https://sourceware.org/bugzilla/show_bug.cgi?id=19628
Bug ID: 19628
Summary: null pointer dereference
Product: binutils
Version: 2.26
Status: NEW
Severity: critical
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: alaa.mubaied at gmail dot com
Target Milestone: ---
Created attachment 8982
--> https://sourceware.org/bugzilla/attachment.cgi?id=8982&action=edit
crasher file
Hi,
I'd like to report a null pointer dereference in binutils/bin/ld. details are
below: (crasher attached). Also wondering if CVE is required.
-bash-4.2$ gdb /opt/binutils/bin/ld
Reading symbols from /opt/binutils/bin/ld...done.
(gdb) r crasher
Starting program: /opt/binutils/bin/ld crasher
Program received signal SIGSEGV, Segmentation fault.
bfd_generic_get_relocated_section_contents (abfd=0xc75290, link_info=0xc5da60
<link_info>, link_order=<optimized out>, data=0xc9c090 "", relocatable=0,
symbols=<optimized out>) at reloc.c:7920
7920 if (symbol->section && discarded_section (symbol->section))
Missing separate debuginfos, use: debuginfo-install
glibc-2.17-55.el7_0.5.x86_64
(gdb) bt
#0 bfd_generic_get_relocated_section_contents (abfd=0xc75290,
link_info=0xc5da60 <link_info>, link_order=<optimized out>, data=0xc9c090 "",
relocatable=0,
symbols=<optimized out>) at reloc.c:7920
#1 0x000000000056aafd in default_indirect_link_order (generic_linker=0,
link_order=0x10, output_section=0xc765a0, info=0xc5da60 <link_info>,
output_bfd=0xc75290) at linker.c:2706
#2 _bfd_default_link_order (abfd=abfd@entry=0xc75290, info=info@entry=0xc5da60
<link_info>, sec=sec@entry=0xc765a0, link_order=link_order@entry=0xc86620)
at linker.c:2519
#3 0x00000000006b622f in bfd_elf_final_link (abfd=<optimized out>,
info=<optimized out>) at elflink.c:11362
#4 0x0000000000489810 in ldwrite () at ldwrite.c:581
#5 0x00000000004092c5 in main (argc=2, argv=0x7fffffffe608) at ./ldmain.c:430
(gdb) p symbol
$1 = (asymbol *) 0x0
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