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redhatcveRedhat.comRH:CVE-2023-52584
HistoryMar 06, 2024 - 10:38 p.m.

CVE-2023-52584

2024-03-0622:38:21
redhat.com
access.redhat.com
6
cve-2023-52584
linux kernel
uaf vulnerability
spmi: mediatek
device remove
fix
kasan

7.2 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

In the Linux kernel, the following vulnerability has been resolved: spmi: mediatek: Fix UAF on device remove The pmif driver data that contains the clocks is allocated along with spmi_controller. On device remove, spmi_controller will be freed first, and then devres , including the clocks, will be cleanup. This leads to UAF because putting the clocks will access the clocks in the pmif driver data, which is already freed along with spmi_controller. This can be reproduced by enabling DEBUG_TEST_DRIVER_REMOVE and building the kernel with KASAN. Fix the UAF issue by using unmanaged clk_bulk_get() and putting the clocks before freeing spmi_controller.

7.2 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%