wget/fuzz/glob_crash.c
2019-02-10 11:50:17 +01:00

51 lines
1.6 KiB
C

/*
* Copyright (c) 2017-2019 Free Software Foundation, Inc.
*
* This file is part of GNU Wget.
*
* GNU Wget is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GNU Wget is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Wget. If not, see <https://www.gnu.org/licenses/>.
* Created 19.10.2017 by Tim Rühsen
*
* Call glob() using data from fuzzer crash file
*
* Build and execute with instrumented gnulib (amend -I paths as needed):
*
* clang build (spills out WRITE heap buffer overflow)
* export CC=clang-6.0
* export CFLAGS="-O1 -g -fno-omit-frame-pointer -fsanitize=address -fsanitize-address-use-after-scope"
* $CC $CFLAGS -I.. -I../lib glob_crash.c -o glob_crash ../lib/.libs/libgnu.a
* ./glob_crash
*
* gcc build (spills out READ heap buffer overflow):
* export CC=gcc
* export CFLAGS="-O1 -g -fno-omit-frame-pointer -fsanitize=address -fsanitize-address-use-after-scope"
* $CC $CFLAGS -I.. -I../lib glob_crash.c -o glob_crash ../lib/.libs/libgnu.a
* ./glob_crash
*/
#include <glob.h>
int main(int argc, char **argv)
{
static unsigned char data[] = "1e";
glob_t pglob;
if (glob(data, GLOB_TILDE|GLOB_ONLYDIR|GLOB_NOCHECK, NULL, &pglob) == 0)
globfree(&pglob);
return 0;
}