Improper locking in Linux kernel - CVE-2023-54180

Vulnerability identifier: #VU120817

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-54180

CWE-ID: CWE-667

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the repair_io_failure() function in fs/btrfs/extent_io.c. A local user can perform a denial of service (DoS) attack.

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_336-default
gfs2-kmp-default-debuginfo
kernel-default-man
kernel-devel
kernel-macros
kernel-source
kernel-default-devel-debuginfo
dlm-kmp-default
kernel-default-devel
gfs2-kmp-default
ocfs2-kmp-default
dlm-kmp-default-debuginfo
kernel-default-base
kernel-default
cluster-md-kmp-default
cluster-md-kmp-default-debuginfo
kernel-syms
ocfs2-kmp-default-debuginfo
kernel-default-base-debuginfo
kernel-default-debuginfo
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-debugsource

Install update from vendor's repository.

Linux kernel - addressed in versions 6.0.19, 6.1.5, 6.2
kgraft-patch-4_12_14-122_336-default - update to 1-8.3.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.336.1
kernel-default-man - update to 4.12.14-122.336.1
kernel-devel - update to 4.12.14-122.336.1
kernel-macros - update to 4.12.14-122.336.1
kernel-source - update to 4.12.14-122.336.1
kernel-default-devel-debuginfo - update to 4.12.14-122.336.1
dlm-kmp-default - update to 4.12.14-122.336.1
kernel-default-devel - update to 4.12.14-122.336.1
gfs2-kmp-default - update to 4.12.14-122.336.1
ocfs2-kmp-default - update to 4.12.14-122.336.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.336.1
kernel-default-base - update to 4.12.14-122.336.1
kernel-default - update to 4.12.14-122.336.1
cluster-md-kmp-default - update to 4.12.14-122.336.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.336.1
kernel-syms - update to 4.12.14-122.336.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.336.1
kernel-default-base-debuginfo - update to 4.12.14-122.336.1
kernel-default-debuginfo - update to 4.12.14-122.336.1
kernel-default-kgraft-devel - update to 4.12.14-122.336.1
kernel-default-kgraft - update to 4.12.14-122.336.1
kernel-default-debugsource - update to 4.12.14-122.336.1

• https://git.kernel.org/stable/c/53e9d6851b56626885476a2966194ba994f8bb4b
• https://git.kernel.org/stable/c/a7018b40b49c37fb55736499f790ec0d2b381ae4
• https://git.kernel.org/stable/c/d73a27b86fc722c28a26ec64002e3a7dc86d1c07
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.19
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.5
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2

• Improper locking in Linux kernel btrfs
• SUSE update for the Linux Kernel