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CVE PROGRAM SOURCE RECORD4.7 Medium

CVE-2025-22027

media: streamzap: fix race between device disconnection and urb callback

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 8e9e60640067858e8036d4d43bbf725c60613359 to < e11652a6514ec805440c1bb3739e6c6236fffcc7affected
  • 8e9e60640067858e8036d4d43bbf725c60613359 to < f1d518c0bad01abe83c2df880274cb6a39f4a457affected
  • 8e9e60640067858e8036d4d43bbf725c60613359 to < 30ef7cfee752ca318d5902cb67b60d9797ccd378affected
  • 8e9e60640067858e8036d4d43bbf725c60613359 to < 15483afb930fc2f883702dc96f80efbe4055235eaffected
  • 8e9e60640067858e8036d4d43bbf725c60613359 to < adf0ddb914c9e5b3e50da4c97959e82de2df75c3affected
  • 8e9e60640067858e8036d4d43bbf725c60613359 to < 4db62b60af2ccdea6ac5452fd20e29587ed85f57affected
  • 8e9e60640067858e8036d4d43bbf725c60613359 to < 8760da4b9d44c36b93b6e4cf401ec7fe520015bdaffected
  • 8e9e60640067858e8036d4d43bbf725c60613359 to < f656cfbc7a293a039d6a0c7100e1c846845148c1affected

Linux Linux

Default version status: affected

  • 2.6.36affected
  • 0 to < 2.6.36unaffected
  • 5.10.237 to ≤ 5.10.*unaffected
  • 5.15.181 to ≤ 5.15.*unaffected
  • 6.1.134 to ≤ 6.1.*unaffected
  • 6.6.87 to ≤ 6.6.*unaffected
  • 6.12.23 to ≤ 6.12.*unaffected
  • 6.13.11 to ≤ 6.13.*unaffected
  • 6.14.2 to ≤ 6.14.*unaffected
  • 6.15 to ≤ *unaffected

References