Oops: general protection fault, probably for non-canonical address 0xfbd5a5d5a0000003: 0000 [#1] SMP KASAN PTI
KASAN: maybe wild-memory-access in range [0xdead4ead00000018-0xdead4ead0000001f]
CPU: 1 UID: 0 PID: 6020 Comm: syz.0.20 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline]
RIP: 0010:smc_diag_dump_proto+0x4c8/0x1ff0 net/smc/smc_diag.c:217
Code: 80 3c 2f 00 74 08 48 89 df e8 94 ce f9 f6 4c 8b 23 4d 85 e4 0f 84 26 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 69 ce f9 f6 4d 8b 2c 24 49 83 c5
RSP: 0018:ffffc90002e3ef40 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000003 RBX: ffff88811ea92048 RCX: ffff888107933980
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffc90002e3f2b0 R08: ffff88811ea91a5f R09: 1ffff11023d5234b
R10: dffffc0000000000 R11: ffffed1023d5234c R12: dead4ead00000018
R13: dffffc0000000000 R14: ffff88811ea91a00 R15: 1ffff11023d52409
FS:  00007fe63fe4e6c0(0000) GS:ffff8881a3c14000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000e000 CR3: 0000000026672000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 smc_diag_dump+0x59/0xa0 net/smc/smc_diag.c:236
 netlink_dump+0x6e4/0xe90 net/netlink/af_netlink.c:2327
 __netlink_dump_start+0x5cb/0x7e0 net/netlink/af_netlink.c:2442
 netlink_dump_start include/linux/netlink.h:341 [inline]
 smc_diag_handler_dump+0x178/0x210 net/smc/smc_diag.c:251
 sock_diag_rcv_msg+0x4cc/0x600 net/core/sock_diag.c:-1
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe63ef8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe63fe4e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe63f1c6090 RCX: 00007fe63ef8ebe9
RDX: 0000000000000600 RSI: 0000200000000540 RDI: 0000000000000005
RBP: 00007fe63f011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe63f1c6128 R14: 00007fe63f1c6090 R15: 00007ffe270b4d18
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline]
RIP: 0010:smc_diag_dump_proto+0x4c8/0x1ff0 net/smc/smc_diag.c:217
Code: 80 3c 2f 00 74 08 48 89 df e8 94 ce f9 f6 4c 8b 23 4d 85 e4 0f 84 26 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 69 ce f9 f6 4d 8b 2c 24 49 83 c5
RSP: 0018:ffffc90002e3ef40 EFLAGS: 00010a06
RAX: 1bd5a9d5a0000003 RBX: ffff88811ea92048 RCX: ffff888107933980
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffc90002e3f2b0 R08: ffff88811ea91a5f R09: 1ffff11023d5234b
R10: dffffc0000000000 R11: ffffed1023d5234c R12: dead4ead00000018
R13: dffffc0000000000 R14: ffff88811ea91a00 R15: 1ffff11023d52409
FS:  00007fe63fe4e6c0(0000) GS:ffff8881a3c14000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000e000 CR3: 0000000026672000 CR4: 00000000000006f0
----------------
Code disassembly (best guess):
   0:	80 3c 2f 00          	cmpb   $0x0,(%rdi,%rbp,1)
   4:	74 08                	je     0xe
   6:	48 89 df             	mov    %rbx,%rdi
   9:	e8 94 ce f9 f6       	call   0xf6f9cea2
   e:	4c 8b 23             	mov    (%rbx),%r12
  11:	4d 85 e4             	test   %r12,%r12
  14:	0f 84 26 02 00 00    	je     0x240
  1a:	48 89 5c 24 38       	mov    %rbx,0x38(%rsp)
  1f:	49 83 c4 18          	add    $0x18,%r12
  23:	4c 89 e0             	mov    %r12,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 69 ce f9 f6       	call   0xf6f9cea2
  39:	4d 8b 2c 24          	mov    (%r12),%r13
  3d:	49                   	rex.WB
  3e:	83                   	.byte 0x83
  3f:	c5                   	.byte 0xc5
