media: v4l2-core: fix uninitialized structure fields being returned to userspace
In the case where v4l2_event_dequeue fails the structure ev is not being filled and this garbage data from the stack is being copied to the ev32 structure and being copied back to userspace on the VIDIOC_DQEVENT_TIME32 ioctl. Fix this by ensuring the ev structure is zero'd to ensure uninitialized data is not leaked back. Addresses-Coverity: ("Uninitialized scalar variable") Fixes: 1a6c0b36 ("media: v4l2-core: fix VIDIOC_DQEVENT for time64 ABI") Signed-off-by:Colin Ian King <colin.king@canonical.com> Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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