Use of uninitialized resource in Linux kernel - CVE-2022-48993

Vulnerability identifier: #VU99081

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-2022-48993

CWE-ID: CWE-908

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 use of uninitialized resource within the fbcon_prepare_logo() function in drivers/video/fbdev/core/fbcon.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Anolis OS
kernel-devel
python3-perf
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-tools
kernel-modules-internal
kernel-modules-extra
kernel-modules
kernel-headers
bpftool
kernel-debug-modules-internal
kernel-debug-modules-extra
kernel-debug-modules
kernel-debug-devel
kernel-debug-core
kernel-debug
kernel-core
kernel

Install update from vendor's website.

Linux kernel - addressed in versions 4.19.269, 5.4.227, 5.10.159, 5.15.83, 6.0.13, 6.1, 6.6
kernel-devel - update to 5.10.134-19
python3-perf - update to 5.10.134-19
perf - update to 5.10.134-19
kernel-tools-libs-devel - update to 5.10.134-19
kernel-tools-libs - update to 5.10.134-19
kernel-tools - update to 5.10.134-19
kernel-modules-internal - update to 5.10.134-19
kernel-modules-extra - update to 5.10.134-19
kernel-modules - update to 5.10.134-19
kernel-headers - update to 5.10.134-19
bpftool - update to 5.10.134-19
kernel-debug-modules-internal - update to 5.10.134-19
kernel-debug-modules-extra - update to 5.10.134-19
kernel-debug-modules - update to 5.10.134-19
kernel-debug-devel - update to 5.10.134-19
kernel-debug-core - update to 5.10.134-19
kernel-debug - update to 5.10.134-19
kernel-core - update to 5.10.134-19
kernel - update to 5.10.134-19

• https://git.kernel.org/stable/c/20e78b7d1c1019789d9754ad9246192916f1a3b4
• https://git.kernel.org/stable/c/9d5126b574c9177ed9ca925e36f85a1e6ce80bd2
• https://git.kernel.org/stable/c/d9b53caf0191cee24afd05ca6c83ed873199b52d
• https://git.kernel.org/stable/c/e70a5724400a841c9857ee3d08dae4d6c53ee40d
• https://git.kernel.org/stable/c/9bbebc6aba72ece39a200c8141f44e68ba883877
• https://git.kernel.org/stable/c/a6a00d7e8ffd78d1cdb7a43f1278f081038c638f
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.269
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.159
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.227
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6

• Use of uninitialized resource in Linux kernel fbdev core driver
• Anolis OS update for kernel:5.10