CVE-2024-47700
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2024-47700
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2024-47700.html
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2025:6966
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 6.11.2-1 |
| debian | sid | fixed | 6.11.2-1 |
| debian | trixie | fixed | 6.11.2-1 |
References
Verify integrity in audit chain (admin only). AS-IS.