SB20260917186 - Numeric Truncation Error in Linux kernel ntfs3
Published: September 17, 2026
Security Bulletin ID
SB20260917186
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Numeric Truncation Error (CVE-ID: CVE-2026-89782)
CWE-ID: CWE-197 - Numeric Truncation Error
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause an out-of-bounds memory access.
The vulnerability exists due to integer truncation in the NTFS3 restart table handling in fs/ntfs3/fslog.c when replaying a crafted NTFS $LogFile. A remote attacker can mount a crafted NTFS image to cause an out-of-bounds memory access.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/111f8d74a19d85942ecbb3aba78f6f3c88e59391
- https://git.kernel.org/stable/c/339e59996ff193adcf1c438cf05f19e753beb3a7
- https://git.kernel.org/stable/c/967a5ff8a614d10126b6d46db1ac040948d6cb42
- https://git.kernel.org/stable/c/aad605a450611e2a7b7cf9dd5724004d39192bfb
- https://git.kernel.org/stable/c/be218a01aadffe33ed4fc73e25276d676ebbd09d
- https://git.kernel.org/stable/c/caa0ec3fc44a13d7c21d78e4722f4f05f87ccf56
- https://git.kernel.org/stable/c/ecde45cd81dc28f5696c312c5ce5a509962e9ab1