btrfs: fix transaction use-after-free in raid stripe insertion
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction use-after-free in raid stripe insertion If allocation of a RAID stripe extent fails, btrfs_insert_one_raid_extent() aborts and ends the transaction before returning -ENOMEM. btrfs_finish_one_ordered(), the production caller through btrfs_insert_raid_extent(), still owns the transaction handle. It handles the error by aborting the transaction and then reaches the common exit path, which ends the transaction again. The premature end can free the handle and drop its transaction reference. Transaction cleanup can then free the transaction before the caller's second abort accesses the handle and transaction, resulting in use-after-free. Keep the abort at the failure site, but let the caller's common exit path end the transaction once, after it has finished using both objects.
CVE-2026-98083
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98083
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "ab69bf6f8970c09d3735c25094e9471d54365282",
"lessThan": "089d9c45ea49ffffe55a8fe08d0ce2536626e90a",
"versionType": "git"
},
{
"status": "affected",
"version": "02c372e1f016e5113217597ab37b399c4e407477",
"lessThan": "b185bdf30313e213fa1c887fe22fc3d513c061d9",
"versionType": "git"
},
{
"status": "affected",
"version": "02c372e1f016e5113217597ab37b399c4e407477",
"lessThan": "2fbfd02bdfe12b20bd3cc7a3190fb32e3f7072f5",
"versionType": "git"
},
{
"status": "affected",
"version": "02c372e1f016e5113217597ab37b399c4e407477",
"lessThan": "b7b94923b3b5774d85a2a7c8d6eb9e3e0ef66685",
"versionType": "git"
},
{
"status": "affected",
"version": "02c372e1f016e5113217597ab37b399c4e407477",
"lessThan": "a8813a923f9e43f788b357fb55c35f7f6ed6f98c",
"versionType": "git"
},
{
"status": "affected",
"version": "6.6.130",
"lessThan": "6.6.158",
"versionType": "semver"
}
],
"programFiles": [
"fs/btrfs/raid-stripe-tree.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/btrfs/raid-stripe-tree.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98083
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38190 · Revision 1
- Added to Heist Feed
- Publisher date