Security update for the Linux Kernel

SUSE Security Update: Security update for the Linux Kernel
Announcement ID: SUSE-SU-2022:3294-1
Rating: important
References: #1133374 #1191881 #1196616 #1201420 #1201726 #1201948 #1202096 #1202346 #1202347 #1202393 #1202897 #1202898 #1203098 #1203107
Cross-References:CVE-2019-3900 CVE-2020-36516 CVE-2022-20368 CVE-2022-20369 CVE-2022-21385 CVE-2022-2588 CVE-2022-26373 CVE-2022-2991 CVE-2022-3028 CVE-2022-36879 CVE-2022-39188
Affected Products:
  • SUSE Linux Enterprise Server 12-SP2-BCL

An update that solves 11 vulnerabilities and has three fixes is now available.

Description:


The SUSE Linux Enterprise 12 SP2 kernel was updated receive various security and bugfixes.
The following security bugs were fixed:

  • 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).
  • 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-2022-2991: Fixed an heap-based overflow in the lightnvm implemenation (bsc#1201420).
  • 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-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-2019-3900: Fixed infinite loop the vhost_net kernel module that could result in a DoS scenario (bnc#1133374).

The following non-security bugs were fixed:
  • net_sched: cls_route: Disallowed handle of 0 (bsc#1202393).
  • mm, rmap: Fixed anon_vma->degree ambiguity leading to double-reuse (bsc#1203098).
  • lightnvm: Removed lightnvm implemenation (bsc#1191881).

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:

  • SUSE Linux Enterprise Server 12-SP2-BCL:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2022-3294=1

Package List:

  • SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
    • kernel-default-4.4.121-92.188.1
    • kernel-default-base-4.4.121-92.188.1
    • kernel-default-base-debuginfo-4.4.121-92.188.1
    • kernel-default-debuginfo-4.4.121-92.188.1
    • kernel-default-debugsource-4.4.121-92.188.1
    • kernel-default-devel-4.4.121-92.188.1
    • kernel-syms-4.4.121-92.188.1
  • SUSE Linux Enterprise Server 12-SP2-BCL (noarch):
    • kernel-devel-4.4.121-92.188.1
    • kernel-macros-4.4.121-92.188.1
    • kernel-source-4.4.121-92.188.1

References: