diff options
Diffstat (limited to 'src/lib/util/png.cpp')
| -rw-r--r-- | src/lib/util/png.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib/util/png.cpp b/src/lib/util/png.cpp index 32ede1be9c1..7a0783cc47f 100644 --- a/src/lib/util/png.cpp +++ b/src/lib/util/png.cpp @@ -250,6 +250,8 @@ public: return PNGERR_UNSUPPORTED_FORMAT; // unknown colour sample format if ((0 != pnginfo.interlace_method) && (1 != pnginfo.interlace_method)) return PNGERR_UNSUPPORTED_FORMAT; // unknown interlace method + if (!pnginfo.bit_depth || (8 % pnginfo.bit_depth)) + return PNGERR_UNSUPPORTED_FORMAT; // bit depth must be a factor of eight // calculate the offset for each pass of the interlace on the input and output unsigned const pass_count(get_pass_count()); |
