Memory leak in Linux kernel - CVE-2026-52962
Published: June 25, 2026
Vulnerability identifier: #VU135416
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2026-52962
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a memory leak in __ceph_setxattr() when retrying extended attribute updates. A local user can trigger repeated setxattr operations to cause a denial of service.
How to mitigate CVE-2026-52962
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/3fa13ceefbc5f36131110342743994cb3de80637
- https://git.kernel.org/stable/c/4bfdcefdaa6092a06cacd59389c7756b36e6de8c
- https://git.kernel.org/stable/c/521e5aba857fd267624892c8dd6295f22ce0267e
- https://git.kernel.org/stable/c/5d3cc36b4e77a27ce7b686b7c59c7072bcb3fa8e
- https://git.kernel.org/stable/c/7d3e8d2d648d5f0df29b4710246680f47695fe94
- https://git.kernel.org/stable/c/bc7abce4460e490dcb579eec770f175b150b685f
- https://git.kernel.org/stable/c/d0cb994605c84a159c1d00d72cdc8583c321ef95
- https://git.kernel.org/stable/c/ecf94823c5c6a20790bb76ed2816822b0beb0c22