Race condition within a thread in Linux kernel - CVE-2022-49967

Vulnerability identifier: #VU111644

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-49967

CWE-ID: CWE-366

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to corrupt data.

The vulnerability exists due to a data race within the pure_initcall() function in kernel/bpf/core.c. A local user can corrupt data.

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Live Patching
kgraft-patch-4_12_14-122_272-default
cluster-md-kmp-default
kernel-default-devel-debuginfo
kernel-default-man
kernel-macros
kernel-devel
kernel-source
dlm-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-default-base
ocfs2-kmp-default
kernel-default
kernel-default-base-debuginfo
gfs2-kmp-default
kernel-syms
cluster-md-kmp-default-debuginfo
kernel-default-devel
kernel-default-debuginfo
kernel-default-kgraft-devel
kernel-default-debugsource
kernel-default-kgraft

Install update from vendor's repository.

Linux kernel - update to 5.19.8
kgraft-patch-4_12_14-122_272-default - update to 1-8.3.1
cluster-md-kmp-default - update to 4.12.14-122.272.1
kernel-default-devel-debuginfo - update to 4.12.14-122.272.1
kernel-default-man - update to 4.12.14-122.272.1
kernel-macros - update to 4.12.14-122.272.1
kernel-devel - update to 4.12.14-122.272.1
kernel-source - update to 4.12.14-122.272.1
dlm-kmp-default - update to 4.12.14-122.272.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.272.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.272.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.272.1
kernel-default-base - update to 4.12.14-122.272.1
ocfs2-kmp-default - update to 4.12.14-122.272.1
kernel-default - update to 4.12.14-122.272.1
kernel-default-base-debuginfo - update to 4.12.14-122.272.1
gfs2-kmp-default - update to 4.12.14-122.272.1
kernel-syms - update to 4.12.14-122.272.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.272.1
kernel-default-devel - update to 4.12.14-122.272.1
kernel-default-debuginfo - update to 4.12.14-122.272.1
kernel-default-kgraft-devel - update to 4.12.14-122.272.1
kernel-default-debugsource - update to 4.12.14-122.272.1
kernel-default-kgraft - update to 4.12.14-122.272.1

• https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29
• https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.8

• Race condition within a thread in Linux kernel bpf
• SUSE update for the Linux Kernel