CVE-2026-89937: iio: chemical: sgp30: Handle IAQ thread creation failure

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-16 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: sgp30: Handle IAQ thread creation failure kthread_run() can fail and return an error pointer, but sgp_probe() stores it and returns success, so the device is registered without its IAQ thread and sgp_remove() later passes the error pointer to kthread_stop(). Return the error from probe instead.

Affected products

Linux kernel: 5.1 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/1135d6875d2dbda3f6ec718f3421a6ce4378bd63
https://git.kernel.org/stable/c/2d386efb4c37a50739db19c7c8e49564fd53a570
https://git.kernel.org/stable/c/3462c13bb0f50dec09235adb7fd04b6f617cf0cc
https://git.kernel.org/stable/c/3c6b52b258e65a584e3f5122ed7f406bc89a946e
https://git.kernel.org/stable/c/44d52c8b1c6da7ac1b0dffeeff6de68370746775
https://git.kernel.org/stable/c/a5aaea17a1834d7254ff597e4d5e1bc60dfc4800
https://git.kernel.org/stable/c/bae0316c087b1ef625844003fe37e803a13819f3
https://git.kernel.org/stable/c/bffd0655a35402b2df8857699f8248e5a534d214

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