binutils/binutils-CVE-2018-10372.patch
2018-07-11 15:45:35 +01:00

23 lines
719 B
Diff

--- binutils.orig/binutils/dwarf.c 2018-07-11 11:45:09.971024884 +0100
+++ binutils-2.29/binutils/dwarf.c 2018-07-11 14:16:38.417025086 +0100
@@ -8509,7 +8509,18 @@ process_cu_tu_index (struct dwarf_sectio
}
if (!do_display)
- memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t));
+ {
+ size_t num_copy = sizeof (uint64_t);
+
+ /* PR 23064: Beware of buffer overflow. */
+ if (ph + num_copy < limit)
+ memcpy (&this_set[row - 1].signature, ph, num_copy);
+ else
+ {
+ warn (_("Signature (%p) extends beyond end of space in section\n"), ph);
+ return 0;
+ }
+ }
prow = poffsets + (row - 1) * ncols * 4;
/* PR 17531: file: b8ce60a8. */