Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: media: streamzap: fix race between device disconnection and urb callback Syzkaller has reported a general protection fault at function ir_raw_event_store_with_filter(). This crash is caused by a NULL pointer dereference of dev->raw pointer, even though it is checked for NULL in the same function, which means there is a race condition. It occurs due to the incorrect order of actions in the streamzap_disconnect() function: rc_unregister_device() is called before usb_kill_urb(). The dev->raw pointer is freed and set to NULL in rc_unregister_device(), and only after that usb_kill_urb() waits for in-progress requests to finish. If rc_unregister_device() is called while streamzap_callback() handler is not finished, this can lead to accessing freed resources. Thus rc_unregister_device() should be called after usb_kill_urb(). Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8e9e60640067858e8036d4d43bbf725c60613359 before e11652a6514ec805440c1bb3739e6c6236fffcc7; affected 8e9e60640067858e8036d4d43bbf725c60613359 before f1d518c0bad01abe83c2df880274cb6a39f4a457; affected 8e9e60640067858e8036d4d43bbf725c60613359 before 30ef7cfee752ca318d5902cb67b60d9797ccd378; affected 8e9e60640067858e8036d4d43bbf725c60613359 before 15483afb930fc2f883702dc96f80efbe4055235e; affected 8e9e60640067858e8036d4d43bbf725c60613359 before adf0ddb914c9e5b3e50da4c97959e82de2df75c3; affected 8e9e60640067858e8036d4d43bbf725c60613359 before 4db62b60af2ccdea6ac5452fd20e29587ed85f57; affected 8e9e60640067858e8036d4d43bbf725c60613359 before 8760da4b9d44c36b93b6e4cf401ec7fe520015bd; affected 8e9e60640067858e8036d4d43bbf725c60613359 before f656cfbc7a293a039d6a0c7100e1c846845148c1 |
| Linux / Linux | affected 2.6.36; unaffected 0 before 2.6.36; unaffected 5.10.237 through 5.10.*; unaffected 5.15.181 through 5.15.*; unaffected 6.1.134 through 6.1.*; unaffected 6.6.87 through 6.6.*; unaffected 6.12.23 through 6.12.*; unaffected 6.13.11 through 6.13.*; unaffected 6.14.2 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e11652a6514ec805440c1bb3739e6c6236fffcc7
- https://git.kernel.org/stable/c/f1d518c0bad01abe83c2df880274cb6a39f4a457
- https://git.kernel.org/stable/c/30ef7cfee752ca318d5902cb67b60d9797ccd378
- https://git.kernel.org/stable/c/15483afb930fc2f883702dc96f80efbe4055235e
- https://git.kernel.org/stable/c/adf0ddb914c9e5b3e50da4c97959e82de2df75c3
- https://git.kernel.org/stable/c/4db62b60af2ccdea6ac5452fd20e29587ed85f57
- https://git.kernel.org/stable/c/8760da4b9d44c36b93b6e4cf401ec7fe520015bd
- https://git.kernel.org/stable/c/f656cfbc7a293a039d6a0c7100e1c846845148c1
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.