https://sourceware.org/bugzilla/show_bug.cgi?id=19630
Bug ID: 19630
Summary: crash in bin/as null pointer dereference
Product: binutils
Version: 2.26
Status: NEW
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: alaa.mubaied at gmail dot com
Target Milestone: ---
Created attachment 8984
--> https://sourceware.org/bugzilla/attachment.cgi?id=8984&action=edit
crasher
Hi, I'd like to report a crash in bin/as - possible null pointer dereference.
crasher2 attached
-bash-4.2$ gdb /opt/binutils/bin/as
Reading symbols from /opt/binutils/bin/as...done.
(gdb) r crasher2
Starting program: /opt/binutils/bin/as crasher2
Program received signal SIGSEGV, Segmentation fault.
0x00000000004ce722 in read_a_source_file (name=<optimized out>) at read.c:1109
1109 *input_line_pointer++ = nul_char;
Missing separate debuginfos, use: debuginfo-install
glibc-2.17-55.el7_0.5.x86_64
(gdb) bt
#0 0x00000000004ce722 in read_a_source_file (name=<optimized out>) at
read.c:1109
#1 0x000000000040811f in perform_an_assembly_pass (argv=0xcb4838,
argc=<optimized out>) at as.c:1138
#2 main (argc=2, argv=0xcb4830) at as.c:1262
(gdb) p input_line_pointer
$1 = 0x1 <Address 0x1 out of bounds>
(gdb) p nul_char
$2 = 0 '\000'
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