SB2025120870 - Use-after-free in Linux kernel tipc
Published: December 8, 2025
Security Bulletin ID
SB2025120870
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-40280)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tipc_net_finalize_work() function in net/tipc/net.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0725e6afb55128be21a2ca36e9674f573ccec173
- https://git.kernel.org/stable/c/499b5fa78d525c4450ebb76db83207db71efea77
- https://git.kernel.org/stable/c/51b8f0ab888f8aa5dfac954918864eeda8c12c19
- https://git.kernel.org/stable/c/5f541300b02ef8b2af34f6f7d41ce617f3571e88
- https://git.kernel.org/stable/c/b2e77c789c234e7fe49057d2ced8f32e2d2c7901
- https://git.kernel.org/stable/c/c92dbf85627b5c29e52d9c120a24e785801716df
- https://git.kernel.org/stable/c/f0104977fed25ebe001fd63dab2b6b7fefad3373
- https://git.kernel.org/stable/c/fdf7c4c9af4f246323ce854e84b6aec198d49f7e