Linux kernel v4l2_subdev_call_state_try Heap Buffer Overflow DoS

The vulnerability of the v4l2subdevcallstatetry function in the include/media/v4l2-subdev.h module of the Linux kernel is related to the lack of memory release after the effective lifespan of the function has ended. Exploiting this vulnerability can allow an attacker to cause a service failure...

media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()

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