Use-after-free in Linux kernel - CVE-2022-50616

Vulnerability identifier: #VU119300

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-50616

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the include/linux/regulator/driver.h. A local user can escalate privileges on the system.

Linux kernel
openEuler
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-headers
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo

Install update from vendor's repository.

Linux kernel - update to 6.0.16
kernel - update to 5.10.0-301.0.0.204
bpftool - update to 5.10.0-301.0.0.204
bpftool-debuginfo - update to 5.10.0-301.0.0.204
kernel-debuginfo - update to 5.10.0-301.0.0.204
kernel-debugsource - update to 5.10.0-301.0.0.204
kernel-devel - update to 5.10.0-301.0.0.204
kernel-headers - update to 5.10.0-301.0.0.204
kernel-source - update to 5.10.0-301.0.0.204
kernel-tools - update to 5.10.0-301.0.0.204
kernel-tools-debuginfo - update to 5.10.0-301.0.0.204
kernel-tools-devel - update to 5.10.0-301.0.0.204
perf - update to 5.10.0-301.0.0.204
perf-debuginfo - update to 5.10.0-301.0.0.204
python3-perf - update to 5.10.0-301.0.0.204
python3-perf-debuginfo - update to 5.10.0-301.0.0.204

• https://git.kernel.org/stable/c/8f3cbcd6b440032ebc7f7d48a1689dcc70a4eb98
• https://git.kernel.org/stable/c/b0f25ca1ff9be7abd1679ae7e59a8f25dbffe67a
• https://git.kernel.org/stable/c/cb29811d989bcb7ea81ca111c4b13878b344e086
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16

• Use-after-free in Linux kernel linux regulator
• openEuler 22.03 LTS SP4 update for kernel