On Tue, Nov 28, 2017 at 07:23:01AM -0800, syzbot wrote: > Hello, > > syzkaller hit the following crash on > 1ea8d039f9edcfefb20d8ddfe136930f6e551529 > git://git.cmpxchg.org/linux-mmots.git/master > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached > Raw console output is attached. > C reproducer is attached > syzkaller reproducer is attached. See https://goo.gl/kgGztJ > for information about syzkaller reproducers > > > ================================================================== > BUG: KASAN: use-after-free in __le32_to_cpup > include/uapi/linux/byteorder/little_endian.h:58 [inline] > BUG: KASAN: use-after-free in le32_to_cpuvp crypto/chacha20_generic.c:19 > [inline] > BUG: KASAN: use-after-free in crypto_chacha20_init > crypto/chacha20_generic.c:58 [inline] > BUG: KASAN: use-after-free in crypto_chacha20_crypt+0xaf1/0xbd0 > crypto/chacha20_generic.c:91 > Read of size 4 at addr ffff880100000006 by task syzkaller030711/3690 > #syz dup: general protection fault in crypto_chacha20_crypt
