https://sourceware.org/bugzilla/show_bug.cgi?id=28414
Bug ID: 28414
Summary: SEGV in objdump at bfd/reloc.c:8423
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: irfanariq at kaist dot ac.kr
Target Milestone: ---
Created attachment 13696
--> https://sourceware.org/bugzilla/attachment.cgi?id=13696&action=edit
poc and full stack trace
Hello,
We are currently working on fuzz testing feature, and we found a **SEGV** on
`objdump`.
The stack traces are as follow:
```
==30122==ERROR: AddressSanitizer: SEGV on unknown address 0x602007ffd170 (pc
0x55c14f74390d bp 0x7ffdf902a620 sp 0x7ffdf902a4f0 T0)
==30122==The signal is caused by a READ memory access.
#0 0x55c14f74390c in bfd_generic_get_relocated_section_contents
.../binutils-git/bfd/reloc.c:8423
#1 0x55c14eaeb93f in bfd_get_relocated_section_contents
.../binutils-git/bfd/bfd.c:2166
#2 0x55c14eb07c54 in bfd_simple_get_relocated_section_contents
.../binutils-git/bfd/simple.c:298
#3 0x55c14e63c9e0 in load_specific_debug_section objdump.c:3650
#4 0x55c14e63cfb5 in load_debug_section objdump.c:3740
#5 0x55c14e65812c in load_debug_section_with_follow
.../binutils-git/binutils/dwarf.c:3358
#6 0x55c14e65c4d3 in load_debug_info .../binutils-git/binutils/dwarf.c:4044
#7 0x55c14e668c60 in display_debug_pubnames_worker
.../binutils-git/binutils/dwarf.c:5619
#8 0x55c14e669a8a in display_debug_gnu_pubnames
.../binutils-git/binutils/dwarf.c:5748
#9 0x55c14e63d5a5 in dump_dwarf_section objdump.c:3835
#10 0x55c14eb063c0 in bfd_map_over_sections
.../binutils-git/bfd/section.c:1383
```
The full stack trace is attached.
**Step to reproduce**
We configured `objdump` using
`CFLAGS="-g -O0 -fsanitize=address" ./configure --prefix=$(pwd)/
--disable-shared --enable-targets=all`
and build it using `make -j 10`, and run it with:
```
./objdump --line-numbers --debugging <attached file> 440 little --endian=big -d
data32
```
The input file is attached.
**Environment**
- OS: Ubuntu 18.04.5 LTS
- GCC version: gcc 7.5.0
- binutils version: commit (98ca73a) of master branch on sourceware git
([link](https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=98ca73afe51e1e921915c37f242c88d4d445841c))
Thank you.
--
You are receiving this mail because:
You are on the CC list for the bug.
