https://sourceware.org/bugzilla/show_bug.cgi?id=29872
--- Comment #1 from 曾思維 <13579and24680 at gmail dot com> --- Created attachment 14493 --> https://sourceware.org/bugzilla/attachment.cgi?id=14493&action=edit poc to crash in display_debug_lines_decoded dwarf.c:5413 generated with my fuzzer and AFL_TMIN_EXACT=1 afl-tmin ------------------------------------------------------ # Asan report $ ./binutils-gdb_asan_no_fuzz/binutils/objdump -WL poc poc: file format elf64-x86-64 Contents of the .debug_line section: 0000000000000000000000000000000: File name Line number Starting address View Stmt ./0000000000000000000000000000000:[++] 0000000000000000000000000000000 104 0x3030303030303090 x 0000000000000000000000000000000 158 0x3030303030303090 1 x 0000000000000000000000000000000 - 0x3030303030303990 ./0000000000000000000000000000000:[++] 0000000000000000000000000000000 104 0x3030303030303090 x 0000000000000000000000000000000 159 0x30303030303030f0 x 0000000000000000000000000000000 200 0x3030303030303150 x 0000000000000000000000000000000 255 0x30303030303031b0 x 0000000000000000000000000000000 358 0x3030303030303210 x 0000000000000000000000000000000 413 0x3030303030303270 x 0000000000000000000000000000000 468 0x30303030303032d0 x 0000000000000000000000000000000 523 0x3030303030303330 x 0000000000000000000000000000000 578 0x3030303030303390 x 0000000000000000000000000000000 633 0x30303030303033f0 x 0000000000000000000000000000000 688 0x3030303030303450 x 0000000000000000000000000000000 743 0x30303030303034b0 x 0000000000000000000000000000000 798 0x3030303030303e10 x 0000000000000000000000000000000 853 0x3030303030303e70 x 0000000000000000000000000000000 888 0x3030303030303ed0 0000000000000000000000000000000 943 0x3030303030303f30 0000000000000000000000000000000 1046 0x3030303030303f90 0000000000000000000000000000000 1101 0x3030303030303ff0 0000000000000000000000000000000 1156 0x3030303030304050 0000000000000000000000000000000 1211 0x30303030303040b0 0000000000000000000000000000000 1266 0x3030303030304110 0000000000000000000000000000000 1369 0x3030303030304170 0000000000000000000000000000000 1424 0x30303030303041d0 0000000000000000000000000000000 1479 0x3030303030304230 0000000000000000000000000000000 1534 0x3030303030304290 0000000000000000000000000000000 1581 0x30303030303042f0 0000000000000000000000000000000 1636 0x3030303030304350 0000000000000000000000000000000 1691 0x30303030303043b0 0000000000000000000000000000000 1746 0x3030303030304410 0000000000000000000000000000000 1801 0x3030303030304470 0000000000000000000000000000000 1856 0x30303030303044d0 0000000000000000000000000000000 1911 0x3030303030304530 0000000000000000000000000000000 1966 0x3030303030304590 0000000000000000000000000000000 1996 0x30303030303045f0 0000000000000000000000000000000 2051 0x3030303030304650 0000000000000000000000000000000 2154 0x30303030303046b0 0000000000000000000000000000000 2209 0x3030303030304710 0000000000000000000000000000000 2264 0x3030303030304770 0000000000000000000000000000000 2319 0x30303030303047d0 0000000000000000000000000000000 2374 0x3030303030304830 0000000000000000000000000000000 2429 0x3030303030304890 0000000000000000000000000000000 2484 0x30303030303048f0 0000000000000000000000000000000 2532 0x3030303030304950 0000000000000000000000000000000 2635 0x30303030303049b0 0000000000000000000000000000000 2656 0x3030303030304a10 x 0000000000000000000000000000000 2711 0x3030303030304a70 x 0000000000000000000000000000000 2814 0x3030303030304ad0 x 0000000000000000000000000000000 2869 0x3030303030304b30 x 0000000000000000000000000000000 2924 0x3030303030304b90 x 0000000000000000000000000000000 2979 0x3030303030304bf0 x 0000000000000000000000000000000 3034 0x3030303030304c50 x 0000000000000000000000000000000 3054 0x3030303030304cb0 x 0000000000000000000000000000000 3109 0x3030303030304d10 x 0000000000000000000000000000000 3212 0x3030303030304d70 x 0000000000000000000000000000000 3253 0x3030303030304dd0 x 0000000000000000000000000000000 3237 0x30303030303056d0 x 0000000000000000000000000000000 3292 0x3030303030305730 x 0000000000000000000000000000000 3336 0x3030303030305790 x 0000000000000000000000000000000 3391 0x30303030303057f0 x 0000000000000000000000000000000 3494 0x3030303030305850 x 0000000000000000000000000000000 3483 0x3030303030306150 x 0000000000000000000000000000000 - 0x3030303030306a50 000000000000000000000000: File name Line number Starting address View Stmt ./000000000000000000000000:[++] 000000000000000000000000 6190 0x3030303030303030 x 000000000000000000000000 6245 0x3030303030303090 x 000000000000000000000000 6300 0x30303030303030f0 x 000000000000000000000000 6355 0x3030303030303150 x 000000000000000000000000 6410 0x30303030303031b0 000000000000000000000000 6465 0x3030303030303210 000000000000000000000000 6520 0x3030303030303270 000000000000000000000000 6575 0x30303030303032d0 000000000000000000000000 6630 0x3030303030303330 000000000000000000000000 6685 0x3030303030303390 000000000000000000000000 6740 0x30303030303033f0 000000000000000000000000 6795 0x3030303030303450 000000000000000000000000 6850 0x30303030303034b0 000000000000000000000000 6905 0x3030303030303510 000000000000000000000000 6960 0x3030303030303570 000000000000000000000000 7063 0x30303030303035d0 000000000000000000000000 13374 0x3030303030303630 000000000000000000000000 13429 0x30303030303039c0 000000000000000000000000 13484 0x3030303030303a20 000000000000000000000000 13539 0x3030303030303a80 x 000000000000000000000000 13594 0x3030303030303ae0 000000000000000000000000 13649 0x3030303030303b40 x 000000000000000000000000 13704 0x3030303030303ba0 000000000000000000000000 13759 0x3030303030303f30 000000000000000000000000 13814 0x3030303030303f90 000000000000000000000000 13869 0x3030303030303ff0 x 000000000000000000000000 13223 0x3030303030304050 x 000000000000000000000000 19485 0x30303030303040b0 000000000000000000000000 19540 0x3030303030304440 000000000000000000000000 19595 0x30303030303044a0 000000000000000000000000 19650 0x3030303030304500 x 000000000000000000000000 25907 0x3030303030304e00 000000000000000000000000 24754 0x3030303030304e60 x 000000000000000000000000 31014 0x3030303030304ec0 000000000000000000000000 29856 0x3030303030304f20 x 000000000000000000000000 36139 0x3030303030304f80 000000000000000000000000 36194 0x3030303030304fe0 000000000000000000000000 36249 0x3030303030305040 x 000000000000000000000000 36304 0x30303030303050a0 000000000000000000000000 36359 0x3030303030305100 000000000000000000000000 36414 0x3030303030305160 x 000000000000000000000000 36469 0x30303030303051c0 000000000000000000000000 35281 0x3030303030305220 x 000000000000000000000000 35336 0x3030303030305280 x 000000000000000000000000 41603 0x30303030303052e0 000000000000000000000000 41658 0x3030303030305340 000000000000000000000000 41713 0x30303030303053a0 x 000000000000000000000000 41768 0x3030303030305400 x 000000000000000000000000 41823 0x3030303030305460 000000000000000000000000 41878 0x30303030303054c0 x 000000000000000000000000 41933 0x3030303030305520 000000000000000000000000 41988 0x30303030303058b0 000000000000000000000000 42043 0x3030303030305910 000000000000000000000000 40869 0x3030303030305970 x 000000000000000000000000 47178 0x30303030303059d0 000000000000000000000000 47225 0x3030303030305a30 000000000000000000000000 47280 0x3030303030305a90 x 000000000000000000000000 47335 0x3030303030305af0 000000000000000000000000 47390 0x3030303030305e80 000000000000000000000000 47447 0x30303030303061b0 000000000000000000000000 47502 0x3030303030306210 x 000000000000000000000000 47557 0x3030303030306270 000000000000000000000000 47612 0x30303030303062d0 000000000000000000000000 47667 0x3030303030306330 000000000000000000000000 47722 0x3030303030306390 000000000000000000000000 47777 0x30303030303063f0 x 000000000000000000000000 47832 0x3030303030306450 x 000000000000000000000000 47887 0x30303030303064b0 x 000000000000000000000000 47942 0x3030303030306510 x 000000000000000000000000 47997 0x3030303030306570 000000000000000000000000 48100 0x30303030303065d0 000000000000000000000000 47823 0x3030303030306630 000000000000000000000000 47878 0x3030303030306690 x 000000000000000000000000 47933 0x30303030303066f0 000000000000000000000000 47988 0x3030303030306750 000000000000000000000000 48043 0x30303030303067b0 000000000000000000000000 48098 0x3030303030306810 x 000000000000000000000000 48153 0x3030303030306870 000000000000000000000000 48209 0x3030303030306ba0 000000000000000000000000 48264 0x3030303030306c00 x 000000000000000000000000 48319 0x3030303030306c60 x 000000000000000000000000 48374 0x3030303030306cc0 x 000000000000000000000000 48477 0x3030303030306d20 000000000000000000000000 48532 0x3030303030306d80 000000000000000000000000 48587 0x3030303030306de0 x 000000000000000000000000 48642 0x3030303030306e40 x 000000000000000000000000 48697 0x3030303030306ea0 000000000000000000000000 48752 0x3030303030306f00 x 000000000000000000000000 48807 0x3030303030306f60 x 000000000000000000000000 48862 0x3030303030306fc0 x 000000000000000000000000 48917 0x3030303030307020 000000000000000000000000 48972 0x3030303030307080 x 000000000000000000000000 49027 0x30303030303070e0 x 000000000000000000000000 49082 0x3030303030307140 x 000000000000000000000000 49137 0x30303030303071a0 x 000000000000000000000000 49192 0x3030303030307200 000000000000000000000000 49247 0x3030303030307260 x 000000000000000000000000 49302 0x30303030303072c0 x 000000000000000000000000 49357 0x3030303030307320 x 000000000000000000000000 49412 0x3030303030307380 000000000000000000000000 49467 0x30303030303073e0 x 000000000000000000000000 49522 0x3030303030307440 x 000000000000000000000000 49577 0x30303030303074a0 000000000000000000000000 48629 0x3030303030307500 x 000000000000000000000000 54940 0x3030303030307560 000000000000000000000000 54995 0x30303030303075c0 x 000000000000000000000000 55050 0x3030303030307620 x 000000000000000000000000 55105 0x3030303030307680 000000000000000000000000 55160 0x30303030303076e0 x 000000000000000000000000 54205 0x3030303030307740 x 000000000000000000000000 60518 0x30303030303077a0 x 000000000000000000000000 60573 0x3030303030307800 x 000000000000000000000000 59616 0x3030303030307b30 x 000000000000000000000000 65931 0x3030303030307b90 000000000000000000000000 65986 0x3030303030307bf0 x 000000000000000000000000 66041 0x3030303030307c50 x 000000000000000000000000 66096 0x3030303030307cb0 000000000000000000000000 66151 0x3030303030307d10 000000000000000000000000 66206 0x3030303030307d70 x 000000000000000000000000 66261 0x3030303030307dd0 x 000000000000000000000000 66316 0x3030303030307e30 000000000000000000000000 66371 0x3030303030307e90 000000000000000000000000 66426 0x3030303030307ef0 000000000000000000000000 65453 0x3030303030307f50 x 000000000000000000000000 65556 0x30303030303082e0 x 000000000000000000000000 65611 0x3030303030308670 000000000000000000000000 64634 0x30303030303086d0 x 000000000000000000000000 64737 0x3030303030308a60 000000000000000000000000 64792 0x3030303030308ac0 x 000000000000000000000000 64847 0x3030303030308b20 x 000000000000000000000000 63868 0x3030303030308b80 x 000000000000000000000000 63971 0x3030303030308f10 000000000000000000000000 64026 0x3030303030308f70 x 000000000000000000000000 64081 0x3030303030308fd0 x 000000000000000000000000 64136 0x3030303030309030 000000000000000000000000 64191 0x3030303030309090 x 000000000000000000000000 64294 0x30303030303090f0 000000000000000000000000 64335 0x3030303030309150 000000000000000000000000 64390 0x30303030303091b0 x 000000000000000000000000 63403 0x3030303030309210 x 000000000000000000000000 69602 0x3030303030309270 000000000000000000000000 69657 0x30303030303092d0 x 000000000000000000000000 69712 0x3030303030309660 000000000000000000000000 69543 0x30303030303099f0 000000000000000000000000 68534 0x3030303030309a50 x 000000000000000000000000 68637 0x303030303030a110 000000000000000000000000 74932 0x303030303030a4a0 000000000000000000000000 74987 0x303030303030a830 x 000000000000000000000000 75042 0x303030303030a890 x 000000000000000000000000 75097 0x303030303030a8f0 000000000000000000000000 75152 0x303030303030a950 x 000000000000000000000000 75207 0x303030303030a9b0 x 000000000000000000000000 75262 0x303030303030aa10 x 000000000000000000000000 75317 0x303030303030aa70 x 000000000000000000000000 75420 0x303030303030aad0 000000000000000000000000 75475 0x303030303030ab30 000000000000000000000000 75530 0x303030303030aec0 x 000000000000000000000000 75585 0x303030303030af20 x 000000000000000000000000 75640 0x303030303030af80 000000000000000000000000 74505 0x303030303030afe0 x 000000000000000000000000 74608 0x303030303030b370 000000000000000000000000 74663 0x303030303030b3d0 x 000000000000000000000000 74718 0x303030303030b430 000000000000000000000000 74773 0x303030303030b7c0 x 000000000000000000000000 74828 0x303030303030b820 x 000000000000000000000000 73801 0x303030303030b880 x 000000000000000000000000 73904 0x303030303030bc10 000000000000000000000000 72838 0x303030303030bc70 x 000000000000000000000000 72941 0x303030303030c000 x 000000000000000000000000 72996 0x303030303030c060 x 000000000000000000000000 73051 0x303030303030c0c0 000000000000000000000000 73106 0x303030303030c120 x 000000000000000000000000 73161 0x303030303030c180 x 000000000000000000000000 73264 0x303030303030c510 000000000000000000000000 73319 0x303030303030c570 x 000000000000000000000000 73422 0x303030303030c5d0 000000000000000000000000 73477 0x303030303030c630 x 000000000000000000000000 72367 0x303030303030c690 x 000000000000000000000000 78679 0x303030303030c6f0 000000000000000000000000 78734 0x303030303030c750 x 000000000000000000000000 78789 0x303030303030c7b0 000000000000000000000000 78844 0x303030303030c810 x 000000000000000000000000 78947 0x303030303030c870 000000000000000000000000 79002 0x303030303030c8d0 000000000000000000000000 79057 0x303030303030c930 000000000000000000000000 79112 0x303030303030c990 x 000000000000000000000000 79167 0x303030303030c9f0 000000000000000000000000 79222 0x303030303030ca50 000000000000000000000000 85429 0x303030303030cab0 000000000000000000000000 85484 0x303030303030cb10 AddressSanitizer:DEADLYSIGNAL ================================================================= ==2607496==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f678f132616 bp 0x7ffd3f0c0a50 sp 0x7ffd3f0c0178 T0) ==2607496==The signal is caused by a READ memory access. ==2607496==Hint: address points to the zero page. #0 0x7f678f132615 in __sanitizer::internal_strlen(char const*) ../../../../src/libsanitizer/sanitizer_common/sanitizer_libc.cc:164 #1 0x7f678f0a9174 in printf_common ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors_format.inc:544 #2 0x7f678f0a9dec in __interceptor_vprintf ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:1600 #3 0x7f678f0a9ee6 in __interceptor_printf ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:1658 #4 0x558078bc8dff in display_debug_lines_decoded dwarf.c:5413 #5 0x558078bca061 in display_debug_lines dwarf.c:5655 #6 0x558078b9f8c4 in dump_dwarf_section objdump.c:4396 #7 0x558078cee15d in bfd_map_over_sections /home/a13579/fuzz_binutils-gdb/binutils-gdb_asan_no_fuzz/bfd/section.c:1366 #8 0x558078b9faf3 in dump_dwarf objdump.c:4434 #9 0x558078ba6110 in dump_bfd objdump.c:5636 #10 0x558078ba64e5 in display_object_bfd objdump.c:5715 #11 0x558078ba6816 in display_any_bfd objdump.c:5801 #12 0x558078ba6890 in display_file objdump.c:5822 #13 0x558078ba81b9 in main objdump.c:6230 #14 0x7f678ee38082 in __libc_start_main ../csu/libc-start.c:308 #15 0x558078b8c39d in _start (/home/a13579/fuzz_binutils-gdb/binutils-gdb_asan_no_fuzz/binutils/objdump+0x13b39d) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV ../../../../src/libsanitizer/sanitizer_common/sanitizer_libc.cc:164 in __sanitizer::internal_strlen(char const*) ==2607496==ABORTING -- You are receiving this mail because: You are on the CC list for the bug.
