Use-after-free in Linux kernel - CVE-2022-48867

Vulnerability identifier: #VU96327

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-2022-48867

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 drv_disable_wq() function in drivers/dma/idxd/device.c. A local user can escalate privileges on the system.

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

Install update from vendor's website.

Linux kernel - addressed in versions 6.1.8, 6.2
bpftool - update to 5.10.0-228.0.0.127
python3-perf-debuginfo - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
python3-perf - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
perf-debuginfo - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
perf - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-tools-devel - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-tools-debuginfo - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-tools - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-headers - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-devel - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-debugsource - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-debuginfo - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
bpftool-debuginfo - update to 5.10.0-228.0.0.127
kernel - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-source - addressed in versions 5.10.0-228.0.0.127, 5.10.0-228.0.0.130

• https://git.kernel.org/stable/c/b9e8e3fcfec625fc1c2f68f684448aeeb882625b
• https://git.kernel.org/stable/c/1beeec45f9ac31eba52478379f70a5fa9c2ad005
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.8
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2

• Use-after-free in Linux kernel dma idxd driver
• openEuler 22.03 LTS SP4 update for kernel
• openEuler 22.03 LTS SP3 update for kernel