CVE - CVE-2024-35793

CVE-ID
CVE-2024-35793	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/3d08cca5fd0aabb62b7015067ab40913b33da906 URL:https://git.kernel.org/stable/c/3d08cca5fd0aabb62b7015067ab40913b33da906 MISC:https://git.kernel.org/stable/c/952c3fce297f12c7ff59380adb66b564e2bc9b64 URL:https://git.kernel.org/stable/c/952c3fce297f12c7ff59380adb66b564e2bc9b64 MISC:https://git.kernel.org/stable/c/e88b5ae01901c4a655a53158397746334778a57b URL:https://git.kernel.org/stable/c/e88b5ae01901c4a655a53158397746334778a57b
Assigning CNA
kernel.org
Date Record Created
20240517	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240517)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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