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Code Issues Releases Wiki Activity

8 bit relocation overflow detection added to ElfLinker

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This commit is contained in:
László Molnár 2006-07-17 16:58:24 +02:00
parent e881e008b8
commit 4c87e11aeb
1 changed files with 18 additions and 0 deletions
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18
src/linker.cpp
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@ -787,7 +787,16 @@ void ElfLinkerX86::relocate1(Relocation *rel, upx_byte *location,
}
if (strcmp(type, "8") == 0)
{
int displ = (char) *location + (int) value;
if (displ < -127 || displ > 128)
{
printf("target out of range (%d) in reloc %s:%x\n",
displ, rel->section->name, rel->offset);
abort();
}
*location += value;
}
else if (strcmp(type, "16") == 0)
set_le16(location, get_le16(location) + value);
else if (strcmp(type, "32") == 0)
@ -810,7 +819,16 @@ void ElfLinkerAMD64::relocate1(Relocation *rel, upx_byte *location,
}
if (strcmp(type, "8") == 0)
{
int displ = (char) *location + (int) value;
if (displ < -127 || displ > 128)
{
printf("target out of range (%d) in reloc %s:%x\n",
displ, rel->section->name, rel->offset);
abort();
}
*location += value;
}
else if (strcmp(type, "16") == 0)
set_le16(location, get_le16(location) + value);
else if (strcmp(type, "32") == 0)