Out-of-bounds read in Linux kernel - CVE-2022-50221

Vulnerability identifier: #VU111473

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-2022-50221

CWE-ID: CWE-125

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 an out-of-bounds read error within the drm_fb_helper_damage() and drm_fb_helper_memory_range_to_clip() functions in drivers/gpu/drm/drm_fb_helper.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Live Patching
kernel-livepatch-5_14_21-150500_55_113-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_28-debugsource
kernel-livepatch-5_14_21-150500_55_113-default
kernel-default
kernel-default-debuginfo
kernel-default-debugsource
kernel-default-livepatch-devel
kernel-default-livepatch

Install update from vendor's repository.

Linux kernel - addressed in versions 5.19.2, 6.0
kernel-livepatch-5_14_21-150500_55_113-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_28-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_113-default - update to 1-150500.11.3.1
kernel-default - update to 5.14.21-150500.55.113.1
kernel-default-debuginfo - update to 5.14.21-150500.55.113.1
kernel-default-debugsource - update to 5.14.21-150500.55.113.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.113.1
kernel-default-livepatch - update to 5.14.21-150500.55.113.1

• https://git.kernel.org/stable/c/9c49ac792c639dbec0728b513329a32461f72253
• https://git.kernel.org/stable/c/ae25885bdf59fde40726863c57fd20e4a0642183
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0

• Out-of-bounds read in Linux kernel gpu drm driver
• SUSE update for the Linux Kernel