VYPR
Medium severity5.5NVD Advisory· Published May 1, 2024· Updated Jun 1, 2026

CVE-2024-27389

CVE-2024-27389

Description

In the Linux kernel, the following vulnerability has been resolved:

pstore: inode: Only d_invalidate() is needed

Unloading a modular pstore backend with records in pstorefs would trigger the dput() double-drop warning:

WARNING: CPU: 0 PID: 2569 at fs/dcache.c:762 dput.part.0+0x3f3/0x410

Using the combo of d_drop()/dput() (as mentioned in Documentation/filesystems/vfs.rst) isn't the right approach here, and leads to the reference counting problem seen above. Use d_invalidate() and update the code to not bother checking for error codes that can never happen.

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Affected products

153

Patches

Vulnerability mechanics

References

6

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