CVE-2026-45974btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found If btrfs_search_slot_for_read() returns 1, it means we did not find any key greater than or equals to the key we asked for, meaning we have reached the end of the tree and therefore the path is not valid. If this happens we need to break out of the loop and stop, instead of continuing and accessing an invalid path.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < 023545e272f369d487e6a986c1e321c6e04be1da
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < fd4913a53e3b54ad7e161847291439fe445d6356
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < b5b8ade9da452086e78f5d519b90d3769e354853
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < 1ee1d006c9fe4d6be5527ab1c84216b80cccbe40
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < 0761447f6f51e1c7997960d8e6559337deed6729
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < d7cf2314dd5e8661c05d076cd627eea9a7f76616
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < b2bd557b75b760e4b9d209112bda19314bd64558
- affected 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 – < ecb7c2484cfc83a93658907580035a8adf1e0a92
- affected ecce1be9f2a366990d0e75dd249fb324e83c34a9
- affected 5.9.7 – < 5.10
- affected 5.10
- unaffected < 5.10
- unaffected 5.10.252 – ≤ 5.10.*
- unaffected 5.15.202 – ≤ 5.15.*
- unaffected 6.1.165 – ≤ 6.1.*
- unaffected 6.6.128 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.14 – ≤ 6.18.*
- unaffected 6.19.4 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/023545e272f369d487e6a986c1e321c6e04be1da (opens in a new tab)
- https://git.kernel.org/stable/c/fd4913a53e3b54ad7e161847291439fe445d6356 (opens in a new tab)
- https://git.kernel.org/stable/c/b5b8ade9da452086e78f5d519b90d3769e354853 (opens in a new tab)
- https://git.kernel.org/stable/c/1ee1d006c9fe4d6be5527ab1c84216b80cccbe40 (opens in a new tab)
- https://git.kernel.org/stable/c/0761447f6f51e1c7997960d8e6559337deed6729 (opens in a new tab)
- https://git.kernel.org/stable/c/d7cf2314dd5e8661c05d076cd627eea9a7f76616 (opens in a new tab)
- https://git.kernel.org/stable/c/b2bd557b75b760e4b9d209112bda19314bd64558 (opens in a new tab)
- https://git.kernel.org/stable/c/ecb7c2484cfc83a93658907580035a8adf1e0a92 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32258 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-45974)Record last updated .