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display_debug_rnglists_list

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* dwarf.c (display_debug_rnglists_list): Avoid pointer UB.
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Alan Modra
2021-05-15 15:17:16 +09:30
parent 5250d2f0a5
commit 669f463dbc
2 changed files with 5 additions and 1 deletions
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4
binutils/ChangeLog
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@ -1,3 +1,7 @@
2021-05-15 Alan Modra <amodra@gmail.com>
* dwarf.c (display_debug_rnglists_list): Avoid pointer UB.
2021-05-15 Alan Modra <amodra@gmail.com> 2021-05-15 Alan Modra <amodra@gmail.com>
* dwarf.c (display_debug_str_offsets): Constrain reads to length * dwarf.c (display_debug_str_offsets): Constrain reads to length

2
binutils/dwarf.c
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@ -7603,7 +7603,7 @@ display_debug_rnglists_list (unsigned char *start, unsigned char *finish,
/* Initialize it due to a false compiler warning. */ /* Initialize it due to a false compiler warning. */
dwarf_vma begin = -1, length, end = -1; dwarf_vma begin = -1, length, end = -1;
if (start + 1 > finish) if (start >= finish)
{ {
warn (_("Range list starting at offset 0x%lx is not terminated.\n"), warn (_("Range list starting at offset 0x%lx is not terminated.\n"),
offset); offset);