crash with file image with --

[Patrice Dumas]

Hello,

The following code crash 4.12:
@image{f--ile,,,,e--xt}

Here is a backtrace:
(gdb) bt
#0  0x00110422 in __kernel_vsyscall ()
#1  0x00b7b660 in raise (sig=<value optimized out>)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0x00b7d028 in abort () at abort.c:88
#3  0x00bb85bd in __libc_message (do_abort=<value optimized out>, 
    fmt=<value optimized out>) at
../sysdeps/unix/sysv/linux/libc_fatal.c:170
#4  0x00bbe7e4 in malloc_printerr (action=<value optimized out>, 
    str=<value optimized out>, ptr=<value optimized out>) at
malloc.c:5949
#5  0x00bc1846 in _int_malloc (av=<value optimized out>, 
    bytes=<value optimized out>) at malloc.c:4127
#6  0x00bc2c55 in __libc_malloc (bytes=<value optimized out>) at
malloc.c:3551
#7  0x0806bca2 in xmalloc (n=32) at xmalloc.c:49
#8  0x0804e6fe in get_file_info_in_path (filename=0x8f2a3b8
"f--ile.e--xt", 
    path=0x8f1f888 "/home/dumas/tmp/clean_makeinfo/:.",
finfo=0xbffe936c)
    at files.c:73
#9  0x0805dc87 in cm_image (arg=0) at makeinfo.c:3418
#10 0x0805cfe3 in reader_loop () at makeinfo.c:2110
#11 0x0805eff1 in convert_from_loaded_file (name=0xbffea715
"image_bug.texi")
    at makeinfo.c:1700
#12 0x0805fe64 in main (argc=2, argv=0xbffe9584) at makeinfo.c:1401

In fedora it is detected by:
*** glibc detected *** /home/dumas/src/texinfo/makeinfo/makeinfo: malloc(): 
memory corruption (fast): 0x08f2a3c8 ***

but dependeing on the texinfo around, it may also be a segfault.

--
Pat

image_bug.texi
Description: TeXInfo document