linux — security advisory
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.
- Products
- linux
- Affected versions
- 6.1.27-1
- Fixed versions
- 6.1.37-1, 6.3.7-1
- CVEs
- CVE-2023-53636
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:16 UTC · Revision 1
Source evidence
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.
osv:DEBIAN-CVE-2023-53636
linux
Fixed versions: 6.1.37-1
linux
Fixed versions: 6.3.7-1
linux
Fixed versions: 6.3.7-1
Complete source record
{
"id": "c0c2f0a5276c316657c7e4d496eebe1a5416f55b0c94737ee78f3c06e71eb35d",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-53636",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-53636",
"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.",
"evidence": "osv:DEBIAN-CVE-2023-53636",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "6.1.27-1",
"evidence": "/affected/0/versions"
}
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},
{
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"severity": "high",
"structured": {
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"aliases": [
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"metrics": [
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}
],
"affected": [
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"ecosystem": "Debian:12"
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"versions": [
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"database_specific": {
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"ecosystem_specific": {
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}
},
{
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"package": {
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"ecosystem": "Debian:13"
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"package": {
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"ecosystem": "Debian:14"
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"database_specific": {
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},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:02:55.043055638Z",
"provider": "osv",
"upstream": [
"CVE-2023-53636"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-53636"
]
},
"related_cves": [
{
"value": "CVE-2023-53636",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 457202,
"published_at": "2025-10-07T16:15:46.763+00:00"
}