binder: release 623:630 transaction 328 out, still active binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 328, target dead ------------[ cut here ]------------ refcount_t: increment on 0; use-after-free. WARNING: CPU: 0 PID: 703 at lib/refcount.c:153 refcount_inc+0x47/0x50 lib/refcount.c:153 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 703 Comm: syz-executor3 Not tainted 4.15.0-rc3-next-20171214+ #67 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xe9/0x14b lib/dump_stack.c:53 panic+0x10e/0x2f8 kernel/panic.c:183 __warn+0x14e/0x150 kernel/panic.c:547 report_bug+0x11e/0x1a0 lib/bug.c:184 fixup_bug.part.11+0x17/0x30 arch/x86/kernel/traps.c:177 fixup_bug arch/x86/kernel/traps.c:246 [inline] do_error_trap+0x14a/0x180 arch/x86/kernel/traps.c:295 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079 RIP: 0010:refcount_inc+0x47/0x50 lib/refcount.c:153 RSP: 0018:ffffc90000dc7aa8 EFLAGS: 00010292 RAX: 000000000000002b RBX: ffff8801e08c5c38 RCX: ffffffff8123dede RDX: 0000000000004525 RSI: ffffc90003c1b000 RDI: 0000000000000216 RBP: ffffc90000dc7ab0 R08: ffff88021fc1bda8 R09: 0000000000000000 R10: ffffc90000dc7a30 R11: 0000000000000000 R12: 000000000000006c R13: ffff8801e08c5c38 R14: 0000000000000000 R15: ffff8801e0330100 xfrm_state_hold include/net/xfrm.h:858 [inline] xfrm_state_flush+0x185/0x2b0 net/xfrm/xfrm_state.c:719 pfkey_flush+0x6f/0xd0 net/key/af_key.c:1753 pfkey_process+0x255/0x290 net/key/af_key.c:2809 pfkey_sendmsg+0x193/0x310 net/key/af_key.c:3648 sock_sendmsg_nosec net/socket.c:636 [inline] sock_sendmsg+0x51/0x70 net/socket.c:646 ___sys_sendmsg+0x35e/0x3b0 net/socket.c:2026 __sys_sendmsg+0x50/0x90 net/socket.c:2060 SYSC_sendmsg net/socket.c:2071 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2067 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f6bbd99dc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: cccccccccccccccd RCX: 0000000000452a39 RDX: 0000000000000080 RSI: 000000002019d000 RDI: 0000000000000016 RBP: 00000000000005be R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f6a70 R13: 00000000ffffffff R14: 00007f6bbd99e6d4 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..