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kernel BUG at net/phonet/socket.c:226!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 32116 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:pn_socket_autobind net/phonet/socket.c:226 [inline]
RIP: 0010:pn_socket_autobind+0x13c/0x160 net/phonet/socket.c:215
Code: 44 05 00 00 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 26 48 83 c4 60 44 89 e0 5b 5d 41 5c 41 5d c3 e8 24 6c fd f9 <0f> 0b e8 ed 47 33 fa eb 9f e8 06 49 33 fa e9 6d ff ff ff e8 9c 8c
RSP: 0018:ffff88804701f9a8 EFLAGS: 00010216
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90008c34000
RDX: 000000000000010d RSI: ffffffff8765194c RDI: 0000000000000003
RBP: 1ffff11008e03f35 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888090fe3a00 R15: ffff88804701fdd8
FS:  00007ff717100700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c018ddd000 CR3: 00000000a091c000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 pn_socket_sendmsg+0x40/0xd0 net/phonet/socket.c:436
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227
 __sys_sendmmsg+0x195/0x470 net/socket.c:2322
 __do_sys_sendmmsg net/socket.c:2351 [inline]
 __se_sys_sendmmsg net/socket.c:2348 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ff71878c5a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff717100168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007ff7188adf80 RCX: 00007ff71878c5a9
RDX: 000000000000000a RSI: 0000000020009c80 RDI: 0000000000000003
RBP: 00007ff7187e7580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000004000840 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd79dcc82f R14: 00007ff717100300 R15: 0000000000022000
Modules linked in:
netlink: 'syz-executor.4': attribute type 2 has an invalid length.
---[ end trace 998540f5273b5e70 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:226 [inline]
RIP: 0010:pn_socket_autobind+0x13c/0x160 net/phonet/socket.c:215
Code: 44 05 00 00 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 26 48 83 c4 60 44 89 e0 5b 5d 41 5c 41 5d c3 e8 24 6c fd f9 <0f> 0b e8 ed 47 33 fa eb 9f e8 06 49 33 fa e9 6d ff ff ff e8 9c 8c
RSP: 0018:ffff88804701f9a8 EFLAGS: 00010216
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90008c34000
RDX: 000000000000010d RSI: ffffffff8765194c RDI: 0000000000000003
RBP: 1ffff11008e03f35 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888090fe3a00 R15: ffff88804701fdd8
FS:  00007ff717100700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b3132d1398 CR3: 00000000a091c000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400