device lo entered promiscuous mode ------------[ cut here ]------------ kernel BUG at net/socket.c:223! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 4415 Comm: syz-executor0 Not tainted 4.4.146-g1396226 #15 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8800a3f66000 task.stack: ffff8800b1438000 RIP: 0010:[] [] move_addr_to_user+0x190/0x1c0 net/socket.c:223 RSP: 0018:ffff8800b143fc88 EFLAGS: 00010216 RAX: 0000000000040000 RBX: 00000000b143fd40 RCX: ffffc90000c0c000 RDX: 0000000000000066 RSI: ffffffff82f1f970 RDI: ffff8800b143fdc0 RBP: ffff8800b143fcc0 R08: ffff8800a3f66900 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8800a3f66000 R12: 0000000020000100 R13: ffff8800b143fe80 R14: ffff8800b143fdc0 R15: 0000000020000100 FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f57d7b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002e721000 CR3: 0000000099761000 CR4: 00000000001606f0 Stack: ffffffff846063c0 0000000020000080 1ffff10016287f9c ffff8800b9f44880 ffff8800b143fe80 ffff8800b143fdc0 0000000020000100 ffff8800b143fea8 ffffffff82f2152b ffff8800a3f66000 0000000020000080 0000000041b58ab3 Call Trace: [] SYSC_getpeername+0x25b/0x2d0 net/socket.c:1621 [] SyS_getpeername+0x24/0x30 net/socket.c:1602 [] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline] [] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460 [] sysenter_flags_fixed+0xd/0x1a Code: 57 32 5f fe 48 8b 7d d0 44 89 ea 4c 89 f6 e8 b8 f1 f1 fe 48 85 c0 0f 84 f7 fe ff ff b8 f2 ff ff ff e9 fe fe ff ff e8 40 3e 43 fe <0f> 0b b8 ea ff ff ff e9 ed fe ff ff 48 89 c7 e8 cc c3 5d fe 48 RIP [] move_addr_to_user+0x190/0x1c0 net/socket.c:223 RSP ---[ end trace 236a8e34b8b4bdbb ]---