SB2026061079 - Out-of-bounds write in Linux kernel lib
Published: June 10, 2026
Security Bulletin ID
SB2026061079
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) Out-of-bounds write (CVE-ID: CVE-2026-46289)
CWE-ID: CWE-787 - Out-of-bounds write
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 an out-of-bounds write in extract_kvec_to_sg in lib/scatterlist.c when extracting a kvec into a scatterlist. A local user can trigger the function with crafted kvec data to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/07b7d66e65d9cfe6b9c2c34aa22cfcaac37a5c45
- https://git.kernel.org/stable/c/3f17500e86d730c76db638bb3ae52f9b5e496c76
- https://git.kernel.org/stable/c/8fbba6829057979149d1b37d65690c037f3ddf4d
- https://git.kernel.org/stable/c/9d38756d0a93b66163554219fa9c3365f40c4035
- https://git.kernel.org/stable/c/e5e22fc9963469e678c4f4bb38d26adcec107f1e