CVE-2026-63812 f2fs: fix incorrect FI_NO_EXTENT handling in __destroy_extent_node()

🗓️ 19 Jul 2026 12:02:13Reported by GoogleType

osv

osv🔗 osv.dev👁 3 Views

Reverts extent node destroy race fix; remove node_cnt zero check to avoid stale largest extent.

Reporter	Title	Published	Views	Family All 11
ATTACKERKB	CVE-2026-63812	19 Jul 202612:02	–	attackerkb
CVE	CVE-2026-63812	19 Jul 202612:02	–	cve
Cvelist	CVE-2026-63812 f2fs: fix incorrect FI_NO_EXTENT handling in __destroy_extent_node()	19 Jul 202612:02	–	cvelist
EUVD	EUVD-2026-45478	19 Jul 202612:02	–	euvd
NVD	CVE-2026-63812	19 Jul 202612:16	–	nvd
OSV	DEBIAN-CVE-2026-63812	19 Jul 202612:16	–	osv
OSV	UBUNTU-CVE-2026-63812	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61128	19 Jul 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-63812	21 Jul 202605:13	–	redhatcve
SUSE CVE	SUSE CVE-2026-63812	19 Jul 202617:34	–	susecve

Source	Link
git	www.git.kernel.org/stable/c/1f70ddb28a3c71df124da5fa4040c808116d6bb9
git	www.git.kernel.org/stable/c/20190e498057997532c7f186d081011f18e0a462
git	www.git.kernel.org/stable/c/58a5deb220bcac4c73bf58954c0845644c997487
git	www.git.kernel.org/stable/c/7e4d8f98be63f98856a5176b9188dada6e7ba9ee
git	www.git.kernel.org/stable/c/edf12cbeeeabe799bd2ee21fdb5c336cce6fbad7
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63812.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-63812
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

21 Jul 2026 03:47Current

5.3Medium risk

Vulners AI Score5.3

CVSS 3.17.8

EPSS0.00156

linux kernel extent cache destroy extent node no extent flag filesystem check error