https://sourceware.org/bugzilla/show_bug.cgi?id=33019
Bug ID: 33019
Summary: Segmentation Fault in elf_x86_64_finish_dynamic_symbol
During Linking
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: xdcao.cs at gmail dot com
Target Milestone: ---
Summary
Segmentation Fault in elf_x86_64_finish_dynamic_symbol During Linking
Environment
GNU Binutils version: 2.44.50 & master
OS: Ubuntu 22.04.5 LTS
Steps to reproduce
# export CFLAGS="-g -O0 -fno-inline -fno-lto -fsanitize=address"
# export CXXFLAGS="-g -O0 -fno-inline -fno-lto -fsanitize=address"
# ./configure --disable-werror --enable-targets=all --enable-gold[=yes]
# make -j64 & make install
root@c6c01f72391e:# ./ld-new --gc-sections -z nosectionheader POC
./ld-new: warning: cannot find entry symbol _start; not setting start address
AddressSanitizer:DEADLYSIGNAL
=================================================================
==895047==ERROR: AddressSanitizer: SEGV on unknown address 0x0000000000e0 (pc
0x000000c7f1ee bp 0x7fff70e7aea0 sp 0x7fff70e7ac40 T0)
==895047==The signal is caused by a READ memory access.
==895047==Hint: address points to the zero page.
#0 0xc7f1ee in elf_x86_64_finish_dynamic_symbol
/workspace/new-test/program/binutils-gdb/bfd/elf64-x86-64.c:5246:34
#1 0xc94c49 in elf_x86_64_finish_local_dynamic_symbol
/workspace/new-test/program/binutils-gdb/bfd/elf64-x86-64.c:5540:10
#2 0x1def668 in htab_traverse_noresize
/workspace/new-test/program/binutils-gdb/libiberty/./hashtab.c:775:7
#3 0xc83279 in elf_x86_64_output_arch_local_syms
/workspace/new-test/program/binutils-gdb/bfd/elf64-x86-64.c:5742:3
#4 0xd7e47b in bfd_elf_final_link
/workspace/new-test/program/binutils-gdb/bfd/elflink.c:13266:14
#5 0x544f29 in ldwrite
/workspace/new-test/program/binutils-gdb/ld/ldwrite.c:548:8
#6 0x53b0b0 in main
/workspace/new-test/program/binutils-gdb/ld/./ldmain.c:912:3
#7 0x7fe7bb858d8f in __libc_start_call_main
csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#8 0x7fe7bb858e3f in __libc_start_main csu/../csu/libc-start.c:392:3
#9 0x4206f4 in _start (/workspace/new-test/fuzzdir/fz-ld/ld-new+0x4206f4)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
/workspace/new-test/program/binutils-gdb/bfd/elf64-x86-64.c:5246:34 in
elf_x86_64_finish_dynamic_symbol
==895047==ABORTING
POC
https://drive.google.com/file/d/1Bny7b-su4OXmpn7cQKLAMM7KCiJl4tVP/view?usp=sharing
redit
Xiaoguo Li (CUPL)
Xudong Cao (UCAS)
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