SB2026091911 - Out-of-bounds read in Linux kernel ocfs2
Published: September 19, 2026
Security Bulletin ID
SB2026091911
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-90205)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to read memory out of bounds.
The vulnerability exists due to an out-of-bounds read in ocfs2_wipe_inode when processing a corrupted OCFS2 dinode marked with OCFS2_ORPHANED_FL. A local user can cause OCFS2 to process a dinode whose i_orphaned_slot is outside the mounted filesystem slot range to read memory out of bounds.
Remediation
Install update from vendor's website.