kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3648 Comm: syz-executor.3 Not tainted 4.19.60 #34 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rxrpc_connect_call+0xe0/0x48d0 net/rxrpc/conn_client.c:693 Code: 03 80 3c 18 00 0f 85 a9 40 00 00 48 8b 85 08 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 76 40 00 00 48 8b 5b 18 48 8d bb f0 01 00 00 48 RSP: 0018:ffff88805c20f660 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000c4aa000 RDX: 0000000000000003 RSI: ffffffff86538870 RDI: 0000000000000018 RBP: ffff88805c20f7d0 R08: 00000000006000c0 R09: ffff88805d92cee0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880636bbb40 R13: ffff8880866a86e0 R14: ffff8880866a86d0 R15: ffff88805c20f8f8 FS: 00007fe07d0cc700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e126000 CR3: 0000000063275000 CR4: 00000000001426e0 Call Trace: kobject: 'loop1' (00000000485f74a1): kobject_uevent_env rxrpc_new_client_call+0x8e7/0x1880 net/rxrpc/call_object.c:291 kobject: 'loop1' (00000000485f74a1): fill_kobj_path: path = '/devices/virtual/block/loop1' rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:595 [inline] rxrpc_do_sendmsg+0xfbe/0x1c8f net/rxrpc/sendmsg.c:651 kobject: 'loop5' (00000000016e1900): kobject_uevent_env rxrpc_sendmsg+0x4b8/0x5f0 net/rxrpc/af_rxrpc.c:592 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2115 kobject: 'loop5' (00000000016e1900): fill_kobj_path: path = '/devices/virtual/block/loop5' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=12297 sclass=netlink_route_socket pig=3759 comm=syz-executor.5 __sys_sendmmsg+0x1bf/0x4e0 net/socket.c:2210 kobject: 'loop1' (00000000485f74a1): kobject_uevent_env kobject: 'loop1' (00000000485f74a1): fill_kobj_path: path = '/devices/virtual/block/loop1' __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2236 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=12297 sclass=netlink_route_socket pig=3765 comm=syz-executor.5 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe07d0cbc78 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: 00007fe07d0cc6d4 kobject: 'loop5' (00000000016e1900): kobject_uevent_env R13: 00000000004c6e90 R14: 00000000004dc250 R15: 00000000ffffffff Modules linked in: kobject: 'loop5' (00000000016e1900): fill_kobj_path: path = '/devices/virtual/block/loop5' ---[ end trace 74e8d7727ba7c6d2 ]--- RIP: 0010:rxrpc_connect_call+0xe0/0x48d0 net/rxrpc/conn_client.c:693 Code: 03 80 3c 18 00 0f 85 a9 40 00 00 48 8b 85 08 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 76 40 00 00 48 8b 5b 18 48 8d bb f0 01 00 00 48 kobject: 'loop2' (0000000084cc335d): kobject_uevent_env kobject: 'loop2' (0000000084cc335d): fill_kobj_path: path = '/devices/virtual/block/loop2' RSP: 0018:ffff88805c20f660 EFLAGS: 00010206 kobject: 'loop1' (00000000485f74a1): kobject_uevent_env RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000c4aa000 kobject: 'loop1' (00000000485f74a1): fill_kobj_path: path = '/devices/virtual/block/loop1' RDX: 0000000000000003 RSI: ffffffff86538870 RDI: 0000000000000018 RBP: ffff88805c20f7d0 R08: 00000000006000c0 R09: ffff88805d92cee0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880636bbb40 R13: ffff8880866a86e0 R14: ffff8880866a86d0 R15: ffff88805c20f8f8 FS: 00007fe07d0cc700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020600000 CR3: 0000000063275000 CR4: 00000000001426e0