CVE-2025-37968 | iio: light: opt3001: fix deadlock due to concurrent flag access

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.

Published: 2025-05-20 Last update: 2026-05-12 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-37968 is rated Low Risk (31.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.09%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-37968

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-16 0.02% 0.09% +0.07%
2 2025-12-17 0.05% 0.02% -0.03%
3 2025-10-20 — 0.05% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-37968

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2025-37968

GitHub Security Advisory for CVE-2025-37968

GHSA-ggj2-v6c6-rgh4 · Severity: medium — In the Linux kernel, the following vulnerability has been resolved: iio: light: opt3001: fix...

OS Trackers for CVE-2025-37968

vendor priority summary link
debian not yet assigned CVE-2025-37968 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2025-37968
redhat — — https://access.redhat.com/security/cve/CVE-2025-37968
suse medium CVE-2025-37968 severity moderate: SUSE including 416 source package names (15.7.20.5.1:kernel-default-6.4.0-150700.53.6.1, 2.1.3-7.43:kernel-rt-6.4.0-33.1, …), 690 product×package rows across 127 product lines (Container suse/hpc/warewulf4-x86_64/sle-hpc-node, Container suse/sl-micro/6.0/rt-os-container, … (127 product lines)): Fixed 434, Known Affected 231, Known Not Affected 25. https://www.suse.com/security/cve/CVE-2025-37968/
ubuntu medium CVE-2025-37968 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, released 168, ignored 167, needed 44, not-affected 24, needs-triage 2, pending 1. https://ubuntu.com/security/CVE-2025-37968

Affected software / configurations for CVE-2025-37968

Vendor Product Version Raw CPE
linux linux_kernel >= 4.3, < 5.4.299 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.5, < 5.10.243 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.11, < 5.15.192 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.16, < 6.1.151 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.2, < 6.6.105 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.7, < 6.12.30 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.13, < 6.14.7 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2025-37968

URL Tags
https://git.kernel.org/stable/c/1d7def97e7eb65865ccc01bbdf4eb9e6bbe8a5b5 Patch
https://git.kernel.org/stable/c/2c95c8f0959d0a72575eabf2ff888f47ed6d8b77 Patch
https://git.kernel.org/stable/c/748ebd8e61d0bc182c331b8df3887af7285c8a8f Patch
https://git.kernel.org/stable/c/7ca84f6a22d50bf8b31efe9eb05f9859947266d7 Patch
https://git.kernel.org/stable/c/957e8be112636d9bc692917286e81e54bd87decc Patch
https://git.kernel.org/stable/c/a9c56ccb7cddfca754291fb24b108a5350a5fbe9 Patch
https://git.kernel.org/stable/c/e791bf216c9e236b34dabf514ec0ede140cca719 Patch
https://git.kernel.org/stable/c/f063a28002e3350088b4577c5640882bf4ea17ea Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-032379.html
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