SB20260625151 - Integer overflow in Linux kernel target driver
Published: June 25, 2026
Security Bulletin ID
SB20260625151
CSH 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 vulnerability.
1) Integer overflow (CVE-ID: CVE-2026-53021)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 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
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to integer overflow in sbc_execute_unmap() when processing UNMAP requests. A local user can send a crafted UNMAP request to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3
- https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a
- https://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd
- https://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8
- https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb
- https://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a
- https://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e
- https://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4