CVE-2022-50622: ext4: fix potential memory leak in ext4_fc_record_modified_inode()

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-08 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_modified_inode() As krealloc may return NULL, in this case 'state->fc_modified_inodes' may not be freed by krealloc, but 'state->fc_modified_inodes' already set NULL. Then will lead to 'state->fc_modified_inodes' memory leak.

Affected products

Linux kernel: 5.10 — fixed in 6.1

How to fix

Upgrade to a fixed version: Linux kernel 6.1. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/24d39affc6be1acf6df86a8c3e2413b8a73749c7
https://git.kernel.org/stable/c/9305721a309fa1bd7c194e0d4a2335bf3b29dca4
https://git.kernel.org/stable/c/9b5eb368a86f97eb9831f5b53b8e43ec69bc7cd4
https://git.kernel.org/stable/c/c0be17635f039f864b1108efec0015c73736e414
https://git.kernel.org/stable/c/c9ce7766dc4e88e624c62a68221a3bbe8f06e856

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