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Vulnerability CVE-2022-48670
Published: 2024-05-03
| 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. |
References: |
https://git.kernel.org/stable/c/c87f1f99e26ea4ae08cabe753ae98e5626bdba89
https://git.kernel.org/stable/c/1c11289b34ab67ed080bbe0f1855c4938362d9cf
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