https://sourceware.org/bugzilla/show_bug.cgi?id=28046
Bug ID: 28046
Summary: Segment fault on objdump -S
Product: binutils
Version: 2.37 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: shaohua.li at inf dot ethz.ch
Target Milestone: ---
Created attachment 13524
--> https://sourceware.org/bugzilla/attachment.cgi?id=13524&action=edit
poc
Hi there,
I crashed `objdump -S` with a fuzzer.
- Compiler: clang12
- Platform: Ubuntu 18.04.5 LTS, x86_64
- Reproduce: run `objdump -S poc`
AddressSanitizer output:
=================================================================
==56007==ERROR: AddressSanitizer: SEGV on unknown address 0x604000f8010f (pc
0x00000093caef bp 0x7ffef046fe90 sp 0x7ffef046fd30 T0)
==56007==The signal is caused by a READ memory access.
#0 0x93caef in bfd_getl32 /objdump/repo/bfd/libbfd.c:727:23
#1 0xa8e42d in read_ranges /objdump/repo/bfd/./dwarf2.c:3110:16
#2 0xa8e42d in read_rangelist /objdump/repo/bfd/./dwarf2.c:3213:12
#3 0xa851c7 in parse_comp_unit /objdump/repo/bfd/./dwarf2.c:3802:9
#4 0xa851c7 in stash_comp_unit /objdump/repo/bfd/./dwarf2.c:4832:32
#5 0xa80186 in _bfd_dwarf2_find_nearest_line
/objdump/repo/bfd/./dwarf2.c:5139:18
#6 0x9df408 in _bfd_elf_find_nearest_line /objdump/repo/bfd/elf.c:9199:7
#7 0x4dabf7 in show_line /objdump/repo/binutils/./objdump.c:1784:9
#8 0x4dabf7 in disassemble_bytes /objdump/repo/binutils/./objdump.c:2770:6
#9 0x4dabf7 in disassemble_section
/objdump/repo/binutils/./objdump.c:3455:4
#10 0x9465eb in bfd_map_over_sections /objdump/repo/bfd/section.c:1383:5
#11 0x4ce8a3 in disassemble_data /objdump/repo/binutils/./objdump.c:3599:3
#12 0x4ce8a3 in dump_bfd /objdump/repo/binutils/./objdump.c:4998:5
#13 0x4cb567 in display_object_bfd /objdump/repo/binutils/./objdump.c
#14 0x4cb567 in display_any_bfd /objdump/repo/binutils/./objdump.c:5150:5
#15 0x4ca1c6 in display_file /objdump/repo/binutils/./objdump.c:5171:3
#16 0x4ca1c6 in main /objdump/repo/binutils/./objdump.c:5521:6
#17 0x7f41b5ad2bf6 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x21bf6)
#18 0x41c4d9 in _start (/out_bin/objdump+0x41c4d9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /objdump/repo/bfd/libbfd.c:727:23 in bfd_getl32
==56007==ABORTING
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