Re: BUG: unable to handle kernel NULL pointer dereference in kfree

2017-11-29 Thread Eric Biggers
.c:2252 > > SYSC_recvmsg net/socket.c:2264 [inline] > > SyS_recvmsg+0x2d/0x50 net/socket.c:2259 > > entry_SYSCALL_64_fastpath+0x1f/0x96 #syz dup: WARNING: suspicious RCU usage (3) All the following 5 reports appear to be the same bug in Salsa20, and I've marked them of duplicates of t

Re: BUG: unable to handle kernel NULL pointer dereference in kfree

2017-11-29 Thread Dmitry Vyukov
On Wed, Nov 29, 2017 at 11:24 AM, syzbot wrote: > Hello, > > syzkaller hit the following crash on > 43570f0383d6d5879ae585e6c3cf027ba321546f > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached > Raw console output is