Don't just skip the block length, but check it is equal to the
op->number that we are going to use as length.
Signed-off-by: Mark Wielaard <mark@klomp.org>
+2022-05-09 Mark Wielaard <mark@klomp.org>
+
+ * dwarf_getlocation.c (store_implicit_value): Check block length.
+
2022-04-16 Mark Wielaard <mark@klomp.org>
* libdwP.h: Remove atomics.h include.
sizeof (struct loc_block_s), 1);
const unsigned char *data = (const unsigned char *) (uintptr_t) op->number2;
/* Skip the block length. */
- __libdw_get_uleb128_unchecked (&data);
+ Dwarf_Word length;
+ get_uleb128_unchecked (length, data);
+ if (length != op->number)
+ return -1;
block->addr = op;
block->data = (unsigned char *) data;
block->length = op->number;