Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98082

btrfs: fix the possible bioc_list memory leak during error

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • ab69bf6f8970c09d3735c25094e9471d54365282 to < d043c43d2b4ebcd75ee7f907948ef2847306d6b2affected
  • 02c372e1f016e5113217597ab37b399c4e407477 to < 83f0c973cffb184d019390ffdb5d31de5c85bc61affected
  • 02c372e1f016e5113217597ab37b399c4e407477 to < 1b4d4e890c2c85d0f6365b5a08c48b4bbf85deb0affected
  • 02c372e1f016e5113217597ab37b399c4e407477 to < bb4da45766d16503821f167054db76b735d89e94affected
  • 02c372e1f016e5113217597ab37b399c4e407477 to < afbe73778338e6d1ac8c4486fbdf33f0cc1f2624affected
  • 6.6.130 to < 6.6.158affected

Linux Linux

Default version status: affected

  • 6.7affected
  • 0 to < 6.7unaffected
  • 6.6.158 to ≤ 6.6.*unaffected
  • 6.12.111 to ≤ 6.12.*unaffected
  • 6.18.53 to ≤ 6.18.*unaffected
  • 7.2.7 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References