Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: greybus: audio_helper: remove unused and wrong debugfs usage In the greybus audio_helper code, the debugfs file for the dapm has the potential to be removed and memory will be leaked. There is also the very real potential for this code to remove ALL debugfs entries from the system, and it seems like this is what will really happen if this code ever runs. This all is very wrong as the greybus audio driver did not create this debugfs file, the sound core did and controls the lifespan of it. So remove all of the debugfs logic from the audio_helper code as there's no way it could be correct. If this really is needed, it can come back with a fixup for the incorrect usage of the debugfs_lookup() call which is what caused this to be noticed at all.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.10.150 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/4dab0d27a4211a27135a6899d6c737e6e0759a11Patch
- https://git.kernel.org/stable/c/5699afbff1fa2972722e863906c0320d55dd4d58Patch
- https://git.kernel.org/stable/c/d0febad83e29d85bb66e4f5cac0115b022403338Patch
- https://git.kernel.org/stable/c/d517cdeb904ddc0cbebcc959d43596426cac40b0Patch
- https://git.kernel.org/stable/c/d835fa49d9589a780ff0d001bb7e6323238a4afbPatch
FAQ
What is CVE-2022-50400?
CVE-2022-50400 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: staging: greybus: audio_helper: remove unused and wrong debugfs usage In the greybus audio_helper code, the debugfs file for the d...
How severe is CVE-2022-50400?
CVE-2022-50400 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-50400?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.