Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: debugfs: fix wait/cancellation handling during remove Ben Greear further reports deadlocks during concurrent debugfs remove while files are being accessed, even though the code in question now uses debugfs cancellations. Turns out that despite all the review on the locking, we missed completely that the logic is wrong: if the refcount hits zero we can finish (and need not wait for the completion), but if it doesn't we have to trigger all the cancellations. As written, we can _never_ get into the loop triggering the cancellations. Fix this, and explain it better while at it.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.7.1, < 6.7.12 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/3d08cca5fd0aabb62b7015067ab40913b33da906Patch
- https://git.kernel.org/stable/c/952c3fce297f12c7ff59380adb66b564e2bc9b64Patch
- https://git.kernel.org/stable/c/e88b5ae01901c4a655a53158397746334778a57bPatch
- https://git.kernel.org/stable/c/3d08cca5fd0aabb62b7015067ab40913b33da906Patch
- https://git.kernel.org/stable/c/952c3fce297f12c7ff59380adb66b564e2bc9b64Patch
- https://git.kernel.org/stable/c/e88b5ae01901c4a655a53158397746334778a57bPatch
FAQ
What is CVE-2024-35793?
CVE-2024-35793 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: debugfs: fix wait/cancellation handling during remove Ben Greear further reports deadlocks during concurrent debugfs remove while ...
How severe is CVE-2024-35793?
CVE-2024-35793 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-2024-35793?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.