Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix port tear down use-after-free Some drivers for multiport devices access port driver data from completion handlers of shared URBs submitted at attach() or first open() and stopped at disconnect() or last close(), respectively. A simple NULL check before accessing the driver data makes sure that a port state container has at least been allocated, but a completion handler can still race with port tear down. Reorder the disconnect handling so that ports are not deregistered (and their driver data freed) until after all ports have been hung up and the driver disconnect() callback has run so that all I/O has been stopped.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2d93148ab6988cad872e65d694c95e8944e1b626 before e4a6883ad9b4686a5f4bd90ff55a44d7ab65bd3c; affected 2d93148ab6988cad872e65d694c95e8944e1b626 before 60cc9379c3e650d1ebfba4de63f1242537a62a32; affected 2d93148ab6988cad872e65d694c95e8944e1b626 before 5e8980a81af195c49084be5b4c031085b56c7443; affected 2d93148ab6988cad872e65d694c95e8944e1b626 before e80ee74206f260eb1282e7d1339ff146a4a410d0; affected 2d93148ab6988cad872e65d694c95e8944e1b626 before 33c920f7c5952dfc42d1b8ea6efe16b1f0bb0c5b |
| Linux / Linux | affected 2.6.30; unaffected 0 before 2.6.30; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e4a6883ad9b4686a5f4bd90ff55a44d7ab65bd3c
- https://git.kernel.org/stable/c/60cc9379c3e650d1ebfba4de63f1242537a62a32
- https://git.kernel.org/stable/c/5e8980a81af195c49084be5b4c031085b56c7443
- https://git.kernel.org/stable/c/e80ee74206f260eb1282e7d1339ff146a4a410d0
- https://git.kernel.org/stable/c/33c920f7c5952dfc42d1b8ea6efe16b1f0bb0c5b