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

btrfs: clear free space tree creation state on rebuild failure

btrfs_rebuild_free_space_tree() sets BTRFS_FS_CREATING_FREE_SPACE_TREE
before rebuilding the free space tree. Several error paths return
without clearing this flag.

The transaction restart failure path can leave the flag set on a live
filesystem, causing delayed reference processing to be skipped. Clear it
on all free space tree rebuild failure paths. Keep
BTRFS_FS_FREE_SPACE_TREE_UNTRUSTED set, since a failed rebuild leaves
the free space tree untrusted. Callers must fall back to extent-tree
caching.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00206.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
882af9f13e830c0a4ef696bb72cd5998a5067a93 affected < a32bedab8ece9d1f90a1476a5b486a1804dc78ba
882af9f13e830c0a4ef696bb72cd5998a5067a93 affected < b1df2997d0cd2be7bef7b4ab64ccfd1019dedc81
882af9f13e830c0a4ef696bb72cd5998a5067a93 affected < 3565893cc72cdf6b795cf6a33e7ff9605322334d
Linux Linux affected
Version Status Constraints
6.14 affected —
0 unaffected < 6.14
6.18.54 unaffected ≤ 6.18.*
7.2.8 unaffected ≤ 7.2.*
7.3-rc4 unaffected ≤ *

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/3565893cc72cdf6b795cf6a33e7ff9605322334d cve-icon cve-icon
https://git.kernel.org/stable/c/a32bedab8ece9d1f90a1476a5b486a1804dc78ba cve-icon cve-icon
https://git.kernel.org/stable/c/b1df2997d0cd2be7bef7b4ab64ccfd1019dedc81 cve-icon cve-icon
History

Tue, 06 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-371
CWE-754

Tue, 06 Oct 2026 09:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: btrfs: clear free space tree creation state on rebuild failure btrfs_rebuild_free_space_tree() sets BTRFS_FS_CREATING_FREE_SPACE_TREE before rebuilding the free space tree. Several error paths return without clearing this flag. The transaction restart failure path can leave the flag set on a live filesystem, causing delayed reference processing to be skipped. Clear it on all free space tree rebuild failure paths. Keep BTRFS_FS_FREE_SPACE_TREE_UNTRUSTED set, since a failed rebuild leaves the free space tree untrusted. Callers must fall back to extent-tree caching.
Title btrfs: clear free space tree creation state on rebuild failure
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-06T08:45:14.120Z

Reserved: 2026-09-25T10:25:14.330Z

Link: CVE-2026-98244

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-06T09:18:12.510

Modified: 2026-10-06T09:18:12.510

Link: CVE-2026-98244

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T13:00:15Z

Weaknesses