CVE-2026-89871
CVE CVE-2026-89871EUVD EUVD-2026-80471Published 2026-09-16T10:31:39.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <76e379754ba618989f6215be608d5c04774a611d; 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <db0f4531aa55cfb0171684ebfffe3ff04b79d5a8; patch: 7.2.5; patch: 5.15.221; patch: 6.1.188; patch: 6.12.110; patch: 7.3-rc1; 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <0e7f2cd72a4f9268ee09a13b13f3339e7cc71557; 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6; 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <968c5213e34c48d35febdfd09cf3dc58ad039140; patch: 5.10.270; patch: 6.6.157; 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <0fac63cac6689588da530764ccb6ba55ee8e4d8b; patch: 6.18.51; patch: 0; 4.18; 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <5c35d380bea60503c4fe0986fe1de6a3263282b3; 5cebaac609744414463d1ecc28fdecd26c1b9bc1 <3d1b10d81fe54852ed953f4129577b733bbd6907
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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