AZL-67496
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-67496.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-67496
- Upstream
- Published
- 2024-05-01T13:15:51Z
- Modified
- 2026-04-01T05:21:13.289383Z
- Summary
- CVE-2024-27389 affecting package kernel 5.15.200.1-1
- Details
-
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 ddrop()/dput() (as mentioned in Documentation/filesystems/vfs.rst) isn't the right approach here, and leads to the reference counting problem seen above. Use dinvalidate() and update the code to not bother checking for error codes that can never happen.
- References