UNKNOWN NVD
CVE-2026-80857
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 pa
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.
References
- https://git.kernel.org/stable/c/64b0b5cacbd2fea88001464cb712c9dfc795b26e
- https://git.kernel.org/stable/c/715cb86e33cda43f5224cdc3fd5610c0b6a46f7a
This unknown severity vulnerability was published on 2026-09-04 via NVD.
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