# CVE-2024-35793: linux: In the Linux kernel, the following vulnerability has been resolved:  debugfs: fix wait/cancellation handling during r...

CVE-2024-35793 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-35793, released May 17, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-35793
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 17, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.7.12-1 | [DEBIAN-CVE-2024-35793](https://patchblox.com/security/data/fix/linux/debian-cve-2024-35793.md) | May 17, 2024 |
| Linux | linux Debian 14 | 6.7.12-1 | [DEBIAN-CVE-2024-35793](https://patchblox.com/security/data/fix/linux/debian-cve-2024-35793.md) | May 17, 2024 |

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