Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0c7fca880a40a209a9c92be14143996d14b93ff6 before a8bbb2a60513bf322170903c21462f0bf4f62be2; affected 204aa22a686bfee48daca7db620c1e017615f2ff before 715cb86e33cda43f5224cdc3fd5610c0b6a46f7a; affected 204aa22a686bfee48daca7db620c1e017615f2ff before 64b0b5cacbd2fea88001464cb712c9dfc795b26e; affected 300e812b882a174dca675d8028684001ad5826bc; affected 6.18.25 before 6.18.50; affected 7.0.2 before 7.1 |
| Linux / Linux | affected 7.1; unaffected 0 before 7.1; unaffected 6.18.50 through 6.18.*; unaffected 7.2.3 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.