Divide By Zero Affecting kernel-rt package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELRT-8240991
- published 22 Oct 2024
- disclosed 21 Oct 2024
Introduced: 21 Oct 2024
CVE-2024-47700 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-rt.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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://access.redhat.com/security/cve/CVE-2024-47700
- https://git.kernel.org/stable/c/297615e992bbb30a55c158141086be6505d5d722
- https://git.kernel.org/stable/c/a31b712f75445d52fc0451dc54fd7b16a552cb7c
- https://git.kernel.org/stable/c/ee85e0938aa8f9846d21e4d302c3cf6a2a75110d
- https://git.kernel.org/stable/c/faeff8b1ee2eaa5969c8e994d66c3337298cefed