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| author | Nick Clifton <nickc@redhat.com> | 2023-01-11 12:13:46 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2023-01-11 12:13:46 +0000 |
| commit | 3e307d538c351aa9327cbad672c884059ecc20dd (patch) | |
| tree | 2a84c52af268d3173bf920fee95ea92ebdbb9151 /bfd | |
| parent | ad2021a0f761e23576820aca50a7ac10d7f40bed (diff) | |
| download | gdb-3e307d538c351aa9327cbad672c884059ecc20dd.zip gdb-3e307d538c351aa9327cbad672c884059ecc20dd.tar.gz gdb-3e307d538c351aa9327cbad672c884059ecc20dd.tar.bz2 | |
Fix a potential illegal memory access in the BFD library when parsing a corrupt DWARF file.
PR 29988
* dwarf2.c (read_indexed_address): Fix check for an out of range
offset.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/dwarf2.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index f5b5b66..c2a8dc6 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2023-01-11 Nick Clifton <nickc@redhat.com> + + PR 29988 + * dwarf2.c (read_indexed_address): Fix check for an out of range + offset. + 2023-01-06 Nick Clifton <nickc@redhat.com> * po/ru.po: Updated Russian translation. diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c index 6eb6e04..4ec0053 100644 --- a/bfd/dwarf2.c +++ b/bfd/dwarf2.c @@ -1412,7 +1412,7 @@ read_indexed_address (uint64_t idx, struct comp_unit *unit) offset += unit->dwarf_addr_offset; if (offset < unit->dwarf_addr_offset || offset > file->dwarf_addr_size - || file->dwarf_addr_size - offset < unit->offset_size) + || file->dwarf_addr_size - offset < unit->addr_size) return 0; info_ptr = file->dwarf_addr_buffer + offset; |