Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.1, < 6.1.28 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/5b4052aa956e11bcd19e50ca559eb38dcb46201bPatch
- https://git.kernel.org/stable/c/7455b7007b9e93bcc2bc9c1c6c73a228e3152069Patch
- https://git.kernel.org/stable/c/934406b2d42eaf3fc57f5546cc68ff7ab9680bb3Patch
- https://git.kernel.org/stable/c/d7d6dacf39ed102d7667721ca1700022c9c8b11aPatch
FAQ
What is CVE-2023-53636?
CVE-2023-53636 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ade...
How severe is CVE-2023-53636?
CVE-2023-53636 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53636?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.