mirror/upx
1
0
Fork 0
mirror of https://github.com/upx/upx synced 2025-09-28 19:06:07 +08:00
Code Issues Releases Wiki Activity

Detect (int)blocksize < 0

Browse Source
This commit is contained in:
John Reiser 2015-05-09 20:13:30 -07:00
parent 83ce7dc62f
commit cdd152d015
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/p_lx_elf.cpp
View File

@ -3014,7 +3014,8 @@ void PackLinuxElf64::unpack(OutputFile *fo)
p_info hbuf; fi->readx(&hbuf, sizeof(hbuf));
unsigned orig_file_size = get_te32(&hbuf.p_filesize);
blocksize = get_te32(&hbuf.p_blocksize);
if (file_size > (off_t)orig_file_size || blocksize > orig_file_size)
if (file_size > (off_t)orig_file_size || blocksize > orig_file_size
|| (int)(blocksize + OVERHEAD) < 0)
throwCantUnpack("p_info corrupted");
ibuf.alloc(blocksize + OVERHEAD);