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media: staging/intel-ipu3: Fix race condition during set_fmt
commit dccfe25 upstream. Do not modify imgu_pipe->nodes[inode].vdev_fmt.fmt.pix_mp, until the format has been correctly validated. Otherwise, even if we use a backup variable, there is a period of time where imgu_pipe->nodes[inode].vdev_fmt.fmt.pix_mp might have an invalid value that can be used by other functions. Cc: stable@vger.kernel.org Fixes: ad91849 ("media: staging/intel-ipu3: Fix set_fmt error handling") Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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