SB2026020563 - Input validation error in Linux kernel ceph
Published: February 5, 2026
Security Bulletin ID
SB2026020563
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2026-23047)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the calc_target() function in net/ceph/osd_client.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2b3329b3c29d9e188e40d902d5230c2d5989b940
- https://git.kernel.org/stable/c/4d3399c52e0e61720ae898f5a0b5b75d4460ae24
- https://git.kernel.org/stable/c/4ebc711b738d139cabe2fc9e7e7749847676a342
- https://git.kernel.org/stable/c/5647d42c47b535573b63e073e91164d6a5bb058c
- https://git.kernel.org/stable/c/5d0dc83cb9a69c1d0bea58f1c430199b05f6b021
- https://git.kernel.org/stable/c/6f468f6ff233c6a81e0e761d9124e982903fe9a5
- https://git.kernel.org/stable/c/c0fe2994f9a9d0a2ec9e42441ea5ba74b6a16176