Bug 2402228 (CVE-2022-50519)

Summary: CVE-2022-50519 kernel: nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure
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 16:04:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure

If creation or finalization of a checkpoint fails due to anomalies in the
checkpoint metadata on disk, a kernel warning is generated.

This patch replaces the WARN_ONs by nilfs_error, so that a kernel, booted
with panic_on_warn, does not panic.  A nilfs_error is appropriate here to
handle the abnormal filesystem condition.

This also replaces the detected error codes with an I/O error so that
neither of the internal error codes is returned to callers.
Comment 1 Jon Moroney 2025-10-07 17:46:32 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100704-CVE-2022-50519-4c44@gregkh/T