SB2026052863 - Improper resource shutdown or release in Linux kernel rxrpc
Published: May 28, 2026
Security Bulletin ID
SB2026052863
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper resource shutdown or release (CVE-ID: CVE-2026-46012)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in rxkad_verify_response() when processing RxRPC authentication responses. A local user can trigger the vulnerable code path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/34f61a07e0cdefaecd3ec03bb5fb22215643678f
- https://git.kernel.org/stable/c/852b9d64cea421336579b2de3d1338dfa677e2dd
- https://git.kernel.org/stable/c/861b9a0a1823bf064a7b810d29502a9ef043f40f
- https://git.kernel.org/stable/c/c4b8f32e73eafd4a5076be890c7c8506ec04567c
- https://git.kernel.org/stable/c/c91f33fb8356dedc82bc56ce210f1a5dbee62a52