CVE-2023-53636
clk: microchip: fix potential UAF in auxdev release callback
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 7, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
b56bae2dd6fda6baf3bb74af3812676eebdd52f2 < 5b4052aa956e11bcd19e50ca559eb38dcb46201b b56bae2dd6fda6baf3bb74af3812676eebdd52f2 < d7d6dacf39ed102d7667721ca1700022c9c8b11a b56bae2dd6fda6baf3bb74af3812676eebdd52f2 < 934406b2d42eaf3fc57f5546cc68ff7ab9680bb3 b56bae2dd6fda6baf3bb74af3812676eebdd52f2 < 7455b7007b9e93bcc2bc9c1c6c73a228e3152069
Linux / Linux
6.1
References
git.kernel.org: https://git.kernel.org/stable/c/5b4052aa956e11bcd19e50ca559eb38dcb46201b git.kernel.org: https://git.kernel.org/stable/c/d7d6dacf39ed102d7667721ca1700022c9c8b11a git.kernel.org: https://git.kernel.org/stable/c/934406b2d42eaf3fc57f5546cc68ff7ab9680bb3 git.kernel.org: https://git.kernel.org/stable/c/7455b7007b9e93bcc2bc9c1c6c73a228e3152069