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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-07-10 10:23:12 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-07-10 10:23:12 -0700 |
| commit | 813dabb9f0413c3391035300e9af083513ce83fb (patch) | |
| tree | 293cf3238dd883ee3517245b32947b87211497de | |
| parent | 209ce4c2de420e5d55649eecdcb3e8a837fa546f (diff) | |
| download | gdb-813dabb9f0413c3391035300e9af083513ce83fb.zip gdb-813dabb9f0413c3391035300e9af083513ce83fb.tar.gz gdb-813dabb9f0413c3391035300e9af083513ce83fb.tar.bz2 | |
Warn unsupported compress type and corrupted compressed section
* readelf.c (dump_section_as_strings): Warn unsupported compress
type and corrupted compressed section.
(dump_section_as_bytes): Likewise.
(load_specific_debug_section): Likewise.
| -rw-r--r-- | binutils/ChangeLog | 7 | ||||
| -rw-r--r-- | binutils/readelf.c | 51 |
2 files changed, 45 insertions, 13 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 53b69ca..09b0e1c 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,10 @@ +2015-07-10 H.J. Lu <hongjiu.lu@intel.com> + + * readelf.c (dump_section_as_strings): Warn unsupported compress + type and corrupted compressed section. + (dump_section_as_bytes): Likewise. + (load_specific_debug_section): Likewise. + 2015-07-09 Catherine Moore <clm@codesourcery.com> * readelf.c (print_mips_fp_abi_value): Handle diff --git a/binutils/readelf.c b/binutils/readelf.c index ceedf3d..55faf83 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -12030,13 +12030,21 @@ dump_section_as_strings (Elf_Internal_Shdr * section, FILE * file) unsigned int compression_header_size = get_compression_header (& chdr, (unsigned char *) start); - if (chdr.ch_type == ELFCOMPRESS_ZLIB - && chdr.ch_addralign == section->sh_addralign) + if (chdr.ch_type != ELFCOMPRESS_ZLIB) { - uncompressed_size = chdr.ch_size; - start += compression_header_size; - new_size -= compression_header_size; + warn (_("section '%s' has unsupported compress type: %d\n"), + printable_section_name (section), chdr.ch_type); + return; + } + else if (chdr.ch_addralign != section->sh_addralign) + { + warn (_("compressed section '%s' is corrupted\n"), + printable_section_name (section)); + return; } + uncompressed_size = chdr.ch_size; + start += compression_header_size; + new_size -= compression_header_size; } else if (new_size > 12 && streq ((char *) start, "ZLIB")) { @@ -12156,13 +12164,21 @@ dump_section_as_bytes (Elf_Internal_Shdr * section, unsigned int compression_header_size = get_compression_header (& chdr, start); - if (chdr.ch_type == ELFCOMPRESS_ZLIB - && chdr.ch_addralign == section->sh_addralign) + if (chdr.ch_type != ELFCOMPRESS_ZLIB) { - uncompressed_size = chdr.ch_size; - start += compression_header_size; - new_size -= compression_header_size; + warn (_("section '%s' has unsupported compress type: %d\n"), + printable_section_name (section), chdr.ch_type); + return; } + else if (chdr.ch_addralign != section->sh_addralign) + { + warn (_("compressed section '%s' is corrupted\n"), + printable_section_name (section)); + return; + } + uncompressed_size = chdr.ch_size; + start += compression_header_size; + new_size -= compression_header_size; } else if (new_size > 12 && streq ((char *) start, "ZLIB")) { @@ -12290,9 +12306,18 @@ load_specific_debug_section (enum dwarf_section_display_enum debug, Elf_Internal_Chdr chdr; unsigned int compression_header_size = get_compression_header (&chdr, start); - if (chdr.ch_type != ELFCOMPRESS_ZLIB - || chdr.ch_addralign != sec->sh_addralign) - return 0; + if (chdr.ch_type != ELFCOMPRESS_ZLIB) + { + warn (_("section '%s' has unsupported compress type: %d\n"), + section->name, chdr.ch_type); + return 0; + } + else if (chdr.ch_addralign != sec->sh_addralign) + { + warn (_("compressed section '%s' is corrupted\n"), + section->name); + return 0; + } uncompressed_size = chdr.ch_size; start += compression_header_size; size -= compression_header_size; |