Riskcovery

CVE-2024-47700

ext4: check stripe size compatibility on remount as well

State
Published
Severity
Not scored
Published
Oct 21, 2024
Updated
May 11, 2026
Reserved
Sep 30, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • c3defd99d58cbdd132bd197714e5523dac976b66 to before faeff8b1ee2eaa5969c8e994d66c3337298cefedAffected
  • c3defd99d58cbdd132bd197714e5523dac976b66 to before 297615e992bbb30a55c158141086be6505d5d722Affected
  • c3defd99d58cbdd132bd197714e5523dac976b66 to before a31b712f75445d52fc0451dc54fd7b16a552cb7cAffected
  • c3defd99d58cbdd132bd197714e5523dac976b66 to before ee85e0938aa8f9846d21e4d302c3cf6a2a75110dAffected
LinuxLinux
  • 6.5Affected
  • before 6.5Not affected
  • 6.6.54 through 6.6.*Not affected
  • 6.10.13 through 6.10.*Not affected
  • 6.11.2 through 6.11.*Not affected
  • 6.12 and laterNot affected

References

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