USN-8850-1: Linux kernel (BlueField) vulnerabilities
Ubuntu patches Linux kernel BlueField vulnerabilities across NFS server, OCFS2, IPv6, Netfilter, and SCTP subsystems in USN-8850-1.
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CVE-2026-53309
- CVSS 3.1
- 9.8 critical
- EPSS
- <1%p33
- Published
- ·
- Modified
Description · NVD
In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison The local-vs-remote region comparison loop uses '<=' instead of '<', causing it to read one entry past the valid range of qr_regions. The other loops in the same function correctly use '<'. Fix the loop condition to use '<' for consistency and correctness.
In the news
3 storiesUSN-8725-2: Linux kernel (AWS) vulnerabilities
Ubuntu updates the AWS Linux kernel in USN-8725-2, fixing eight CVEs including issues in NFS, OCFS2, Netfilter, SCTP, and B.A.T.M.A.N. subsystems.
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USN-8714-3: Linux kernel vulnerabilities
Ubuntu issues USN-8714-3 updating the generic Linux kernel to fix five CVEs affecting the OCFS2 file system and SCTP protocol.
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