audit: type=1800 audit(1620654310.637:119): pid=18597 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="loop3" ino=200 res=0 rxrpc: Assertion failed - 0(0x0) == 18446612685021283328(0xffff8880afe88400) is false ------------[ cut here ]------------ kernel BUG at net/rxrpc/conn_client.c:792! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 18610 Comm: syz-executor.4 Not tainted 4.14.232-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809c704580 task.stack: ffff88805b6d0000 RIP: 0010:rxrpc_disconnect_client_call.cold+0x52/0x7a net/rxrpc/conn_client.c:792 RSP: 0018:ffff88805b6d7720 EFLAGS: 00010286 RAX: 0000000000000055 RBX: ffff8880b4728080 RCX: 0000000000000000 RDX: 000000000001148b RSI: ffffffff81441a30 RDI: ffffed100b6daeda RBP: ffff8880b06d5240 R08: 0000000000000055 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880b06d5290 R14: ffff8880afe88400 R15: ffff8880b06d52e0 FS: 00007f9a37173700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5e120a6000 CR3: 00000000aaaea000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rxrpc_connect_call+0x1f57/0x3e10 net/rxrpc/conn_client.c:701 rxrpc_new_client_call+0x8f4/0x1a10 net/rxrpc/call_object.c:276 rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:525 [inline] rxrpc_do_sendmsg+0x8dc/0xfb0 net/rxrpc/sendmsg.c:577 rxrpc_sendmsg+0x3cf/0x5f0 net/rxrpc/af_rxrpc.c:543 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x326/0x800 net/socket.c:2062 __sys_sendmmsg+0x129/0x330 net/socket.c:2152 SYSC_sendmmsg net/socket.c:2183 [inline] SyS_sendmmsg+0x2f/0x50 net/socket.c:2178 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4665f9 RSP: 002b:00007f9a37173188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 000000000056c0b0 RCX: 00000000004665f9 RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000004 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0 R13: 00007ffe536b661f R14: 00007f9a37173300 R15: 0000000000022000 Code: 0f 0b 48 89 34 24 e8 1b f5 36 fa 48 8b 34 24 4d 89 f1 4d 89 f0 48 c7 c1 c0 9d 66 88 48 c7 c7 00 9e 66 88 48 89 f2 e8 2f 0c e3 ff <0f> 0b e8 f4 f4 36 fa 48 c7 c7 60 9e 66 88 e8 1c 0c e3 ff 0f 0b RIP: rxrpc_disconnect_client_call.cold+0x52/0x7a net/rxrpc/conn_client.c:792 RSP: ffff88805b6d7720 ---[ end trace 4c857739c4a18f35 ]---