CVE-2026-31487
MEDIUMAttack Surface
CVSS Vector Breakdown
Description
In the Linux kernel, the following vulnerability has been resolved: spi: 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] Also note that we do not enable the driver_override feature of struct bus_type, as SPI - in contrast to most other buses - passes "" to sysfs_emit() when the driver_override pointer is NULL. Thus, printing "\n" instead of "(null)\n".
Weakness Classification (1)
Affected Software (15)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 5039563e7c25eccd7fec1de6706011009d1c5665 < 6e8eb467bed6aa1a563dba8f366c9fd76ba0004e |
| Linux | Linux | 5039563e7c25eccd7fec1de6706011009d1c5665 < eedf220442d13b6d97294e5b0ac8a2c38ee1a1a0 |
| Linux | Linux | 5039563e7c25eccd7fec1de6706011009d1c5665 < c73a58661a760373d08a6883af4f0bb5cc991a67 |
| Linux | Linux | 5039563e7c25eccd7fec1de6706011009d1c5665 < e0ae367a2de06c49aa1de6ec9b1ab6860bbb2cf0 |
| Linux | Linux | 5039563e7c25eccd7fec1de6706011009d1c5665 < cc34d77dd48708d810c12bfd6f5bf03304f6c824 |
| Linux | Linux | 4.20 |
| linux | linux_kernel | 4.20.1 – 6.12.80 |
| linux | linux_kernel | 4.20 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |