Out-of-bounds write in Linux kernel - CVE-2026-97926
Published: September 28, 2026
Vulnerability identifier: #VU152552
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97926
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause an out-of-bounds memory access.
The vulnerability exists due to improper validation of cylinder group metadata in ufs_read_cylinder() when processing a crafted UFS filesystem image. A remote attacker can provide malformed cylinder group metadata to cause an out-of-bounds memory access.
User interaction is required.
Affected software
Linux kernel
How to mitigate CVE-2026-97926
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3