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| author | Kevin Buettner <kevinb@redhat.com> | 2003-09-15 17:19:23 +0000 |
|---|---|---|
| committer | Kevin Buettner <kevinb@redhat.com> | 2003-09-15 17:19:23 +0000 |
| commit | a604369a855e16ac17dbb40699fbb45cf03b766b (patch) | |
| tree | 62e4eced1795d5fbf21dcb6d795cd3eb9f40be1e | |
| parent | b3cacbee3f248b67ae6518c428aeea115a46a50a (diff) | |
| download | gdb-a604369a855e16ac17dbb40699fbb45cf03b766b.zip gdb-a604369a855e16ac17dbb40699fbb45cf03b766b.tar.gz gdb-a604369a855e16ac17dbb40699fbb45cf03b766b.tar.bz2 | |
* dwarf2read.c (dwarf2_get_pc_bounds): Complain if offset
associated with DW_AT_ranges attribute is out of bounds.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/dwarf2read.c | 10 |
2 files changed, 14 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 49e1dff..0e22b0f 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2003-09-15 Kevin Buettner <kevinb@redhat.com> + + * dwarf2read.c (dwarf2_get_pc_bounds): Complain if offset + associated with DW_AT_ranges attribute is out of bounds. + 2003-09-15 David Lecomber <dsl@sources.redhat.com> * f-valprint.c: Apply array element printing limits to multi-dimensional arrays diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 75d81e9..5f0ec27 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. */ |