potrace: multiple (three) NULL pointer dereference in bm_readbody_bmp (bitmap_io.c)

Description: potrace is a utility that transforms bitmaps into vector graphics. A crafted images (bmp) revealed, through a fuzz testing, the presence of three NULL pointer access. The complete ASan output: ASAN:SIGSEGV ================================================================= ==13806==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 … Continue reading potrace: multiple (three) NULL pointer dereference in bm_readbody_bmp (bitmap_io.c)