CVE-2026-45899ext4: drop extent cache when splitting extent fails
- 5.5MediumCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% 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: ext4: drop extent cache when splitting extent fails When the split extent fails, we might leave some extents still being processed and return an error directly, which will result in stale extent entries remaining in the extent status tree. So drop all of the remaining potentially stale extents if the splitting fails.
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 · 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)
- 0.16% · top 95% of all CVEs (12 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 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < 6e54f8dfee359bbd58086c883ea8cffd5312999d
- affected 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < 337506dc652383c80839edb8d8dcdd8ff2129b4f
- affected 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < 2943bdbcdef6f74d4235ad0e57b225104dcad8ab
- affected 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < dc7c9b9d03a59a7fe483574531327e650a4b4adc
- affected 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < 120c6bd7ca9d3e80a968b758cbb3fbd67570f132
- affected 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < 808f3191498f300174523c54cab101e18795ae4e
- affected 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < 31bf37cf53ede8145e2bc62da803d4506da92975
- affected 107a7bd31ac003e42c0f966aa8e5b26947de6024 – < 79b592e8f1b435796cbc2722190368e3e8ffd7a1
- affected 3.12
- unaffected < 3.12
- unaffected 5.10.253 – ≤ 5.10.*
- unaffected 5.15.203 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.130 – ≤ 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/6e54f8dfee359bbd58086c883ea8cffd5312999d (opens in a new tab)
- https://git.kernel.org/stable/c/337506dc652383c80839edb8d8dcdd8ff2129b4f (opens in a new tab)
- https://git.kernel.org/stable/c/2943bdbcdef6f74d4235ad0e57b225104dcad8ab (opens in a new tab)
- https://git.kernel.org/stable/c/dc7c9b9d03a59a7fe483574531327e650a4b4adc (opens in a new tab)
- https://git.kernel.org/stable/c/120c6bd7ca9d3e80a968b758cbb3fbd67570f132 (opens in a new tab)
- https://git.kernel.org/stable/c/808f3191498f300174523c54cab101e18795ae4e (opens in a new tab)
- https://git.kernel.org/stable/c/31bf37cf53ede8145e2bc62da803d4506da92975 (opens in a new tab)
- https://git.kernel.org/stable/c/79b592e8f1b435796cbc2722190368e3e8ffd7a1 (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-2026-32365 (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-2026-45899)Record last updated .