CVE-2025-21882 — Missing Release of Memory after Effective Lifetime in Linux

CWE-401 — Missing Release of Memory after Effective LifetimeCWE-772 — Missing Release of Resource after Effective Lifetime5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.1%
top 77.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedMar 27

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix vport QoS cleanup on error When enabling vport QoS fails, the scheduling node was never freed, causing a leak. Add the missing free and reset the vport scheduling node pointer to NULL.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶NVDlinux/linux_kernel6.13 — 6.13.6+1
▶CVEListV5linux/linuxbe034baba83e2a80a0b2c0f24c08547b6eedc79a — fead368502bce0e10bea7c0d2895b2fa0c6c10aa+2
▶debiandebian/linux

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2025-21882: In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix vport QoS cleanup on error When enabling vport QoS fails, the schedu↗2025-03-27
▶
GHSA
GHSA-mrwq-3cq2-5j36: In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix vport QoS cleanup on error When enabling vport QoS fails, the sche↗2025-03-27
▶

📋Vendor Advisories

2
Red Hat
kernel: net/mlx5: Fix vport QoS cleanup on error↗2025-03-27
▶
Debian
CVE-2025-21882: linux - In the Linux kernel, the following vulnerability has been resolved: net/mlx5: F...↗2025
▶
CVE-2025-21882 — Linux vulnerability | cvebase