In the Linux kernel, the following vulnerability has been resolved:
media: v4l2-tpg: prevent the risk of a division by zero
As reported by Coverity, the logic at tpgprecalculateline() blindly rescales the buffer even when scaled_witdh is equal to zero. If this ever happens, this will cause a division by zero.
Instead, add a WARNONONCE() to trigger such cases and return without doing any precalculation.