CVE-2024-47700

medium

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.

References

https://git.kernel.org/stable/c/faeff8b1ee2eaa5969c8e994d66c3337298cefed

https://git.kernel.org/stable/c/ee85e0938aa8f9846d21e4d302c3cf6a2a75110d

https://git.kernel.org/stable/c/a31b712f75445d52fc0451dc54fd7b16a552cb7c

https://git.kernel.org/stable/c/297615e992bbb30a55c158141086be6505d5d722

Details

Source: Mitre, NVD

Published: 2024-10-21

Updated: 2024-10-23

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium