CVE-2026-31389

HIGH

spi: fix use-after-free on controller registration failure

Title source: cna

Description

In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free on controller registration failure Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free (of driver resources) and unclocked register accesses.

References (6)

Core 6

Core References

https://git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5ba

https://git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086b

https://git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051

https://git.kernel.org/stable/c/afe27c1f43aa57530011f419be6ddf71306565d2

https://git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7

https://git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9

Scores

CVSS v3 7.8

EPSS 0.0001

EPSS Percentile 3.6%

Attack Vector LOCAL

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

Details

CWE

CWE-416

Status published

Products (17)

Linux/Linux < 6.0

Linux/Linux 6.0

Linux/Linux 6.1.167 - 6.1.*

Linux/Linux 6.12.78 - 6.12.*

Linux/Linux 6.18.20 - 6.18.*

Linux/Linux 6.19.10 - 6.19.*

Linux/Linux 6.6.130 - 6.6.*

Linux/Linux 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 - 0e23f50086da7d0b183dfeac26021acfcdee086b

Linux/Linux 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 - 23b51bad2eb8787aa74324cfccefb258515ae5ba

Linux/Linux 6598b91b5ac32bc756d7c3000a31f775d4ead1c4 - 6bbd385b30c7fb6c7ee0669e9ada91490938c051

... and 7 more

Published Apr 03, 2026

Tracked Since Apr 03, 2026