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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. Reported-by: Jianglei Nie <niejianglei2021@163.com> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220705101501.298395-1-iwona.winiarska@intel.com |
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controller | ||
core.c | ||
cpu.c | ||
device.c | ||
internal.h | ||
Kconfig | ||
Makefile | ||
request.c | ||
sysfs.c |