SB2025040246 - Use-after-free in Linux kernel wireless
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025040246
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-2025-21979)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the cfg80211_dev_free() function in net/wireless/core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0272d4af7f92997541d8bbf4c51918b93ded6ee2
- https://git.kernel.org/stable/c/72d520476a2fab6f3489e8388ab524985d6c4b90
- https://git.kernel.org/stable/c/75d262ad3c36d52852d764588fcd887f0fcd9138
- https://git.kernel.org/stable/c/a5158d67bff06cb6fea31be39aeb319fd908ed8e
- https://git.kernel.org/stable/c/dea22de162058216a90f2706f0d0b36f0ff309fd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.8