kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN kobject: 'kvm' (ffff888219838510): kobject_uevent_env Modules linked in: CPU: 1 PID: 14082 Comm: syz-executor.3 Not tainted 4.14.134 #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888088f1c040 task.stack: ffff88805c3a8000 RIP: 0010:rxrpc_connect_call+0xc9/0x41a0 net/rxrpc/conn_client.c:684 RSP: 0018:ffff88805c3af738 EFLAGS: 00010206 kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90009862000 RDX: 0000000000000003 RSI: ffffffff8593c089 RDI: 0000000000000018 RBP: ffff88805c3af880 R08: 0000000000000001 R09: ffff888088f1c8e0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88807c709c00 R13: ffff8880603206e0 R14: ffff8880603206d0 R15: ffff88805c3af998 FS: 00007f261c856700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30323000 CR3: 00000000844a9000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rxrpc_new_client_call+0x8f7/0x1420 net/rxrpc/call_object.c:276 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 __sys_sendmmsg+0x152/0x3a0 net/socket.c:2152 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 RSP: 002b:00007f261c855c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459829 RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f261c8566d4 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 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 8a 39 00 00 48 8b 5b 18 48 8d bb 00 02 00 00 RIP: rxrpc_connect_call+0xc9/0x41a0 net/rxrpc/conn_client.c:684 RSP: ffff88805c3af738 kobject: 'loop2' (ffff8880a493c0e0): kobject_uevent_env kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'loop2' (ffff8880a493c0e0): fill_kobj_path: path = '/devices/virtual/block/loop2' device nr0 entered promiscuous mode kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a493c0e0): kobject_uevent_env kobject: 'rx-0' (ffff8880a9236a90): kobject_cleanup, parent ffff8880a8004048 kobject: 'loop2' (ffff8880a493c0e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (ffff8880a9236a90): auto cleanup 'remove' event kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff8880a9236a90): kobject_uevent_env kobject: 'rx-0' (ffff8880a9236a90): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'rx-0' (ffff8880a9236a90): auto cleanup kobject_del kobject: 'loop4' (ffff8880a49f4a60): kobject_uevent_env kobject: 'rx-0' (ffff8880a9236a90): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (ffff888076e3ac98): kobject_cleanup, parent ffff8880a8004048 kobject: 'tx-0' (ffff888076e3ac98): auto cleanup 'remove' event kobject: 'loop4' (ffff8880a49f4a60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'tx-0' (ffff888076e3ac98): kobject_uevent_env kobject: 'tx-0' (ffff888076e3ac98): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'tx-0' (ffff888076e3ac98): auto cleanup kobject_del kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'loop1' (ffff888092fa0120): kobject_uevent_env kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (ffff888092fa0120): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'tx-0' (ffff888076e3ac98): calling ktype release kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'tx-0': free name kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (ffff8880a8004048): kobject_cleanup, parent (null) kobject: 'queues' (ffff8880a8004048): calling ktype release kobject: 'loop4' (ffff8880a49f4a60): kobject_uevent_env kobject: 'queues' (ffff8880a8004048): kset_release kobject: 'queues': free name kobject: 'nr0' (ffff888054f1a270): kobject_uevent_env kobject: 'loop4' (ffff8880a49f4a60): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'nr0' (ffff888054f1a270): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'loop1' (ffff888092fa0120): kobject_uevent_env kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff888219838510): kobject_uevent_env kobject: 'loop1' (ffff888092fa0120): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff888219838510): kobject_uevent_env ---[ end trace 2d7f1efab017010f ]--- kobject: 'kvm' (ffff888219838510): fill_kobj_path: path = '/devices/virtual/misc/kvm'