Out-of-bounds read in Linux kernel - CVE-2025-38636

Vulnerability identifier: #VU114505

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-2025-38636

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 kernel/trace/rv/rv_trace.h. A local user can perform a denial of service (DoS) attack.

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

Install update from vendor's repository.

python3-perf-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
python3-perf - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
perf-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
perf - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-tools-devel - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-tools-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-tools - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-source - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-headers - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-devel - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-debugsource - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
bpftool-debuginfo - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
bpftool - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel - addressed in versions 6.6.0-127.0.0.113, 6.6.0-127.0.0.125, 6.6.0-129.0.0.127
kernel-extra-modules - update to 6.6.0-129.0.0.127

• https://git.kernel.org/stable/c/0ebc70d973ce7a81826b5c4f55f743e07f5864d9
• https://git.kernel.org/stable/c/7f904ff6e58d398c4336f3c19c42b338324451f7

• Out-of-bounds read in Linux kernel trace rv
• openEuler 24.03 LTS SP1 update for kernel
• openEuler 24.03 LTS update for kernel
• openEuler 24.03 LTS SP2 update for kernel