Description
In the Linux kernel, the following vulnerability has been resolved:
fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
The abort_on_kill path in request_wait_answer() calls fuse_abort_conn() and returns without waiting for FR_FINISHED. If fuse_dev_do_write() is concurrently processing the same request (FR_LOCKED set), the caller frees req->args while it is still being accessed, causing a use-after-free.
Fix this by jumping to the existing wait_event(FR_FINISHED) instead of returning early. The wait will not hang because fuse_abort_conn() ensures all requests are ended.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 0c7fca880a40a209a9c92be14143996d14b93ff6, < a8bbb2a60513bf322170903c21462f0bf4f62be2; >= 204aa22a686bfee48daca7db620c1e017615f2ff, < 715cb86e33cda43f5224cdc3fd5610c0b6a46f7a; >= 204aa22a686bfee48daca7db620c1e017615f2ff, < 64b0b5cacbd2fea88001464cb712c9dfc795b26e; 300e812b882a174dca675d8028684001ad5826bc; >= 6.18.25, < 6.18.50; >= 7.0.2, < 7.1 |
| Linux | Linux | 7.1 |
References
Timeline
- Published
- Sep 4, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received