https://sourceware.org/bugzilla/show_bug.cgi?id=33455
Bug ID: 33455
Summary: [BUG] A SEGV in vfinfo at ldmisc.c:527
Product: binutils
Version: 2.45
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: yfzhang23 at stu dot pku.edu.cn
Target Milestone: ---
Created attachment 16351
--> https://sourceware.org/bugzilla/attachment.cgi?id=16351&action=edit
POC
## Description
- Version: Binutils 2.45
- Environment: Ubuntu 20.04.6 LTS, Clang 12.0.0
## Steps to reproduce
export CC="clang"
export CFLAGS="-g -fsanitize=address"
./configure
make -j
./ld/ld-new --version-exports-section symbol --shared $POC
## Sanitizer output
==139070==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc
0x7fa9714de6e5 bp 0x7ffdd1276670 sp 0x7ffdd1275e28 T0)
==139070==The signal is caused by a READ memory access.
==139070==Hint: address points to the zero page.
#0 0x7fa9714de6e5 (/lib/x86_64-linux-gnu/libc.so.6+0x1886e5)
#1 0x436bae in fputs
/src/llvm-project/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:1254:5
#2 0x5555c7 in vfinfo
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/ld/ldmisc.c:527:8
#3 0x55761a in lfinfo
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/ld/ldmisc.c:745:3
#4 0x55608d in vfinfo
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/ld/ldmisc.c:466:5
#5 0x557a09 in einfo
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/ld/ldmisc.c:608:3
#6 0x5f3d28 in bfd_generic_get_relocated_section_contents
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/bfd/reloc.c
#7 0x5e2bdb in default_indirect_link_order
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/bfd/linker.c:2739:23
#8 0x5e3336 in _bfd_default_link_order
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/bfd/linker.c:2558:14
#9 0x734736 in bfd_elf_final_link
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/bfd/elflink.c:13198:14
#10 0x542fc9 in ldwrite
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/ld/ldwrite.c:548:8
#11 0x53a80d in main
/benchmark/RUNDIR-binutils-2.45/binutils-2.45/ld/./ldmain.c:912:3
#12 0x7fa97137a082 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x24082)
#13 0x41d69d in _start (/benchmark/bin/DAFL/ld-new-2025-1178+0x41d69d)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0x1886e5)
==139070==ABORTING
## Credit
Reported by Yifan Zhang, [PLL](https://pl.cs.pku.edu.cn/en/)
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