CVE-2024-47700ext4: check stripe size compatibility on remount as well
- 5.5MediumCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% 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: check stripe size compatibility on remount as well We disable stripe size in __ext4_fill_super if it is not a multiple of the cluster ratio however this check is missed when trying to remount. This can leave us with cases where stripe < cluster_ratio after remount:set making EXT4_B2C(sbi->s_stripe) become 0 that can cause some unforeseen bugs like divide by 0. Fix that by adding the check in remount path as well.
Timeline
ID reserved
By Linux
- 21 days later
· 21 days later
Published
- 19 months later
· 19 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)
- 0.22% · top 87% 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 c3defd99d58cbdd132bd197714e5523dac976b66 – < faeff8b1ee2eaa5969c8e994d66c3337298cefed
- affected c3defd99d58cbdd132bd197714e5523dac976b66 – < 297615e992bbb30a55c158141086be6505d5d722
- affected c3defd99d58cbdd132bd197714e5523dac976b66 – < a31b712f75445d52fc0451dc54fd7b16a552cb7c
- affected c3defd99d58cbdd132bd197714e5523dac976b66 – < ee85e0938aa8f9846d21e4d302c3cf6a2a75110d
- affected 6.5
- unaffected < 6.5
- unaffected 6.6.54 – ≤ 6.6.*
- unaffected 6.10.13 – ≤ 6.10.*
- unaffected 6.11.2 – ≤ 6.11.*
- unaffected 6.12 – ≤ *
References
References4
- https://git.kernel.org/stable/c/faeff8b1ee2eaa5969c8e994d66c3337298cefed (opens in a new tab)
- https://git.kernel.org/stable/c/297615e992bbb30a55c158141086be6505d5d722 (opens in a new tab)
- https://git.kernel.org/stable/c/a31b712f75445d52fc0451dc54fd7b16a552cb7c (opens in a new tab)
- https://git.kernel.org/stable/c/ee85e0938aa8f9846d21e4d302c3cf6a2a75110d (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-2024-42620 (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-2024-47700)Record last updated .