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CVE-2025-40205 btrfs: avoid potential out-of-bounds in btrfs_encode_fh()

🗓️ 12 Nov 2025 21:56:35Reported by GoogleType 
osv
 osv🔗 osv.dev👁 1 Views

CVE-2025-40205 fixes out-of-bounds write in btrfs_encode_fh by validating max_len for all cases.

Related
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1297)
9 Dec 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2025-1316)
9 Dec 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-112 (ALASKERNEL-5.10-2026-112)
19 Feb 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-095 (ALASKERNEL-5.15-2025-095)
8 Dec 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-114 (ALASKERNEL-5.4-2025-114)
10 Nov 202500:00
–nessus
Tenable Nessus		Debian dla-4379 : linux-config-6.1 - security update
25 Nov 202500:00
–nessus
Tenable Nessus		Debian dla-4404 : ata-modules-5.10.0-35-armmp-di - security update
12 Dec 202500:00
–nessus
Tenable Nessus		openSUSE 16 Security Update : kernel (openSUSE-SU-2025:20172-1)
24 Dec 202500:00
–nessus
Tenable Nessus		Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2025-28048)
12 Dec 202500:00
–nessus
Tenable Nessus		Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2025-28049)
12 Dec 202500:00
–nessus
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02 Apr 2026 12:48Current
6.4Medium risk
Vulners AI Score6.4
EPSS0.00076
btrfs encode fhout of boundsmax length checkparent root casefid size
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