Memory leak in Linux kernel - CVE-2025-22077

Vulnerability identifier: #VU107651

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-22077

CWE-ID: CWE-401

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 memory leak within the clean_demultiplex_info(), cifs_get_tcp_session(), cifs_crypto_secmech_release(), cifs_put_tcp_session() and generic_ip_connect() functions in fs/smb/client/connect.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
openEuler
python3-perf-debuginfo
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
kernel-headers

Install update from vendor's website.

Linux kernel - addressed in versions 6.6.88, 6.12.25, 6.14.4
python3-perf-debuginfo - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
bpftool - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
bpftool-debuginfo - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-debuginfo - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-debugsource - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-devel - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-source - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-tools - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-tools-debuginfo - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-tools-devel - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
perf - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
perf-debuginfo - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
python2-perf - update to 4.19.90-2605.5.0.0374
python2-perf-debuginfo - update to 4.19.90-2605.5.0.0374
python3-perf - addressed in versions 4.19.90-2605.5.0.0374, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-headers - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150

• https://git.kernel.org/stable/c/95d2b9f693ff2a1180a23d7d59acc0c4e72f4c41
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.25
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.88

• Memory leak in Linux kernel smb client
• openEuler 24.03 LTS SP1 update for kernel
• openEuler 24.03 LTS update for kernel
• openEuler 20.03 LTS SP4 update for kernel