#VU122393 Input validation error in Linux kernel - CVE-2026-23047
Published: February 5, 2026
Vulnerability identifier: #VU122393
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23047
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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 repository.
External links
- 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