Description
In the Linux kernel, the following vulnerability has been resolved:
media: video-i2c: fix kthread error pointer left in kthread_vid_cap on failure
kthread_run() returns an ERR_PTR on failure, not NULL. When start_streaming() fails, data->kthread_vid_cap is left holding this error pointer instead of being cleared.
This causes two subsequent bugs: 1. A future call to start_streaming() sees a non-NULL kthread_vid_cap and returns 0 (success) immediately, without actually starting the capture thread. 2. A call to stop_streaming() checks 'kthread_vid_cap == NULL' which is false for an error pointer, and proceeds to call kthread_stop() on the error pointer, leading to a kernel crash.
Fix this by resetting kthread_vid_cap to NULL on failure before jumping to the error path.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < db0f4531aa55cfb0171684ebfffe3ff04b79d5a8; >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < 0fac63cac6689588da530764ccb6ba55ee8e4d8b; >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < 5c35d380bea60503c4fe0986fe1de6a3263282b3; >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < 3d1b10d81fe54852ed953f4129577b733bbd6907; >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < 968c5213e34c48d35febdfd09cf3dc58ad039140; >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < 52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6; >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < 0e7f2cd72a4f9268ee09a13b13f3339e7cc71557; >= 5cebaac609744414463d1ecc28fdecd26c1b9bc1, < 76e379754ba618989f6215be608d5c04774a611d |
| Linux | Linux | 4.18 |
References
- https://git.kernel.org/stable/c/0e7f2cd72a4f9268ee09a13b13f3339e7cc71557
- https://git.kernel.org/stable/c/0fac63cac6689588da530764ccb6ba55ee8e4d8b
- https://git.kernel.org/stable/c/3d1b10d81fe54852ed953f4129577b733bbd6907
- https://git.kernel.org/stable/c/52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6
- https://git.kernel.org/stable/c/5c35d380bea60503c4fe0986fe1de6a3263282b3
- https://git.kernel.org/stable/c/76e379754ba618989f6215be608d5c04774a611d
- https://git.kernel.org/stable/c/968c5213e34c48d35febdfd09cf3dc58ad039140
- https://git.kernel.org/stable/c/db0f4531aa55cfb0171684ebfffe3ff04b79d5a8
Timeline
- Published
- Sep 16, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received