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SUSE: CVE-2021-26931: SUSE Linux Security Advisory

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SUSE: CVE-2021-26931: SUSE Linux Security Advisory

Severity
2
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
Published
02/17/2021
Created
03/11/2021
Added
03/09/2021
Modified
02/13/2023

Description

An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen. Block, net, and SCSI backends consider certain errors a plain bug, deliberately causing a kernel crash. For errors potentially being at least under the influence of guests (such as out of memory conditions), it isn't correct to assume a plain bug. Memory allocations potentially causing such crashes occur only when Linux is running in PV mode, though. This affects drivers/block/xen-blkback/blkback.c and drivers/xen/xen-scsiback.c.

Solution(s)

  • suse-upgrade-kernel-64kb
  • suse-upgrade-kernel-64kb-devel
  • suse-upgrade-kernel-64kb-extra
  • suse-upgrade-kernel-64kb-optional
  • suse-upgrade-kernel-azure
  • suse-upgrade-kernel-azure-base
  • suse-upgrade-kernel-azure-devel
  • suse-upgrade-kernel-debug
  • suse-upgrade-kernel-debug-devel
  • suse-upgrade-kernel-default
  • suse-upgrade-kernel-default-base
  • suse-upgrade-kernel-default-base-rebuild
  • suse-upgrade-kernel-default-devel
  • suse-upgrade-kernel-default-extra
  • suse-upgrade-kernel-default-kgraft
  • suse-upgrade-kernel-default-man
  • suse-upgrade-kernel-default-optional
  • suse-upgrade-kernel-devel
  • suse-upgrade-kernel-devel-azure
  • suse-upgrade-kernel-docs
  • suse-upgrade-kernel-docs-html
  • suse-upgrade-kernel-kvmsmall
  • suse-upgrade-kernel-kvmsmall-devel
  • suse-upgrade-kernel-macros
  • suse-upgrade-kernel-obs-build
  • suse-upgrade-kernel-obs-qa
  • suse-upgrade-kernel-preempt
  • suse-upgrade-kernel-preempt-devel
  • suse-upgrade-kernel-preempt-extra
  • suse-upgrade-kernel-preempt-optional
  • suse-upgrade-kernel-source
  • suse-upgrade-kernel-source-azure
  • suse-upgrade-kernel-source-vanilla
  • suse-upgrade-kernel-syms
  • suse-upgrade-kernel-syms-azure
  • suse-upgrade-kernel-vanilla-base
  • suse-upgrade-kernel-zfcpdump
  • suse-upgrade-kgraft-patch-4_4_121-92_152-default
  • suse-upgrade-kgraft-patch-4_4_180-94_116-default
  • suse-upgrade-kgraft-patch-4_4_180-94_121-default
  • suse-upgrade-kgraft-patch-4_4_180-94_124-default
  • suse-upgrade-kgraft-patch-4_4_180-94_127-default
  • suse-upgrade-kgraft-patch-4_4_180-94_130-default
  • suse-upgrade-kgraft-patch-4_4_180-94_135-default
  • suse-upgrade-kgraft-patch-4_4_180-94_138-default
  • suse-upgrade-kgraft-patch-4_4_180-94_141-default
  • suse-upgrade-reiserfs-kmp-default

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