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.
References
Configurations
Configuration 1 (hide)
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History
06 May 2025, 16:45
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/30ef7cfee752ca318d5902cb67b60d9797ccd378 - Patch | |
| References | () https://git.kernel.org/stable/c/adf0ddb914c9e5b3e50da4c97959e82de2df75c3 - Patch | |
| References | () https://git.kernel.org/stable/c/f656cfbc7a293a039d6a0c7100e1c846845148c1 - Patch | |
| References | () https://git.kernel.org/stable/c/15483afb930fc2f883702dc96f80efbe4055235e - Patch | |
| References | () https://git.kernel.org/stable/c/f1d518c0bad01abe83c2df880274cb6a39f4a457 - Patch | |
| References | () https://git.kernel.org/stable/c/8760da4b9d44c36b93b6e4cf401ec7fe520015bd - Patch | |
| References | () https://git.kernel.org/stable/c/e11652a6514ec805440c1bb3739e6c6236fffcc7 - Patch | |
| References | () https://git.kernel.org/stable/c/4db62b60af2ccdea6ac5452fd20e29587ed85f57 - Patch | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.7 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-476 CWE-362 |
02 May 2025, 07:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
16 Apr 2025, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-04-16 15:15
Updated : 2025-05-06 16:45
NVD link : CVE-2025-22027
Mitre link : CVE-2025-22027
JSON object : View
Products Affected
linux
- linux_kernel