* asan: applying zero offset to NULL pointer
@ 2022-06-14 0:23 Alan Modra
0 siblings, 0 replies; only message in thread
From: Alan Modra @ 2022-06-14 0:23 UTC (permalink / raw)
To: binutils
* dwarf.c (fetch_indexed_string): Move initialisation of "curr"
and "end" after checking for missing section.
diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index caa3ce48d00..c16f5a891b7 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -700,8 +700,7 @@ fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set,
dwarf_vma index_offset;
dwarf_vma str_offset;
const char * ret;
- unsigned char *curr = index_section->start;
- unsigned char *end = curr + index_section->size;
+ unsigned char *curr, *end;
dwarf_vma length;
if (index_section->start == NULL)
@@ -712,6 +711,8 @@ fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set,
return (dwo ? _("<no .debug_str.dwo section>")
: _("<no .debug_str section>"));
+ curr = index_section->start;
+ end = curr + index_section->size;
/* FIXME: We should cache the length... */
SAFE_BYTE_GET_AND_INC (length, curr, 4, end);
if (length == 0xffffffff)
--
Alan Modra
Australia Development Lab, IBM
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