CVE-2024-56774btrfs: add a sanity check for btrfs root in btrfs_search_slot()
- 5.5MediumCVSS base score
- 0.21%Exploitation in 30 daysEPSS · top 89% 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: add a sanity check for btrfs root in btrfs_search_slot() Syzbot reports a null-ptr-deref in btrfs_search_slot(). The reproducer is using rescue=ibadroots, and the extent tree root is corrupted thus the extent tree is NULL. When scrub tries to search the extent tree to gather the needed extent info, btrfs_search_slot() doesn't check if the target root is NULL or not, resulting the null-ptr-deref. Add sanity check for btrfs root before using it in btrfs_search_slot().
Timeline
ID reserved
By Linux
- 10 days later
· 10 days later
Published
- 16 months later
· 16 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 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)
- 0.21% · top 89% of all CVEs (13 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 42437a6386ffeaaf200731e73d723ea491f3fe7d – < c71d114ef68c95da5a82ec85a721ab31f5bd905b
- affected 42437a6386ffeaaf200731e73d723ea491f3fe7d – < db66fb87c21e8ae724886e6a464dcbac562a64c6
- affected 42437a6386ffeaaf200731e73d723ea491f3fe7d – < 757171d1369b3b47f36932d40a05a0715496dcab
- affected 42437a6386ffeaaf200731e73d723ea491f3fe7d – < 93992c3d9629b02dccf6849238559d5c24f2dece
- affected 42437a6386ffeaaf200731e73d723ea491f3fe7d – < 3ed51857a50f530ac7a1482e069dfbd1298558d4
- affected 5.11
- unaffected < 5.11
- unaffected 5.15.174 – ≤ 5.15.*
- unaffected 6.1.120 – ≤ 6.1.*
- unaffected 6.6.64 – ≤ 6.6.*
- unaffected 6.12.4 – ≤ 6.12.*
- unaffected 6.13 – ≤ *
References
References6
- https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b (opens in a new tab)
- https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6 (opens in a new tab)
- https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab (opens in a new tab)
- https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece (opens in a new tab)
- https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html (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-2024-53417 (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-2024-56774)Record last updated .