CVE-2023-53636 (GCVE-0-2023-53636)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:19 – Updated: 2026-05-11 19:48
VLAI
Title
clk: microchip: fix potential UAF in auxdev release callback
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6856 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b56bae2dd6fda6baf3bb74af3812676eebdd52f2 , < 5b4052aa956e11bcd19e50ca559eb38dcb46201b (git)
Affected: b56bae2dd6fda6baf3bb74af3812676eebdd52f2 , < d7d6dacf39ed102d7667721ca1700022c9c8b11a (git)
Affected: b56bae2dd6fda6baf3bb74af3812676eebdd52f2 , < 934406b2d42eaf3fc57f5546cc68ff7ab9680bb3 (git)
Affected: b56bae2dd6fda6baf3bb74af3812676eebdd52f2 , < 7455b7007b9e93bcc2bc9c1c6c73a228e3152069 (git)
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Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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      "title": "kernel: clk: microchip: fix potential UAF in auxdev release callback",
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