Fix memory leak in tiffcrop.c
Hi:
I found memory leak in file tools/tiffcrop.c.
ASAN:
==931446==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 35 byte(s) in 1 object(s) allocated from:
#0 0x495ded in malloc (/usr/local/bin/tiffcrop+0x495ded)
#1 0x4da427 in limitMalloc /root/gitlab/libtiff/tools/tiffcrop.c:709:12
#2 0x4da427 in loadImage /root/gitlab/libtiff/tools/tiffcrop.c:7113:26
#3 0x4cb586 in main /root/gitlab/libtiff/tools/tiffcrop.c:2782:17
#4 0x7f9d21e48082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082)
SUMMARY: AddressSanitizer: 35 byte(s) leaked in 1 allocation(s).
Steps to reproduce:
- CC=afl-clang-fast CXX=afl-clang-fast++ CFLAGS="-g -O0 -fsanitize=address,leak -fno-omit-frame-pointer" CXXFLAGS="-g -O0 -fsanitize=address,leak -fno-omit-frame-pointer" ./configure --disable-shared
- make & make install
- /usr/local/bin/tiffcrop poc /tmp/foo
poc: poc
This modification fixes the problem
Edited by xiaoxiaoafeifei