Use-after-free in Linux kernel - CVE-2022-50384

Vulnerability identifier: #VU115900

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-2022-50384

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 tsi148_dma_list_add() function in drivers/vme/bridges/vme_tsi148.c. A local user can escalate privileges on the system.

Linux kernel
openEuler
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo

Install update from vendor's repository.

Linux kernel - update to 4.19.270
kernel - update to 4.19.90-2510.1.0.0346
bpftool - update to 4.19.90-2510.1.0.0346
bpftool-debuginfo - update to 4.19.90-2510.1.0.0346
kernel-debuginfo - update to 4.19.90-2510.1.0.0346
kernel-debugsource - update to 4.19.90-2510.1.0.0346
kernel-devel - update to 4.19.90-2510.1.0.0346
kernel-source - update to 4.19.90-2510.1.0.0346
kernel-tools - update to 4.19.90-2510.1.0.0346
kernel-tools-debuginfo - update to 4.19.90-2510.1.0.0346
kernel-tools-devel - update to 4.19.90-2510.1.0.0346
perf - update to 4.19.90-2510.1.0.0346
perf-debuginfo - update to 4.19.90-2510.1.0.0346
python2-perf - update to 4.19.90-2510.1.0.0346
python2-perf-debuginfo - update to 4.19.90-2510.1.0.0346
python3-perf - update to 4.19.90-2510.1.0.0346
python3-perf-debuginfo - update to 4.19.90-2510.1.0.0346

• https://git.kernel.org/stable/c/1f5661388f43df3ac106ce93e67d8d22b16a78ff
• https://git.kernel.org/stable/c/357057ee55d3c99a5de5abe8150f7bca04f8e53b
• https://git.kernel.org/stable/c/51c0ad3b7c5b01f9314758335a13f157b05fa56d
• https://git.kernel.org/stable/c/5cc4eea715a3fcf4e516662f736dfee63979465f
• https://git.kernel.org/stable/c/5d2b286eb034af114f67d9967fc3fbc1829bb712
• https://git.kernel.org/stable/c/85db68fc901da52314ded80aace99f8b684c7815
• https://git.kernel.org/stable/c/a45ba33d398a821147d7e5f16ead7eb125e331e2
• https://git.kernel.org/stable/c/cf138759a7e92c75cfc1b7ba705e4108fe330edf
• https://git.kernel.org/stable/c/e6b0adff99edf246ba1f8d464530a0438cb1cbda
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270

• Use-after-free in Linux kernel vme bridges driver
• openEuler 20.03 LTS SP4 update for kernel