tree 45f6f700ce621b8027ba1e1da3d2bdcbebf08c9c
parent 36bd1bbd549a4b6dd5ed2e1dbf7fd623c0a9797d
author Sami Boukortt <sboukortt@google.com> 1549977447 +0100
committer Cosmin Truta <ctruta@gmail.com> 1663067493 +0300

Fix a memory leak in png_set_tRNS

This leak was discovered by OSS-Fuzz.

The old structure of the code was along the lines of:

  allocate trans_alpha;
  if (problem) {
    // Jumps away from this function
    png_warning("tRNS chunk has out-of-range samples for bit_depth");
  }
  mark trans_alpha as to-free;

Signed-off-by: Cosmin Truta <ctruta@gmail.com>