The SUSE Linux Enterprise 12 SP4 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2022-36946: Fixed a denial of service (panic) inside nfqnl_mangle in net/netfilter/nfnetlink_queue.c (bnc#1201940).
- 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).
- CVE-2022-3028: Fixed race condition that was found in the IP framework for transforming packets (XFRM subsystem) (bnc#1202898).
- CVE-2022-2977: Fixed reference counting for struct tpm_chip (bsc#1202672).
- CVE-2022-2639: Fixed an integer coercion error that was found in the openvswitch kernel module (bnc#1202154).
- CVE-2022-26373: Fixed non-transparent sharing of return predictor targets between contexts in some Intel Processors (bnc#1201726).
- CVE-2022-2588: Fixed use-after-free in cls_route (bsc#1202096).
- CVE-2022-21385: Fixed a flaw in net_rds_alloc_sgs() that allowed unprivileged local users to crash the machine (bnc#1202897).
- CVE-2022-20369: Fixed out of bounds write in v4l2_m2m_querybuf of v4l2-mem2mem.c (bnc#1202347).
- CVE-2022-20368: Fixed slab-out-of-bounds access in packet_recvmsg() (bsc#1202346).
- CVE-2022-20166: Fixed possible out of bounds write due to a heap buffer overflow in various methods of kernel base drivers (bnc#1200598).
- 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).
- CVE-2020-36558: Fixed a race condition involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
- CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could have led to a use-after-free (bnc#1201429).
- 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 (bnc#1196616).
The following non-security bugs were fixed:
- cifs: fix error paths in cifs_tree_connect() (bsc#1177440).
- cifs: fix uninitialized pointer in error case in dfs_cache_get_tgt_share (bsc#1188944).
- cifs: report error instead of invalid when revalidating a dentry fails (bsc#1177440).
- cifs: skip trailing separators of prefix paths (bsc#1188944).
- kernel-obs-build: include qemu_fw_cfg (boo#1201705)
- lightnvm: Remove lightnvm implemenation (bsc#1191881 bsc#1201420 ZDI-CAN-17325).
- mm/rmap.c: do not reuse anon_vma if we just want a copy (git-fixes, bsc#1203098).
- mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse (git-fixes, bsc#1203098).
- net_sched: cls_route: disallow handle of 0 (bsc#1202393).
- objtool: Add --backtrace support (bsc#1202396).
- objtool: Add support for intra-function calls (bsc#1202396).
- objtool: Allow no-op CFI ops in alternatives (bsc#1202396).
- objtool: Convert insn type to enum (bsc#1202396).
- objtool: Do not use ignore flag for fake jumps (bsc#1202396).
- objtool: Fix !CFI insn_state propagation (bsc#1202396).
- objtool: Fix ORC vs alternatives (bsc#1202396).
- objtool: Fix sibling call detection (bsc#1202396).
- objtool: Make handle_insn_ops() unconditional (bsc#1202396).
- objtool: Remove INSN_STACK (bsc#1202396).
- objtool: Remove check preventing branches within alternative (bsc#1202396).
- objtool: Rename elf_open() to prevent conflict with libelf from elftoolchain (bsc#1202396).
- objtool: Rename struct cfi_state (bsc#1202396).
- objtool: Rework allocating stack_ops on decode (bsc#1202396).
- objtool: Rewrite alt->skip_orig (bsc#1202396).
- objtool: Set insn->func for alternatives (bsc#1202396).
- objtool: Support conditional retpolines (bsc#1202396).
- objtool: Support multiple stack_op per instruction (bsc#1202396).
- objtool: Track original function across branches (bsc#1202396).
- objtool: Uniquely identify alternative instruction groups (bsc#1202396).
- objtool: Use Elf_Scn typedef instead of assuming struct name (bsc#1202396).
- powerpc/pci: Fix broken INTx configuration via OF (bsc#1172145 ltc#184630 bsc#1200770 ltc#198666).
- powerpc/pci: Remove LSI mappings on device teardown (bsc#1172145 ltc#184630 bsc#1200770 ltc#198666).
- powerpc/pci: Use of_irq_parse_and_map_pci() helper (bsc#1172145 ltc#184630 bsc#1200770 ltc#198666).
- rpm: Fix parsing of rpm/macros.kernel-source on SLE12 (bsc#1201019).