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CVE-2023-53636

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CVE-2023-53636

Published: Oct 7, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: clk: microchip: fix potential UAF in auxdev release callback Similar to commit 1c11289b34ab ("peci: cpu: Fix use-after-free in adev_release()"), the auxiliary device is not torn down in the correct order. If auxiliary_device_add() fails, the release callback will be called twice, resulting in a UAF. Due to timing, the auxdev code in this driver "took inspiration" from the aforementioned commit, and thus its bugs too! Moving auxiliary_device_uninit() to the unregister callback instead avoids the issue.

VendorProductVersions

Linux

Linux

affected
b56bae2dd6fda6baf3bb74af3812676eebdd52f2 - < 5b4052aa956e11bcd19e50ca559eb38dcb46201b
affected
b56bae2dd6fda6baf3bb74af3812676eebdd52f2 - < d7d6dacf39ed102d7667721ca1700022c9c8b11a
affected
b56bae2dd6fda6baf3bb74af3812676eebdd52f2 - < 934406b2d42eaf3fc57f5546cc68ff7ab9680bb3
affected
b56bae2dd6fda6baf3bb74af3812676eebdd52f2 - < 7455b7007b9e93bcc2bc9c1c6c73a228e3152069

Linux

Linux

affected
6.1
unaffected
0 - < 6.1
unaffected
6.1.28 - <= 6.1.*
unaffected
6.2.15 - <= 6.2.*
unaffected
6.3.2 - <= 6.3.*

+1 more versions

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