------------[ cut here ]------------ kernel BUG at net/phonet/socket.c:226! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 20549 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. RSP: 0018:ffff88803d9afc38 EFLAGS: 00010216 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90005c24000 RDX: 00000000000000a4 RSI: ffffffff8765194c RDI: 0000000000000003 RBP: 1ffff11007b35f87 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000010 R15: 7fffffffffffffff FS: 00007f85eaed7700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. CR2: 0000000000000000 CR3: 000000003b8e9000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. pn_socket_connect+0x100/0x8c0 net/phonet/socket.c:240 __sys_connect+0x265/0x2c0 net/socket.c:1775 __do_sys_connect net/socket.c:1786 [inline] __se_sys_connect net/socket.c:1783 [inline] __x64_sys_connect+0x6f/0xb0 net/socket.c:1783 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f85ec5620e9 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:00007f85eaed7168 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f85ec674f60 RCX: 00007f85ec5620e9 RDX: 0000000000000010 RSI: 00000000200020c0 RDI: 0000000000000005 RBP: 00007f85ec5bc08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcfa9ff7f R14: 00007f85eaed7300 R15: 0000000000022000 Modules linked in: netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. ---[ end trace 398e94f3b388ba2b ]--- 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:ffff88803d9afc38 EFLAGS: 00010216 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90005c24000 RDX: 00000000000000a4 RSI: ffffffff8765194c RDI: 0000000000000003 RBP: 1ffff11007b35f87 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000010 R15: 7fffffffffffffff FS: 00007f85eaed7700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f67a24c6000 CR3: 000000003b8e9000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600