SB2025120497 - Input validation error in Linux kernel scsi driver
Published: December 4, 2025
Security Bulletin ID
SB2025120497
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-2025-40259)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the sg_remove_sfp_usercontext() function in drivers/scsi/sg.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/11eeee00c94d770d4e45364060b5f1526dfe567b
- https://git.kernel.org/stable/c/6983d8375c040bb449d2187f4a57a20de01244fe
- https://git.kernel.org/stable/c/90449f2d1e1f020835cba5417234636937dd657e
- https://git.kernel.org/stable/c/b2c0340cfa25c5c1f65e8590cc1a2dc97d14ef0f
- https://git.kernel.org/stable/c/b343cee5df7e750d9033fba33e96fc4399fa88a5