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.

Reserved 2024-09-30 | Published 2024-10-21 | Updated 2024-12-19 | Assigner Linux

Product status

Default status
unaffected

c3defd99d58cbdd132bd197714e5523dac976b66 before faeff8b1ee2eaa5969c8e994d66c3337298cefed
affected

c3defd99d58cbdd132bd197714e5523dac976b66 before 297615e992bbb30a55c158141086be6505d5d722
affected

c3defd99d58cbdd132bd197714e5523dac976b66 before a31b712f75445d52fc0451dc54fd7b16a552cb7c
affected

c3defd99d58cbdd132bd197714e5523dac976b66 before ee85e0938aa8f9846d21e4d302c3cf6a2a75110d
affected

Default status
affected

6.5
affected

Any version before 6.5
unaffected

6.6.54
unaffected

6.10.13
unaffected

6.11.2
unaffected

6.12
unaffected

References

git.kernel.org/...c/faeff8b1ee2eaa5969c8e994d66c3337298cefed

git.kernel.org/...c/297615e992bbb30a55c158141086be6505d5d722

git.kernel.org/...c/a31b712f75445d52fc0451dc54fd7b16a552cb7c

git.kernel.org/...c/ee85e0938aa8f9846d21e4d302c3cf6a2a75110d

cve.org (CVE-2024-47700)

nvd.nist.gov (CVE-2024-47700)

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