If I understand correctly this report, it boils down to this command: echo AAAAAAAAAAAAAAAAAAAAAAAA | gifclrmp -hAAAAAAAA -i
segfaulting.
Yes, this is reproducible on jessie, stretch and sid.
It can actually be narrowed down to:
gifclrmp -i
I can debug it with:
sudo apt-get install gdb gcc libgif-dev
cc -g -I . -o gifclrmp getarg.c gifclrmp.c qprintf.c -lgif -lm
gdb gifclrmp
r -i
this is the output of gdb:
Program received signal SIGSEGV, Segmentation fault.
rawmemchr () at ../sysdeps/x86_64/rawmemchr.S:37
and this is the stack trace:
Starting program: /root/gifclrmp -i
Program received signal SIGSEGV, Segmentation fault.
rawmemchr () at ../sysdeps/x86_64/rawmemchr.S:37
37 ../sysdeps/x86_64/rawmemchr.S: File o directory non esistente.
(gdb) where
#0 rawmemchr () at ../sysdeps/x86_64/rawmemchr.S:37
#1 0x00007ffff75a43a2 in _IO_str_init_static_internal
(sf=sf@entry=0x7fffffffdfe0, ptr=ptr@entry=0x0,
size=size@entry=0, pstart=pstart@entry=0x0) at strops.c:41
#2 0x00007ffff7593567 in __GI___isoc99_vsscanf (string=0x0,
format=0x403b72 "%d",
args=args@entry=0x7fffffffe108) at isoc99_vsscanf.c:41
#3 0x00007ffff7593507 in __isoc99_sscanf (s=<optimized out>,
format=<optimized out>)
at isoc99_sscanf.c:31
#4 0x00000000004019c4 in GAGetParmeters (Parameters=0x7fffffffe6e0,
ParamCount=0x7fffffffea04,
CtrlStrCopy=0x7fffffffe32c "!d h%- GifFile!*s",
Option=0x7fffffffeeb1 "-i", argv_end=0x7fffffffecc8,
argv=0x7fffffffe2b0) at getarg.c:311
#5 0x0000000000401914 in GAUpdateParameters (Parameters=0x7fffffffe6e0,
ParamCount=0x7fffffffea04,
Option=0x7fffffffeeb1 "-i",
CtrlStrCopy=0x7fffffffe2e0 "gifclrmp v%- s%- t%-TranslationFile!s
l%-ColorMapFile!s g%-Gamma!F Image#!d h%- GifFile!*s",
CtrlStr=0x404118 "gifclrmp v%- s%- t%-TranslationFile!s
l%-ColorMapFile!s g%-Gamma!F i%-Image#!d h%- GifFile!*s",
argv_end=0x7fffffffecc8, argv=0x7fffffffe2b0) at getarg.c:290
#6 0x00000000004014ef in GAGetArgs (argc=2, argv=0x7fffffffecd0,
CtrlStr=0x404118 "gifclrmp v%- s%- t%-TranslationFile!s
l%-ColorMapFile!s g%-Gamma!F i%-Image#!d h%- GifFile!*s") at getarg.c:186
#7 0x0000000000402b4b in main (argc=2, argv=0x7fffffffecb8) at
gifclrmp.c:61
(gdb)
signature.asc
Description: OpenPGP digital signature
