CVE-2023-53636

linux: In the Linux kernel, the following vulnerability has been resolved: clk: microchip: fix potential UAF in auxdev rele...

CVE-2023-53636 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53636, released October 7, 2025. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0021
10th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 12.15 (bookworm) 6.1.37-1 DEBIAN-CVE-2023-53636 Oct 7, 2025
linux · Debian 13.5 (trixie) 6.3.7-1 DEBIAN-CVE-2023-53636 Oct 7, 2025
linux · Debian 14 6.3.7-1 DEBIAN-CVE-2023-53636 Oct 7, 2025

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