https://sourceware.org/bugzilla/show_bug.cgi?id=18570
Bug ID: 18570
Summary: Crash in objdump (elf-attrs.c)
Product: binutils
Version: 2.25
Status: NEW
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: paulwebsec at gmail dot com
Target Milestone: ---
Created attachment 8381
--> https://sourceware.org/bugzilla/attachment.cgi?id=8381&action=edit
file to reproduce the segfault
Segfault produced by the command: `objdump -r <file>`
(gdb) r -r
"/home/user/binutils-gdb/afl_out_objdump/crashes/id:000007,sig:11,src:002710,op:flip1,pos:26769"
Starting program: /home/user/binutils-gdb/binutils/objdump -r
"/home/user/binutils-gdb/afl_out_objdump/crashes/id:000007,sig:11,src:002710,op:flip1,pos:26769"
Program received signal SIGSEGV, Segmentation fault.
0x00000000006eba4c in bfd_elf_add_obj_attr_int (abfd=abfd@entry=0xc9b1c0,
vendor=vendor@entry=1, tag=tag@entry=-157895616, i=401923) at elf-attrs.c:300
300 attr->i = i;
(gdb) info registers
rax 0x1 1
rbx 0x0 0
rcx 0x62203 401923
rdx 0xf696b440 4137071680
rsi 0x1 1
rdi 0xc9b1c0 13218240
rbp 0xffffffff6a34ff10 0xffffffff6a34ff10
rsp 0x7fffffffe100 0x7fffffffe100
r8 0xc9f201 13234689
r9 0xfffffffff696b440 -157895616
r10 0x9 9
r11 0x3 3
r12 0x1 1
r13 0xc9b1c0 13218240
r14 0x62203 401923
r15 0xc9f29c 13234844
rip 0x6eba4c 0x6eba4c <bfd_elf_add_obj_attr_int+396>
eflags 0x10213 [ CF AF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
(gdb) bt
#0 0x00000000006eba4c in bfd_elf_add_obj_attr_int (abfd=abfd@entry=0xc9b1c0,
vendor=vendor@entry=1, tag=tag@entry=-157895616, i=401923) at elf-attrs.c:300
#1 0x00000000006ee1c7 in _bfd_elf_parse_attributes (abfd=abfd@entry=0xc9b1c0,
hdr=hdr@entry=0xc9d8a0) at elf-attrs.c:539
#2 0x00000000006335d5 in bfd_section_from_shdr (abfd=abfd@entry=0xc9b1c0,
shindex=shindex@entry=5) at elf.c:2119
#3 0x000000000061b4d0 in bfd_elf64_object_p (abfd=0xc9b1c0) at elfcode.h:800
#4 0x00000000005af7c0 in bfd_check_format_matches (abfd=abfd@entry=0xc9b1c0,
format=format@entry=bfd_object, matching=matching@entry=0x7fffffffe490) at
format.c:305
#5 0x000000000041fdb0 in display_object_bfd (abfd=0xc9b1c0) at
./objdump.c:3407
#6 display_any_bfd (file=file@entry=0xc9b1c0, level=level@entry=0) at
./objdump.c:3498
#7 0x000000000040d1f6 in display_file (target=0x0,
filename=0x7fffffffe861
"/home/user/binutils-gdb/afl_out_objdump/crashes/id:000007,sig:11,src:002710,op:flip1,pos:26769")
at ./objdump.c:3519
#8 display_file (target=<optimized out>,
filename=0x7fffffffe861
"/home/user/binutils-gdb/afl_out_objdump/crashes/id:000007,sig:11,src:002710,op:flip1,pos:26769")
at ./objdump.c:3525
#9 main (argc=3, argv=0x7fffffffe618) at ./objdump.c:3802
(gdb)
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