CVE-2023-53636

HIGH EPSS 8.2%
Published Oct 7, 20258mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
8.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.1  –  <6.1.28
linuxlinux_kernel*≥6.2  –  <6.2.15
linuxlinux_kernel*≥6.3  –  <6.3.2

References 4

  • git.kernel.org https://git.kernel.org/stable/c/5b4052aa956e11bcd19e50ca559eb38dcb46201b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7455b7007b9e93bcc2bc9c1c6c73a228e3152069
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/934406b2d42eaf3fc57f5546cc68ff7ab9680bb3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d7d6dacf39ed102d7667721ca1700022c9c8b11a
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5b4052aa956e11bcd19e50ca559eb38dcb46201b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7455b7007b9e93bcc2bc9c1c6c73a228e3152069
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/934406b2d42eaf3fc57f5546cc68ff7ab9680bb3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d7d6dacf39ed102d7667721ca1700022c9c8b11a
    Patch