GoogleOSV:CVE-2024-27389CVE-2024-27389
AI Score
Confidence
Low
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. —
References
git.kernel.org/linus/a43e0fc5e9134a46515de2f2f8d4100b74e50de3
git.kernel.org/stable/c/340682ed1932b8e3bd0bfc6c31a0c6354eb57cc6
git.kernel.org/stable/c/4cdf9006fc095af71da80e9b5f48a32e991b9ed3
git.kernel.org/stable/c/a43e0fc5e9134a46515de2f2f8d4100b74e50de3
git.kernel.org/stable/c/cb9e802e49c24eeb3af35e9e8c04d526f35f112a
git.kernel.org/stable/c/db6e5e16f1ee9e3b01d2f71c7f0ba945f4bf0f4e
ubuntu.com/security/CVE-2024-27389
ubuntu.com/security/notices/USN-6816-1
ubuntu.com/security/notices/USN-6817-1
ubuntu.com/security/notices/USN-6817-2
ubuntu.com/security/notices/USN-6817-3
ubuntu.com/security/notices/USN-6878-1
www.cve.org/CVERecord?id=CVE-2024-27389
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