CVE-2025-37968
In the Linux kernel, the following vulnerability has been resolved: iio: light: opt3001: fix deadlock due to concurrent flag access The threaded IRQ function in this driver is reading the flag twice: once to lock a mutex and once to unlock it.
Does this matter?
Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: iio: light: opt3001: fix deadlock due to concurrent flag access The threaded IRQ function in this driver is reading the flag twice: once to lock a mutex and once to unlock it. Even though the code setting the flag is designed to prevent it, there are subtle cases where the flag could be true at the mutex_lock stage and false at the mutex_unlock stage. This results in the mutex not being unlocked, resulting in a deadlock. Fix it by making the opt3001_irq() code generally more robust, reading the flag into a variable and using the variable value at both stages.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.15% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1d7def97e7eb65865ccc01bbdf4eb9e6bbe8a5b5Patch
- https://git.kernel.org/stable/c/2c95c8f0959d0a72575eabf2ff888f47ed6d8b77Patch
- https://git.kernel.org/stable/c/748ebd8e61d0bc182c331b8df3887af7285c8a8fPatch
- https://git.kernel.org/stable/c/7ca84f6a22d50bf8b31efe9eb05f9859947266d7Patch
- https://git.kernel.org/stable/c/957e8be112636d9bc692917286e81e54bd87deccPatch
- https://git.kernel.org/stable/c/a9c56ccb7cddfca754291fb24b108a5350a5fbe9Patch
- https://git.kernel.org/stable/c/e791bf216c9e236b34dabf514ec0ede140cca719Patch
- https://git.kernel.org/stable/c/f063a28002e3350088b4577c5640882bf4ea17eaPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.