Resource management error in Linux kernel - CVE-2022-49171

Vulnerability identifier: #VU104911

CSH Severity: Low

CVSS v4 BT: 4.3 [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/E:U/U:Clear]

CVE-ID: CVE-2022-49171

CWE-ID: CWE-399

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 resource management error within the ext4_writepage() and mpage_prepare_extent_to_map() functions in fs/ext4/inode.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_258-default
kernel-default-debuginfo
kernel-default-man
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-source
kernel-macros
kernel-devel
kernel-default
kernel-default-devel
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default
ocfs2-kmp-default
kernel-default-base
kernel-default-devel-debuginfo
kernel-default-debugsource
dlm-kmp-default-debuginfo
kernel-syms
cluster-md-kmp-default-debuginfo
kernel-default-base-debuginfo
cluster-md-kmp-default
gfs2-kmp-default

Install update from vendor's website.

Linux kernel - update to 4.14.276
kgraft-patch-4_12_14-122_258-default - update to 1-8.3.1
kernel-default-debuginfo - update to 4.12.14-122.258.1
kernel-default-man - update to 4.12.14-122.258.1
kernel-default-kgraft - update to 4.12.14-122.258.1
kernel-default-kgraft-devel - update to 4.12.14-122.258.1
kernel-source - update to 4.12.14-122.258.1
kernel-macros - update to 4.12.14-122.258.1
kernel-devel - update to 4.12.14-122.258.1
kernel-default - update to 4.12.14-122.258.1
kernel-default-devel - update to 4.12.14-122.258.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.258.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.258.1
dlm-kmp-default - update to 4.12.14-122.258.1
ocfs2-kmp-default - update to 4.12.14-122.258.1
kernel-default-base - update to 4.12.14-122.258.1
kernel-default-devel-debuginfo - update to 4.12.14-122.258.1
kernel-default-debugsource - update to 4.12.14-122.258.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.258.1
kernel-syms - update to 4.12.14-122.258.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.258.1
kernel-default-base-debuginfo - update to 4.12.14-122.258.1
cluster-md-kmp-default - update to 4.12.14-122.258.1
gfs2-kmp-default - update to 4.12.14-122.258.1

• https://git.kernel.org/stable/c/0d3a6926f7e8be3c897fa46216ce13b119a9f56a
• https://git.kernel.org/stable/c/330d0e44fc5a47c27df958ecdd4693a3cb1d8b81
• https://git.kernel.org/stable/c/343117559ef41e992e326f7a92da1a8f254dfa8c
• https://git.kernel.org/stable/c/5a016c053f426a73752c3b41b60b497b58694d48
• https://git.kernel.org/stable/c/5db60e76edf5680ff1f3a7221036fc44b308f146
• https://git.kernel.org/stable/c/677c9d30e8487bee6c8e3b034070319d98f6e203
• https://git.kernel.org/stable/c/a0856764dc1276ad2dc7891288c2e9246bf11a37
• https://git.kernel.org/stable/c/cc5095747edfb054ca2068d01af20be3fcc3634f
• https://git.kernel.org/stable/c/d666dfaa571465a19f014534a214c255ea33f301
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.276

• Resource management error in Linux kernel ext4
• SUSE update for the Linux Kernel