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Code Issues Releases Wiki Activity

More care when recovering from slid b_info

Browse Source 
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65531
https://github.com/upx/upx/issues/762
	modified:   p_lx_elf.cpp
This commit is contained in:
John Reiser 2024-01-10 13:38:18 -08:00 committed by Markus F.X.J. Oberhumer
parent f310ce376e
commit d549c2b5c9
1 changed files with 2 additions and 1 deletions
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3
src/p_lx_elf.cpp
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@ -7405,7 +7405,8 @@ void PackLinuxElf64::unpack(OutputFile *fo)
}
}
int boff = find_le32(peek_arr, sizeof(peek_arr), size);
if (boff < 0) {
if (boff < 0
|| sizeof(peek_arr) < (boff + sizeof(b_info))) {
throwCantUnpack("b_info corrupted");
}
bp = (b_info *)(void *)&peek_arr[boff];