SUSE-SU-2022:3408-1

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SUSE-SU-2022:3408-1

Summary: Security update for the Linux Kernel

Details: The SUSE Linux Enterprise 15 SP1 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - 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). - 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-2022-1012: Fixed a memory leak problem that was found in the TCP source port generation algorithm in net/ipv4/tcp.c (bnc#1199482). - CVE-2022-20368: Fixed slab-out-of-bounds access in packet_recvmsg() (bsc#1202346). - CVE-2022-20369: Fixed out of bounds write in v4l2_m2m_querybuf of v4l2-mem2mem.c (bnc#1202347). - CVE-2022-21385: Fixed a flaw in net_rds_alloc_sgs() that allowed unprivileged local users to crash the machine (bnc#1202897). - CVE-2022-2588: Fixed use-after-free in cls_route (bsc#1202096). - CVE-2022-26373: Fixed non-transparent sharing of return predictor targets between contexts in some Intel Processors (bnc#1201726). - CVE-2022-2639: Fixed an integer coercion error that was found in the openvswitch kernel module (bnc#1202154). - CVE-2022-2663: Fixed an issue that was found in nf_conntrack_irc where the message handling could be confused and incorrectly matches the message (bnc#1202097). - 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). - CVE-2022-2977: Fixed reference counting for struct tpm_chip (bsc#1202672). - CVE-2022-3028: Fixed race condition that was found in the IP framework for transforming packets (XFRM subsystem) (bnc#1202898). - 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-2022-39188: Fixed race condition in include/asm-generic/tlb.h where a device driver can free a page while it still has stale TLB entries (bnc#1203107). The following non-security bugs were fixed: - rpm: Fix parsing of rpm/macros.kernel-source on SLE12 (bsc#1201019). - 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). - md/bitmap: do not set sb values if can't pass sanity check (bsc#1197158). - 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). - 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). - tcp: add some entropy in __inet_hash_connect() (bsc#1180153 bsc#1202335). - tcp: change source port randomizarion at connect() time (bsc#1180153 bsc#1202335).

References: https://www.suse.com/support/update/announcement/2022/suse-su-20223408-1/, https://bugzilla.suse.com/1177440, https://bugzilla.suse.com/1180153, https://bugzilla.suse.com/1188944, https://bugzilla.suse.com/1191881, https://bugzilla.suse.com/1194535, https://bugzilla.suse.com/1196616, https://bugzilla.suse.com/1197158, https://bugzilla.suse.com/1199482, https://bugzilla.suse.com/1199665, https://bugzilla.suse.com/1201019, https://bugzilla.suse.com/1201420, https://bugzilla.suse.com/1201705, https://bugzilla.suse.com/1201726, https://bugzilla.suse.com/1201948, https://bugzilla.suse.com/1202096, https://bugzilla.suse.com/1202097, https://bugzilla.suse.com/1202154, https://bugzilla.suse.com/1202335, https://bugzilla.suse.com/1202346, https://bugzilla.suse.com/1202347, https://bugzilla.suse.com/1202393, https://bugzilla.suse.com/1202396, https://bugzilla.suse.com/1202672, https://bugzilla.suse.com/1202897, https://bugzilla.suse.com/1202898, https://bugzilla.suse.com/1203098, https://bugzilla.suse.com/1203107, https://www.suse.com/security/cve/CVE-2020-36516, https://www.suse.com/security/cve/CVE-2021-4203, https://www.suse.com/security/cve/CVE-2022-1012, https://www.suse.com/security/cve/CVE-2022-20368, https://www.suse.com/security/cve/CVE-2022-20369, https://www.suse.com/security/cve/CVE-2022-21385, https://www.suse.com/security/cve/CVE-2022-2588, https://www.suse.com/security/cve/CVE-2022-26373, https://www.suse.com/security/cve/CVE-2022-2639, https://www.suse.com/security/cve/CVE-2022-2663, https://www.suse.com/security/cve/CVE-2022-29581, https://www.suse.com/security/cve/CVE-2022-2977, https://www.suse.com/security/cve/CVE-2022-3028, https://www.suse.com/security/cve/CVE-2022-36879, https://www.suse.com/security/cve/CVE-2022-39188