CVE-2026-53115

Summary

In the Linux kernel, the following vulnerability has been resolved:

bus: fsl-mc: use generic driver_override infrastructure

When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF.

Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally.

Note that calling match() from __driver_attach() without the device lock held is intentional. [1]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < 4911b836f35c034c36f102db4ecbe339b38e7d1daffected
LinuxLinux1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < 8139ce66b52a4a5638bfb445b037c07d4abeb08eaffected
LinuxLinux1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < 60bfb563a399c4597dc80588a1109758a8908b97affected
LinuxLinux1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < 6c8dfb0362732bf1e4829867a2a5239fedc592d0affected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux6.12.91 <= 6.12.*unaffected
LinuxLinux6.18.33 <= 6.18.*unaffected
LinuxLinux7.0.10 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References