jory/upx
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

Only PC-relative relocations get range checked.

Browse Source
This commit is contained in:
John Reiser 2006-08-21 14:26:08 -07:00
parent 0ac2971fc1
commit c8d54b324b
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/linker.cpp
View File

@ -634,17 +634,18 @@ void ElfLinkerX86::relocate1(const Relocation *rel, upx_byte *location,
return super::relocate1(rel, location, value, type);
type += 6;
int range_check = 0;
if (strncmp(type, "PC", 2) == 0)
{
value -= rel->section->offset + rel->offset;
type += 2;
range_check = 1;
}
if (strcmp(type, "8") == 0)
{
int displ = (signed char) *location + (int) value;
if (displ < -127 || displ > 128)
{
if (range_check && (displ < -127 || displ > 128)) {
printf("target out of range (%d) in reloc %s:%x\n",
displ, rel->section->name, rel->offset);
abort();