{"id":"CVE-2026-98082","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix the possible bioc_list memory leak during error\n\nThere are two possible ways to leak bioc memory on\nbtrfs_ordered_extent::bioc_list:\n\n- An error occurred for…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix the possible bioc_list memory leak during error\n\nThere are two possible ways to leak bioc memory on\nbtrfs_ordered_extent::bioc_list:\n\n- An error occurred for…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 02c372e1f016e5113217597ab37b399c4e407477 < 83f0c973cffb184d019390ffdb5d31de5c85bc61","Linux >= 02c372e1f016e5113217597ab37b399c4e407477 < 1b4d4e890c2c85d0f6365b5a08c48b4bbf85deb0","Linux >= 02c372e1f016e5113217597ab37b399c4e407477 < bb4da45766d16503821f167054db76b735d89e94","Linux >= 02c372e1f016e5113217597ab37b399c4e407477 < afbe73778338e6d1ac8c4486fbdf33f0cc1f2624","Linux ab69bf6f8970c09d3735c25094e9471d54365282","Linux >= 6.6.130 < 6.7","Linux 6.7"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:37.730","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98082","references":[{"url":"https://git.kernel.org/stable/c/1b4d4e890c2c85d0f6365b5a08c48b4bbf85deb0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/83f0c973cffb184d019390ffdb5d31de5c85bc61","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/afbe73778338e6d1ac8c4486fbdf33f0cc1f2624","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bb4da45766d16503821f167054db76b735d89e94","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.835Z","slug":"CVE-2026-98082","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix the possible bioc_list memory leak during error\n\nThere are two possible ways to leak bioc memory on\nbtrfs_ordered_extent::bioc_list:\n\n- An error occurred for btrfs_insert_one_raid_extent()\n  Then the function btrfs_insert_raid_extent() immediately return\n  without freeing any bioc in the bioc_list.\n\n- An ordered extent hit an IO error\n  In that case the ordered extent will have BTRFS_ORDERED_IOERR set, and\n  skip the call on btrfs_insert_raid_extent() completely.\n\nFix the problem by:\n\n- Introduce a new helper, btrfs_cleanup_ordered_bioc_list()\n  Which will remove all bioc from the bioc_list, and release the bioc.\n\n- Call the above helper for btrfs_insert_raid_extent()\n  So that the cleanup helper is always called no matter what.\n\n- Call the above helper for btrfs_finish_one_ordered()\n  This is called just before the final release on the ordered extent.\n\nThis was reported by Sashiko when reviewing another patch.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}