CVE-2025-37800

driver core: fix potential NULL pointer dereference in dev_uevent()

Description

In the Linux kernel, the following vulnerability has been resolved: driver core: fix potential NULL pointer dereference in dev_uevent() If userspace reads "uevent" device attribute at the same time as another threads unbinds the device from its driver, change to dev->driver from a valid pointer to NULL may result in crash. Fix this by using READ_ONCE() when fetching the pointer, and take bus' drivers klist lock to make sure driver instance will not disappear while we access it. Use WRITE_ONCE() when setting the driver pointer to ensure there is no tearing.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/abe56be73eb10a677d16066f65ff9d30251f5eee patch
https://git.kernel.org/stable/c/2b344e779d9afd0fcb5ee4000e4d0fc7d8d867eb patch
https://git.kernel.org/stable/c/3781e4b83e174364998855de777e184cf0b62c40 patch
https://git.kernel.org/stable/c/18daa52418e7e4629ed1703b64777294209d2622 patch

Frequently Asked Questions

What is the severity of CVE-2025-37800?
CVE-2025-37800 has been scored as a medium severity vulnerability.
How to fix CVE-2025-37800?
To fix CVE-2025-37800, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-37800 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-37800 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-37800?
CVE-2025-37800 affects Linux Linux, Linux Linux.
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