CVE-2026-98082

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-98082
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98082.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98082
Downstream
Related
Published
2026-09-25T10:24:18Z
Modified
2026-10-09T17:26:58Z
Summary
btrfs: fix the possible bioc_list memory leak during error
Details

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.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98082.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ab69bf6f8970c09d3735c25094e9471d54365282
Fixed
d043c43d2b4ebcd75ee7f907948ef2847306d6b2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
02c372e1f016e5113217597ab37b399c4e407477
Fixed
83f0c973cffb184d019390ffdb5d31de5c85bc61
Fixed
1b4d4e890c2c85d0f6365b5a08c48b4bbf85deb0
Fixed
bb4da45766d16503821f167054db76b735d89e94
Fixed
afbe73778338e6d1ac8c4486fbdf33f0cc1f2624
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6.6.130
Fixed
6.6.158

Affected versions

v6.*
v6.6.130
v6.6.131
v6.6.132
v6.6.133
v6.6.134
v6.6.135
v6.6.136
v6.6.137
v6.6.138
v6.6.139
v6.6.140
v6.6.141
v6.6.142
v6.6.143
v6.6.144
v6.6.145
v6.6.146
v6.6.147
v6.6.148
v6.6.149
v6.6.150
v6.6.151
v6.6.152
v6.6.153
v6.6.154
v6.6.155
v6.6.156
v6.6.157

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98082.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.6.158
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.111
Fixed
6.18.53
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
7.2.7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98082.json"