kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 18097 Comm: syz-executor.5 Not tainted 4.14.134 #30 kobject: 'loop0' (ffff88805fa7aca0): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880478b6500 task.stack: ffff888095ff8000 RIP: 0010:rxrpc_connect_call+0xc9/0x41a0 net/rxrpc/conn_client.c:684 RSP: 0018:ffff888095fff738 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005e35000 RDX: 0000000000000003 RSI: ffffffff8593c089 RDI: 0000000000000018 RBP: ffff888095fff880 R08: 0000000000000001 R09: ffff8880478b6da0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88807ec03c00 R13: ffff888060508660 R14: ffff888060508650 R15: ffff888095fff998 FS: 00007fc966557700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33524000 CR3: 000000008f855000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop0' (ffff88805fa7aca0): fill_kobj_path: path = '/devices/virtual/block/loop0' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env kobject: 'kvm' (ffff888219ff2590): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env rxrpc_new_client_call+0x8f7/0x1420 net/rxrpc/call_object.c:276 kobject: 'kvm' (ffff888219ff2590): fill_kobj_path: path = '/devices/virtual/misc/kvm' rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:525 [inline] rxrpc_do_sendmsg+0x91a/0x1103 net/rxrpc/sendmsg.c:577 rxrpc_sendmsg+0x48a/0x650 net/rxrpc/af_rxrpc.c:543 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x349/0x840 net/socket.c:2062 kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env kobject: 'kvm' (ffff888219ff2590): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a49f0f60): kobject_uevent_env kobject: 'loop3' (ffff8880a49f0f60): fill_kobj_path: path = '/devices/virtual/block/loop3' __sys_sendmmsg+0x152/0x3a0 net/socket.c:2152 kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env SYSC_sendmmsg net/socket.c:2183 [inline] SyS_sendmmsg+0x35/0x60 net/socket.c:2178 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459829 kobject: 'kvm' (ffff888219ff2590): fill_kobj_path: path = '/devices/virtual/misc/kvm' RSP: 002b:00007fc966556c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459829 RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc9665576d4 R13: 00000000004c7000 R14: 00000000004dc570 R15: 00000000ffffffff Code: e8 03 80 3c 18 00 0f 85 6f 39 00 00 48 8b 85 28 ff ff ff 48 8b 18 48 kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 kobject: 'kvm' (ffff888219ff2590): fill_kobj_path: path = '/devices/virtual/misc/kvm' 00 0f 85 8a 39 00 00 48 kobject: 'loop3' (ffff8880a49f0f60): kobject_uevent_env 8b 5b 18 48 8d bb 00 02 00 00 RIP: rxrpc_connect_call+0xc9/0x41a0 net/rxrpc/conn_client.c:684 RSP: ffff888095fff738 ---[ end trace a10fdf372ba4032e ]--- kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env kobject: 'loop3' (ffff8880a49f0f60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff888219ff2590): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff888219ff2590): kobject_uevent_env