Use-after-free in Linux kernel - CVE-2025-37834

Vulnerability identifier: #VU108790

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-2025-37834

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 mm/vmscan.c. A local user can escalate privileges on the system.

Linux kernel
openEuler
Ubuntu
bpftool
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
kernel
linux (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws (Ubuntu package)

Install update from vendor's website.

Linux kernel - update to 6.14.5
bpftool - update to 4.19.90-2506.2.0.0331
python3-perf-debuginfo - update to 4.19.90-2506.2.0.0331
python3-perf - update to 4.19.90-2506.2.0.0331
python2-perf-debuginfo - update to 4.19.90-2506.2.0.0331
python2-perf - update to 4.19.90-2506.2.0.0331
perf-debuginfo - update to 4.19.90-2506.2.0.0331
perf - update to 4.19.90-2506.2.0.0331
kernel-tools-devel - update to 4.19.90-2506.2.0.0331
kernel-tools-debuginfo - update to 4.19.90-2506.2.0.0331
kernel-tools - update to 4.19.90-2506.2.0.0331
kernel-source - update to 4.19.90-2506.2.0.0331
kernel-devel - update to 4.19.90-2506.2.0.0331
kernel-debugsource - update to 4.19.90-2506.2.0.0331
kernel-debuginfo - update to 4.19.90-2506.2.0.0331
bpftool-debuginfo - update to 4.19.90-2506.2.0.0331
kernel - update to 4.19.90-2506.2.0.0331
linux (Ubuntu package) - addressed in versions 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-azure (Ubuntu package) - update to 6.14.0-1007.7
linux-aws (Ubuntu package) - addressed in versions 6.14.0-1007.7, 6.14.0-1007.7+1

• https://git.kernel.org/stable/c/1b0449544c6482179ac84530b61fc192a6527bfd
• https://git.kernel.org/stable/c/1c9798bf8145a92abf45aa9d38a6406d9eb8bdf0
• https://git.kernel.org/stable/c/912e9f0300c3564b72a8808db406e313193a37ad
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.5

• Use-after-free in Linux kernel mm
• openEuler 20.03 LTS SP4 update for kernel
• Ubuntu update for linux
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws