CVE-2026-68422
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()
If we have an unexpected reloc_root for our root, we jump to the out label
but never drop the reference we obtained for root, resulting in a leak.
Add a missing btrfs_put_root() call.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
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vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
3 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:49 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/3f586b4c92e4272fcd01bf0db0590b63acf3e85b
Added
Reference
https://git.kernel.org/stable/c/f89df93e8aefa4c1c813f835559f2ac727f79766
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"b3d39b03799600c76c33486e2d29b73a771023db","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"72f673d1c1deb819554d3e7e154f6d84301eb735","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"60a23d4ea169e27403f3bb023bb98036797c0206","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"7591d1727067d6063247901ad25c4bdc4e5695c4","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"ce6050bafb4e33377dc17fcc357736bfc351180c","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2211 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"f89df93e8aefa4c1c813f835559f2ac727f79766","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"3f586b4c92e4272fcd01bf0db0590b63acf3e85b","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"b3d39b03799600c76c33486e2d29b73a771023db","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"72f673d1c1deb819554d3e7e154f6d84301eb735","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"60a23d4ea169e27403f3bb023bb98036797c0206","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"7591d1727067d6063247901ad25c4bdc4e5695c4","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"ce6050bafb4e33377dc17fcc357736bfc351180c","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEq
CVE Modified by kernel.org
8/17/2026 2:17:51 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"b3d39b03799600c76c33486e2d29b73a771023db","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"72f673d1c1deb819554d3e7e154f6d84301eb735","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"60a23d4ea169e27403f3bb023bb98036797c0206","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"7591d1727067d6063247901ad25c4bdc4e5695c4","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"ce6050bafb4e33377dc17fcc357736bfc351180c","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc4","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"b3d39b03799600c76c33486e2d29b73a771023db","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"72f673d1c1deb819554d3e7e154f6d84301eb735","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"60a23d4ea169e27403f3bb023bb98036797c0206","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"7591d1727067d6063247901ad25c4bdc4e5695c4","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"ce6050bafb4e33377dc17fcc357736bfc351180c","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
New CVE Received from kernel.org
8/10/2026 9:20:36 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()
If we have an unexpected reloc_root for our root, we jump to the out label
but never drop the reference we obtained for root, resulting in a leak.
Add a missing btrfs_put_root() call.
Added
Reference
https://git.kernel.org/stable/c/60a23d4ea169e27403f3bb023bb98036797c0206
Added
Reference
https://git.kernel.org/stable/c/72f673d1c1deb819554d3e7e154f6d84301eb735
Added
Reference
https://git.kernel.org/stable/c/7591d1727067d6063247901ad25c4bdc4e5695c4
Added
Reference
https://git.kernel.org/stable/c/b3d39b03799600c76c33486e2d29b73a771023db
Added
Reference
https://git.kernel.org/stable/c/ce6050bafb4e33377dc17fcc357736bfc351180c
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"b3d39b03799600c76c33486e2d29b73a771023db","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"72f673d1c1deb819554d3e7e154f6d84301eb735","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"60a23d4ea169e27403f3bb023bb98036797c0206","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"7591d1727067d6063247901ad25c4bdc4e5695c4","versionType":"git","status":"affected"},{"version":"24213fa46c7080c31d79aa2e3e2f0d9480cab700","lessThan":"ce6050bafb4e33377dc17fcc357736bfc351180c","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/btrfs/relocation.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc4","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68422 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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