SB2025031253 - Use-after-free in Linux kernel net driver
Published: March 12, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025031253
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-2025-21858)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the geneve_destroy_tunnels() function in drivers/net/geneve.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3ce92ca990cfac88a87c61df3cc0b5880e688ecf
- https://git.kernel.org/stable/c/788dbca056a8783ec063da3c9d49a3a71c76c283
- https://git.kernel.org/stable/c/904e746b2e7fa952ab8801b303ce826a63153d78
- https://git.kernel.org/stable/c/9593172d93b9f91c362baec4643003dc29802929
- https://git.kernel.org/stable/c/da9b0ae47f084014b1e4b3f31f70a0defd047ff3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.17