Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: peci: cpu: Fix use-after-free in adev_release() When auxiliary_device_add() returns an error, auxiliary_device_uninit() is called, which causes refcount for device to be decremented and .release callback will be triggered. Because adev_release() re-calls auxiliary_device_uninit(), it will cause use-after-free: [ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15 [ 1269.464007] refcount_t: underflow; use-after-free.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.18, < 5.19.10 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1c11289b34ab67ed080bbe0f1855c4938362d9cfPatch
- https://git.kernel.org/stable/c/c87f1f99e26ea4ae08cabe753ae98e5626bdba89Patch
- https://git.kernel.org/stable/c/1c11289b34ab67ed080bbe0f1855c4938362d9cfPatch
- https://git.kernel.org/stable/c/c87f1f99e26ea4ae08cabe753ae98e5626bdba89Patch
FAQ
What is CVE-2022-48670?
CVE-2022-48670 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: peci: cpu: Fix use-after-free in adev_release() When auxiliary_device_add() returns an error, auxiliary_device_uninit() is called,...
How severe is CVE-2022-48670?
CVE-2022-48670 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-2022-48670?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.