kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
kobject: 'loop2' (00000000532318cf): kobject_uevent_env
CPU: 0 PID: 9622 Comm: syz-executor.4 Not tainted 4.19.61 #35
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:ffff8880a97b7660 EFLAGS: 00010206
kobject: 'loop2' (00000000532318cf): fill_kobj_path: path = '/devices/virtual/block/loop2'
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e6c3000
RDX: 0000000000000003 RSI: ffffffff86557ea0 RDI: 0000000000000018
RBP: ffff8880a97b77d0 R08: 00000000006000c0 R09: ffff88805e0289a0
kobject: 'loop1' (00000000028bddb0): kobject_uevent_env
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888081f4fb40
R13: ffff8880643f07a0 R14: ffff8880643f0790 R15: ffff8880a97b78f8
kobject: 'loop1' (00000000028bddb0): fill_kobj_path: path = '/devices/virtual/block/loop1'
FS:  00007f8e96a8d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 000000009f901000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop1' (00000000028bddb0): kobject_uevent_env
kobject: 'loop1' (00000000028bddb0): fill_kobj_path: path = '/devices/virtual/block/loop1'
 rxrpc_new_client_call+0x8e7/0x1880 net/rxrpc/call_object.c:291
 rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:595 [inline]
 rxrpc_do_sendmsg+0xfbe/0x1c8f net/rxrpc/sendmsg.c:651
 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: 'loop2' (00000000532318cf): kobject_uevent_env
kobject: 'loop2' (00000000532318cf): fill_kobj_path: path = '/devices/virtual/block/loop2'
 __sys_sendmmsg+0x1bf/0x4e0 net/socket.c:2210
 __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
 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:00007f8e96a8cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
kobject: 'loop3' (00000000ab8974ca): kobject_uevent_env
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459829
RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
kobject: 'loop3' (00000000ab8974ca): fill_kobj_path: path = '/devices/virtual/block/loop3'
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8e96a8d6d4
R13: 00000000004c6fe8 R14: 00000000004dc518 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop1' (00000000028bddb0): kobject_uevent_env
kobject: 'loop1' (00000000028bddb0): fill_kobj_path: path = '/devices/virtual/block/loop1'
---[ end trace b240aa6b33f063d2 ]---
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: 'loop0' (00000000950f2407): kobject_uevent_env
kobject: 'loop0' (00000000950f2407): fill_kobj_path: path = '/devices/virtual/block/loop0'
RSP: 0018:ffff8880a97b7660 EFLAGS: 00010206
kobject: 'loop2' (00000000532318cf): kobject_uevent_env
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e6c3000
kobject: 'loop2' (00000000532318cf): fill_kobj_path: path = '/devices/virtual/block/loop2'
RDX: 0000000000000003 RSI: ffffffff86557ea0 RDI: 0000000000000018
kobject: 'loop5' (000000001039f50d): kobject_uevent_env
RBP: ffff8880a97b77d0 R08: 00000000006000c0 R09: ffff88805e0289a0
kobject: 'loop5' (000000001039f50d): fill_kobj_path: path = '/devices/virtual/block/loop5'
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888081f4fb40
R13: ffff8880643f07a0 R14: ffff8880643f0790 R15: ffff8880a97b78f8
FS:  00007f8e96a8d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 000000009f901000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400