CVE-2026-98082 (GCVE-0-2026-98082)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:24 – Updated: 2026-10-19 09:13
VLAI
Title
btrfs: fix the possible bioc_list memory leak during error
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix the possible bioc_list memory leak during error There are two possible ways to leak bioc memory on btrfs_ordered_extent::bioc_list: - An error occurred for btrfs_insert_one_raid_extent() Then the function btrfs_insert_raid_extent() immediately return without freeing any bioc in the bioc_list. - An ordered extent hit an IO error In that case the ordered extent will have BTRFS_ORDERED_IOERR set, and skip the call on btrfs_insert_raid_extent() completely. Fix the problem by: - Introduce a new helper, btrfs_cleanup_ordered_bioc_list() Which will remove all bioc from the bioc_list, and release the bioc. - Call the above helper for btrfs_insert_raid_extent() So that the cleanup helper is always called no matter what. - Call the above helper for btrfs_finish_one_ordered() This is called just before the final release on the ordered extent. This was reported by Sashiko when reviewing another patch.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ab69bf6f8970c09d3735c25094e9471d54365282 , < d043c43d2b4ebcd75ee7f907948ef2847306d6b2 (git)
Affected: 02c372e1f016e5113217597ab37b399c4e407477 , < 83f0c973cffb184d019390ffdb5d31de5c85bc61 (git)
Affected: 02c372e1f016e5113217597ab37b399c4e407477 , < 1b4d4e890c2c85d0f6365b5a08c48b4bbf85deb0 (git)
Affected: 02c372e1f016e5113217597ab37b399c4e407477 , < bb4da45766d16503821f167054db76b735d89e94 (git)
Affected: 02c372e1f016e5113217597ab37b399c4e407477 , < afbe73778338e6d1ac8c4486fbdf33f0cc1f2624 (git)
Affected: 6.6.130 , < 6.6.158 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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