CVE-2022-48670

High

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedMay 3, 2024
First seenMay 3, 2024

How to fix

Update
  • linux linux_kernel5.19.10 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel5.18 ≤ v < 5.19.10, 6.05.19.10

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CVE-2022-48670 · Linux Kernel · Dark Radar