CVE-2026-63796 ocfs2: reject oversized group bitmap descriptors

🗓️ 19 Jul 2026 12:02:04Reported by GoogleType

osv

osv🔗 osv.dev👁 3 Views

Ocfs2 rejects oversized group bitmap descriptors by adding a physical capacity check.

Reporter	Title	Published	Views	Family All 11
ATTACKERKB	CVE-2026-63796	19 Jul 202612:02	–	attackerkb
CVE	CVE-2026-63796	19 Jul 202612:02	–	cve
Cvelist	CVE-2026-63796 ocfs2: reject oversized group bitmap descriptors	19 Jul 202612:02	–	cvelist
EUVD	EUVD-2026-45462	19 Jul 202612:02	–	euvd
NVD	CVE-2026-63796	19 Jul 202612:16	–	nvd
OSV	DEBIAN-CVE-2026-63796	19 Jul 202612:16	–	osv
OSV	UBUNTU-CVE-2026-63796	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61112	19 Jul 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-63796	21 Jul 202605:13	–	redhatcve
SUSE CVE	SUSE CVE-2026-63796	19 Jul 202617:35	–	susecve

Source	Link
git	www.git.kernel.org/stable/c/296c6a42b1174395935ca4cfe8f393e37b698d54
git	www.git.kernel.org/stable/c/336340a0f8a141df8a4eb21a5a86f8ffb87769f6
git	www.git.kernel.org/stable/c/4cd57ebee395041099fcdfcabb00749ce38d8b27
git	www.git.kernel.org/stable/c/8f9903b0cdbb3155a8899410330b4b4d583a7a5c
git	www.git.kernel.org/stable/c/99c21e7263248c3f084756bfae08163cc5d6c62f
git	www.git.kernel.org/stable/c/9bd541e09dffff27e5bec0f9f45b0228173a5375
git	www.git.kernel.org/stable/c/c5a125eadba05ba421c4b55e68da22b4a40d32b4
git	www.git.kernel.org/stable/c/d2cd59fa848f9f13796ef214d3b1b5ca9a3fe21e
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63796.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-63796

21 Jul 2026 03:46Current

5.4Medium risk

Vulners AI Score5.4

CVSS 3.18.8

EPSS0.00177

group bitmap bitmap descriptor physical capacity bg size bg bits kernel fix ocfs2