CVE-2024-47700

ext4: check stripe size compatibility on remount as well

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/faeff8b1ee2eaa5969c8e994d66c3337298cefed patch
https://git.kernel.org/stable/c/297615e992bbb30a55c158141086be6505d5d722 patch
https://git.kernel.org/stable/c/a31b712f75445d52fc0451dc54fd7b16a552cb7c patch
https://git.kernel.org/stable/c/ee85e0938aa8f9846d21e4d302c3cf6a2a75110d patch

Frequently Asked Questions

What is the severity of CVE-2024-47700?
CVE-2024-47700 has been scored as a medium severity vulnerability.
How to fix CVE-2024-47700?
To fix CVE-2024-47700, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-47700 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-47700 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-47700?
CVE-2024-47700 affects Linux Linux, Linux Linux.
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