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7.8 High

CVE-2022-48670 In the Linux kernel, the following vulnerability has been resolved: peci: cpu: Fix use-after-free in adev_release() When…

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.

Affected products and versions

Product Affected versions Fixed in
Linux 6.0 earliest → < 6.0 6.0
Linux 5.19 earliest → < 5.19.10 5.19.10
Linux 5.18 No fix stated
linux_kernel Versions not published

References

Timeline

  1. Published
  2. Last modified

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