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THREAT OPSThreat News › [NVD] CVE-2026-80638 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent [BUG] Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. [CAUSE] When the las

[NVD] CVE-2026-80638 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent [BUG] Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. [CAUSE] When the las

mednvdPublished 2026-08-28

CVE-2026-80638 CVSS: 8.8 HIGH Published: 2026-08-28T08:16:48.720

In the Linux kernel, the following vulnerability has been resolved:

ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent

[BUG] Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write.

[CAUSE] When the last leaf block is removed from a refcount tree, ocfs2_re

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80638