From a604369a855e16ac17dbb40699fbb45cf03b766b Mon Sep 17 00:00:00 2001 From: Kevin Buettner Date: Mon, 15 Sep 2003 17:19:23 +0000 Subject: [PATCH] * dwarf2read.c (dwarf2_get_pc_bounds): Complain if offset associated with DW_AT_ranges attribute is out of bounds. --- gdb/ChangeLog | 5 +++++ gdb/dwarf2read.c | 10 +++++++++- 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 49e1dff0b9..0e22b0f028 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2003-09-15 Kevin Buettner + + * dwarf2read.c (dwarf2_get_pc_bounds): Complain if offset + associated with DW_AT_ranges attribute is out of bounds. + 2003-09-15 David Lecomber * f-valprint.c: Apply array element printing limits to multi-dimensional arrays diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 75d81e9726..5f0ec27036 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -2314,7 +2314,7 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc, unsigned int addr_size = cu_header->addr_size; CORE_ADDR mask = ~(~(CORE_ADDR)1 << (addr_size * 8 - 1)); /* Value of the DW_AT_ranges attribute is the offset in the - .debug_renges section. */ + .debug_ranges section. */ unsigned int offset = DW_UNSND (attr); /* Base address selection entry. */ CORE_ADDR base; @@ -2327,6 +2327,14 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc, found_base = cu_header->base_known; base = cu_header->base_address; + + if (offset >= dwarf_ranges_size) + { + complaint (&symfile_complaints, + "Offset %d out of bounds for DW_AT_ranges attribute", + offset); + return 0; + } buffer = dwarf_ranges_buffer + offset; /* Read in the largest possible address. */ -- 2.34.1