cls_route (bsc#1202096).
  o CVE-2022-21385: Fixed a flaw in net_rds_alloc_sgs() that allowed
    unprivileged local users to crash the machine (bnc#1202897).
  o CVE-2022-20369: Fixed possible out of bounds write due to improper input
    validation in v4l2_m2m_querybuf of v4l2-mem2mem.c (bnc#1202347).
  o CVE-2022-20368: Fixed slab-out-of-bounds access in packet_recvmsg() (bsc#
  o CVE-2021-4203: Fixed use-after-free read flaw that was found in
    sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS
    race with listen() (bnc#1194535).
  o CVE-2020-36516: Fixed an issue in the mixed IPID assignment method where an
    attacker was able to inject data into or terminate a victim's TCP session

The following non-security bugs were fixed:

  o 9p: migrate from sync_inode to filemap_fdatawrite_wbc (bsc#1202528).
  o ACPI: CPPC: Do not prevent CPPC from working in the future (git-fixes).
  o Fix releasing of old bundles in xfrm_bundle_lookup() (bsc#1201264 bsc#
    1190397 bsc#1199617).
  o KABI: cgroup: Restore KABI of css_set (bsc#1201610).
  o KVM: PPC: Book3S HV: Context tracking exit guest context before enabling
    irqs (bsc#1065729).
  o KVM: arm64: Avoid setting the upper 32 bits of TCR_EL2 and CPTR_EL2 (bsc#
  o KVM: nVMX: Set UMIP bit CR4_FIXED1 MSR when emulating UMIP (bsc#1120716).
  o KVM: x86: Mark TSS busy during LTR emulation _after_ all fault checks
  o KVM: x86: Set error code to segment selector on LLDT/LTR non-canonical #GP
  o PCI: dwc: Deallocate EPC memory on dw_pcie_ep_init() errors (git-fixes).
  o Revert "USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST
    quirk set" (git-fixes).
  o Revert "r8152: adjust the settings about MAC clock speed down for RTL8153"
  o SUNRPC: Fix READ_PLUS crasher (git-fixes).
  o SUNRPC: Fix the svc_deferred_event trace class (git-fixes).
  o USB: new quirk for Dell Gen 2 devices (git-fixes).
  o USB: serial: io_ti: add Agilent E5805A support (git-fixes).
  o add Kirk Allan as branch maintainer
  o ata: libata: add qc->flags in ata_qc_complete_template tracepoint
  o btrfs: Convert fs_info->free_chunk_space to atomic64_t (bsc#1202528).
  o btrfs: add a trace class for dumping the current ENOSPC state (bsc#
  o btrfs: add a trace point for reserve tickets (bsc#1202528).
  o btrfs: adjust the flush trace point to include the source (bsc#1202528).
  o btrfs: check reclaim_size in need_preemptive_reclaim (bsc#1202528).
  o btrfs: check worker before need_preemptive_reclaim (bsc#1202528).
  o btrfs: do not do preemptive flushing if the majority is global rsv (bsc#
  o btrfs: do not include the global rsv size in the preemptive used amount
  o btrfs: enable a tracepoint when we fail tickets (bsc#1202528).
  o btrfs: handle preemptive delalloc flushing slightly differently (bsc#
  o btrfs: implement space clamping for preemptive flushing (bsc#1202528).
  o btrfs: improve preemptive background space flushing (bsc#1202528).
  o btrfs: include delalloc related info in dump space info tracepoint (bsc#
  o btrfs: introduce a FORCE_COMMIT_TRANS flush operation (bsc#1202528).
  o btrfs: make flush_space take a enum btrfs_flush_state instead of int (bsc#
  o btrfs: only clamp the first time we have to start flushing (bsc#1202528).
  o btrfs: only ignore delalloc if delalloc is much smaller than ordered (bsc#
  o btrfs: reduce the preemptive flushing threshold to 90% (bsc#1202528).
  o btrfs: remove FLUSH_DELAYED_REFS from data ENOSPC flushing (bsc#1202528).
  o btrfs: rename need_do_async_reclaim (bsc#1202528).
  o btrfs: rework btrfs_calc_reclaim_metadata_size (bsc#1202528).
  o btrfs: rip out btrfs_space_info::total_bytes_pinned (bsc#1202528).
  o btrfs: rip out may_commit_transaction (bsc#1202528).
  o btrfs: rip the first_ticket_bytes logic from fail_all_tickets (bsc#
  o btrfs: simplify the logic in need_preemptive_flushing (bsc#1202528).
  o btrfs: take into account global rsv in need_preemptive_reclaim (bsc#
  o btrfs: use delalloc_bytes to determine flush amount for shrink_delalloc
  o btrfs: use percpu_read_positive instead of sum_positive for need_preempt
  o btrfs: use the filemap_fdatawrite_wbc helper for delalloc shrinking (bsc#
  o btrfs: use the global rsv size in the preemptive thresh calculation (bsc#
  o btrfs: wait on async extents when flushing delalloc (bsc#1202528).
  o btrfs: wake up async_delalloc_pages waiters after submit (bsc#1202528).
  o ceph: do not truncate file in atomic_open (bsc#1202830).
  o cgroup: Use separate src/dst nodes when preloading css_sets for migration
  o check sk_peer_cred pointer before put_cred() call
  o crypto: arm64/gcm - Select AEAD for GHASH_ARM64_CE (git-fixes).
  o crypto: inside-secure - Add missing MODULE_DEVICE_TABLE for of (git-fixes).
  o cxgb4: fix endian conversions for L4 ports in filters (git-fixes).
  o cxgb4: move handling L2T ARP failures to caller (git-fixes).
  o cxgb4: parse TC-U32 key values and masks natively (git-fixes).
  o dm raid: fix KASAN warning in raid5_add_disks (git-fixes).
  o drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX (git-fixes).
  o fs: add a filemap_fdatawrite_wbc helper (bsc#1202528).
  o fuse: limit nsec (bsc#1203126).
  o iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE)
  o ipheth: fix EOVERFLOW in ipheth_rcvbulk_callback (git-fixes).
  o kabi/severities: add mlx5 internal symbols
  o kernel-obs-build: include qemu_fw_cfg (boo#1201705)
  o lightnvm: Remove lightnvm implemenation (bsc#1191881 bsc#1201420
  o md-raid: destroy the bitmap after destroying the thread (git-fixes).
  o md/bitmap: do not set sb values if can't pass sanity check (bsc#1197158).
  o mm/rmap.c: do not reuse anon_vma if we just want a copy (git-fixes, bsc#
  o mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse (git-fixes,
  o mvpp2: fix panic on module removal (git-fixes).
  o mvpp2: refactor the HW checksum setup (git-fixes).
  o net/mlx5: Clear LAG notifier pointer after unregister (git-fixes).
  o net/mlx5: Fix auto group size calculation (git-fixes).
  o net/mlx5: Imply MLXFW in mlx5_core (git-fixes).
  o net/mlx5e: Use the inner headers to determine tc/pedit offload limitation
    on decap flows (git-fixes).
  o net: dsa: mt7530: Change the LINK bit to reflect the link status
  o net: emaclite: Simplify if-else statements (git-fixes).
  o net: ll_temac: Add more error handling of dma_map_single() calls
  o net: ll_temac: Enable DMA when ready, not before (git-fixes).
  o net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure
  o net: ll_temac: Fix iommu/swiotlb leak (git-fixes).
  o net: ll_temac: Fix support for 64-bit platforms (git-fixes).
  o net: ll_temac: Fix support for little-endian platforms (git-fixes).
  o net: ll_temac: Fix typo bug for 32-bit (git-fixes).
  o net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale
    pointer (git-fixes).
  o net: stmmac: gmac4: bitrev32 returns u32 (git-fixes).
  o net: usb: lan78xx: Connect PHY before registering MAC (git-fixes).
  o net: xilinx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop
    profiles (git-fixes).
  o net_sched: cls_route: disallow handle of 0 (bsc#1202393).
  o objtool: Add --backtrace support (bsc#1202396).
  o objtool: Add support for intra-function calls (bsc#1202396).
  o objtool: Allow no-op CFI ops in alternatives (bsc#1202396).
  o objtool: Convert insn type to enum (bsc#1202396).
  o objtool: Do not use ignore flag for fake jumps (bsc#1202396).
  o objtool: Fix !CFI insn_state propagation (bsc#1202396).
  o objtool: Fix ORC vs alternatives (bsc#1202396).
  o objtool: Fix sibling call detection (bsc#1202396).
  o objtool: Make handle_insn_ops() unconditional (bsc#1202396).
  o objtool: Remove INSN_STACK (bsc#1202396).
  o objtool: Remove check preventing branches within alternative (bsc#1202396).
  o objtool: Rename elf_open() to prevent conflict with libelf from
    elftoolchain (bsc#1202396).
  o objtool: Rename struct cfi_state (bsc#1202396).
  o objtool: Rework allocating stack_ops on decode (bsc#1202396).
  o objtool: Rewrite alt->skip_orig (bsc#1202396).
  o objtool: Set insn->func for alternatives (bsc#1202396).
  o objtool: Support conditional retpolines (bsc#1202396).
  o objtool: Support multiple stack_op per instruction (bsc#1202396).
  o objtool: Track original function across branches (bsc#1202396).
  o objtool: Uniquely identify alternative instruction groups (bsc#1202396).
  o objtool: Use Elf_Scn typedef instead of assuming struct name (bsc#1202396).
  o pNFS: Do not keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
  o phy: tegra: fix device-tree node lookups (git-fixes).
  o powerpc/perf: Add privileged access check for thread_imc (bsc#1054914,
  o powerpc/perf: Fix loop exit condition in nest_imc_event_init (bsc#1054914,
  o powerpc/perf: Return accordingly on invalid chip-id in (bsc#1054914,
  o powerpc/powernv/kvm: Use darn for H_RANDOM on Power9 (bsc#1065729).
  o powerpc/powernv: Avoid crashing if rng is NULL (bsc#1065729).
  o powerpc/powernv: Staticify functions without prototypes (bsc#1065729).
  o powerpc/powernv: Use darn instruction for get_random_seed() on Power9 (bsc#
  o powerpc/powernv: delay rng platform device creation until later in boot
  o powerpc/powernv: rename remaining rng powernv_ functions to pnv_ (bsc#
  o powerpc/powernv: wire up rng during setup_arch (bsc#1065729).
  o powerpc/pseries: wire up rng during setup_arch() (bsc#1065729).
  o powerpc/xive: Fix refcount leak in xive_get_max_prio (git-fixess).
  o powerpc: Enable execve syscall exit tracepoint (bsc#1065729).
  o powerpc: Use sizeof(*foo) rather than sizeof(struct foo) (bsc#1054914,
  o powerpc: define get_cycles macro for arch-override (bsc#1065729).
  o powerpc: powernv: kABI: add back powernv_get_random_long (bsc#1065729).
  o qed: Add EDPM mode type for user-fw compatibility (git-fixes).
  o qed: fix kABI in qed_rdma_create_qp_in_params (git-fixes).
  o rpm: Fix parsing of rpm/macros.kernel-source on SLE12 (bsc#1201019).
  o scsi: smartpqi: set force_blk_mq=1.(bsc#1179310)
  o spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
  o squashfs: add more sanity checks in id lookup (git-fixes).
  o squashfs: add more sanity checks in inode lookup (git-fixes).
  o squashfs: add more sanity checks in xattr id lookup (git-fixes).
  o squashfs: fix divide error in calculate_skip() (git-fixes).
  o squashfs: fix inode lookup sanity checks (bsc#1203013).
  o squashfs: fix xattr id and id lookup sanity checks (bsc#1203013).
  o tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
  o tracing/perf: Use strndup_user() instead of buggy open-coded version
  o tracing/uprobes: Check the return value of kstrdup() for tu->filename
  o tracing: Fix race in perf_trace_buf initialization (git-fixes).
  o usb: misc: fix improper handling of refcount in uss720_probe() (git-fixes).
  o usbnet: Fix linkwatch use-after-free on disconnect (git-fixes).
  o usbnet: smsc95xx: Fix deadlock on runtime resume (git-fixes).
  o xen/xenbus: fix return type in xenbus_file_read() (git-fixes).
  o xfs: always free inline data before resetting inode fork during ifree (bsc#
  o xfs: check sb_meta_uuid for dabuf buffer recovery (bsc#1202577).
  o xfs: fix NULL pointer dereference in xfs_getbmap() (git-fixes).
  o xprtrdma: Fix trace point use-after-free race (git-fixes).

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-SP5-2022-3282=1

Package List:

  o SUSE Linux Enterprise Server 12-SP5 (noarch):
  o SUSE Linux Enterprise Server 12-SP5 (x86_64):


  o https://www.suse.com/security/cve/CVE-2020-36516.html
  o https://www.suse.com/security/cve/CVE-2021-4203.html
  o https://www.suse.com/security/cve/CVE-2022-20368.html
  o https://www.suse.com/security/cve/CVE-2022-20369.html
  o https://www.suse.com/security/cve/CVE-2022-21385.html
  o https://www.suse.com/security/cve/CVE-2022-2588.html
  o https://www.suse.com/security/cve/CVE-2022-26373.html
  o https://www.suse.com/security/cve/CVE-2022-2639.html
  o https://www.suse.com/security/cve/CVE-2022-29581.html
  o https://www.suse.com/security/cve/CVE-2022-2977.html
  o https://www.suse.com/security/cve/CVE-2022-3028.html
  o https://www.suse.com/security/cve/CVE-2022-36879.html
  o https://bugzilla.suse.com/1054914
  o https://bugzilla.suse.com/1065729
  o https://bugzilla.suse.com/1120716
  o https://bugzilla.suse.com/1179310
  o https://bugzilla.suse.com/1190397
  o https://bugzilla.suse.com/1191881
  o https://bugzilla.suse.com/1194535
  o https://bugzilla.suse.com/1196616
  o https://bugzilla.suse.com/1197158
  o https://bugzilla.suse.com/1199617
  o https://bugzilla.suse.com/1199665
  o https://bugzilla.suse.com/1201019
  o https://bugzilla.suse.com/1201264
  o https://bugzilla.suse.com/1201420
  o https://bugzilla.suse.com/1201442
  o https://bugzilla.suse.com/1201610
  o https://bugzilla.suse.com/1201705
  o https://bugzilla.suse.com/1201726
  o https://bugzilla.suse.com/1201948
  o https://bugzilla.suse.com/1202017
  o https://bugzilla.suse.com/1202096
  o https://bugzilla.suse.com/1202154
  o https://bugzilla.suse.com/1202346
  o https://bugzilla.suse.com/1202347
  o https://bugzilla.suse.com/1202393
  o https://bugzilla.suse.com/1202396
  o https://bugzilla.suse.com/1202528
  o https://bugzilla.suse.com/1202577
  o https://bugzilla.suse.com/1202672
  o https://bugzilla.suse.com/1202830
  o https://bugzilla.suse.com/1202897
  o https://bugzilla.suse.com/1202898
  o https://bugzilla.suse.com/1203013
  o https://bugzilla.suse.com/1203098
  o https://bugzilla.suse.com/1203126

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