media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try()
v4l2_subdev_call_state_try() macro allocates a subdev state with
__v4l2_subdev_state_alloc(), but does not check the returned value. If
__v4l2_subdev_state_alloc fails, it returns an ERR_PTR, and that would
cause v4l2_subdev_call_state_try() to crash.
Add proper error handling to v4l2_subdev_call_state_try().
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/5b0057459cdc243ffb35617603142dcace09c711https://git.kernel.org/stable/c/94e6336dc1f06a06f5b4cd04d4a012bba34f2857https://git.kernel.org/stable/c/a553530b3314a0bdc98cf114cdbe204551a70a00https://git.kernel.org/stable/c/ed30811fbed40751deb952bde534aa2632dc0bf7https://git.kernel.org/stable/c/f37df9a0eb5e43fcfe02cbaef076123dc0d79c7e