When process 32 bit relocation tables a local variable 'extended'
is defined to calculate the physical address of relocs entry.
However its type is 'int' which is enough for i386, but not enough
for x86_64. That's why relocation can only be handled under 2G.
Otherwise a overflow will happen and cause system hang.
Here change it to 'long' as 32 bit inverse relocation processing
does, and this change is safe for i386 relocation handling.
Signed-off-by: Baoquan He <b...@redhat.com>
---
arch/x86/boot/compressed/misc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 4b2cd0c..70445c3 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -298,7 +298,7 @@ static void handle_relocations(void *output, unsigned long
output_len)
* So we work backwards from the end of the decompressed image.
*/
for (reloc = output + output_len - sizeof(*reloc); *reloc; reloc--) {
- int extended = *reloc;
+ long extended = *reloc;
extended += map;
ptr = (unsigned long)extended;
--
2.5.0
