CVE-2025-37800

Summary

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.

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/18daa52418e7e4629ed1703b64777294209d2622 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/18daa52418e7e4629ed1703b64777294209d2622Patch
• https://git.kernel.org/stable/c/2b344e779d9afd0fcb5ee4000e4d0fc7d8d867ebPatch
• https://git.kernel.org/stable/c/3781e4b83e174364998855de777e184cf0b62c40Patch
• https://git.kernel.org/stable/c/abe56be73eb10a677d16066f65ff9d30251f5eeePatch