QAT: Invalid ioctl QAT: Invalid ioctl ------------[ cut here ]------------ kernel BUG at mm/usercopy.c:72! ptm ptm1: ldisc open failed (-12), clearing slot 1 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 3217 Comm: syz-executor1 Not tainted 4.13.0-rc5+ #37 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801cb9c21c0 task.stack: ffff8801cc518000 RIP: 0010:report_usercopy mm/usercopy.c:64 [inline] RIP: 0010:__check_object_size+0x3a2/0x4f0 mm/usercopy.c:264 RSP: 0018:ffff8801cc51f8b0 EFLAGS: 00010282 RAX: 0000000000000078 RBX: ffffffff84f14ec0 RCX: 0000000000000000 RDX: 0000000000000078 RSI: ffffffff8159319e RDI: ffffed00398a3f0a RBP: ffff8801cc51f9a0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff84f14e80 R13: ffff8801cb61d772 R14: fffffffffffffffa R15: ffff8801cebf72c0 FS: 00007f4f6036f700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002071cff8 CR3: 00000001ceafb000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: check_object_size include/linux/thread_info.h:108 [inline] check_copy_size include/linux/thread_info.h:139 [inline] copy_to_iter include/linux/uio.h:105 [inline] copy_linear_skb include/net/udp.h:371 [inline] udp_recvmsg+0x56d/0x1260 net/ipv4/udp.c:1605 inet_recvmsg+0x14c/0x5f0 net/ipv4/af_inet.c:793 sock_recvmsg_nosec net/socket.c:792 [inline] sock_recvmsg+0xc9/0x110 net/socket.c:799 SYSC_recvfrom+0x2d6/0x570 net/socket.c:1788 SyS_recvfrom+0x40/0x50 net/socket.c:1760 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x4512e9 RSP: 002b:00007f4f6036ec08 EFLAGS: 00000216 ORIG_RAX: 000000000000002d RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 00000000004512e9 RDX: 0000000000000000 RSI: 0000000020556000 RDI: 0000000000000005 RBP: 0000000000000086 R08: 0000000020000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000216 R12: 0000000000000000 R13: 0000000000a6f7ef R14: 00007f4f6036f9c0 R15: 0000000000000000 Code: 48 0f 44 da e8 a0 d7 c6 ff 48 8b 85 28 ff ff ff 4d 89 f1 4c 89 e9 4c 89 e2 48 89 de 48 c7 c7 00 4f f1 84 49 89 c0 e8 83 00 b2 ff <0f> 0b 48 c7 c0 c0 4c f1 84 eb 96 48 c7 c0 00 4d f1 84 eb 8d 48 RIP: report_usercopy mm/usercopy.c:64 [inline] RSP: ffff8801cc51f8b0 RIP: __check_object_size+0x3a2/0x4f0 mm/usercopy.c:264 RSP: ffff8801cc51f8b0 ---[ end trace 6397bf4fe60fbd90 ]---