Bug 2402229 (CVE-2022-50512)

Summary: CVE-2022-50512 kernel: ext4: fix potential memory leak in ext4_fc_record_regions()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-07 16:04:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ext4: fix potential memory leak in ext4_fc_record_regions()

As krealloc may return NULL, in this case 'state->fc_regions' may not be
freed by krealloc, but 'state->fc_regions' already set NULL. Then will
lead to 'state->fc_regions' memory leak.
Comment 1 Jon Moroney 2025-10-07 17:43:39 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100701-CVE-2022-50512-f95b@gregkh/T