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THREAT OPS › Threat News › [NVD] CVE-2026-63796 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject oversized group bitmap descriptors ocfs2_validate_gd_parent() only bounds bg_bits against the parent allocator's chain geometry. A malicious descriptor can still claim a bg_size/bg_bits pair that

[NVD] CVE-2026-63796 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject oversized group bitmap descriptors ocfs2_validate_gd_parent() only bounds bg_bits against the parent allocator's chain geometry. A malicious descriptor can still claim a bg_size/bg_bits pair that

mednvdPublished 2026-07-19

CVE-2026-63796 CVSS: 8.8 HIGH Published: 2026-07-19T12:16:52.033

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

ocfs2: reject oversized group bitmap descriptors

ocfs2_validate_gd_parent() only bounds bg_bits against the parent allocator's chain geometry. A malicious descriptor can still claim a bg_size/bg_bits pair that exceeds the bitmap bytes that physically fit in the g

Indicators of compromise

CVE-2026-63796cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-63796