syzbot

UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
smc: removing ib device syz0
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WARNING: drivers/infiniband/sw/rxe/rxe_pool.c:116 at rxe_pool_cleanup+0x48/0x60 drivers/infiniband/sw/rxe/rxe_pool.c:116, CPU#0: syz.1.18/5722
Modules linked in:
CPU: 0 UID: 0 PID: 5722 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:rxe_pool_cleanup+0x48/0x60 drivers/infiniband/sw/rxe/rxe_pool.c:116
Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 00 bb a4 f9 48 83 3b 00 75 0c e8 15 10 3d f9 5b c3 cc cc cc cc cc e8 09 10 3d f9 90 <0f> 0b 90 5b e9 cf 79 da 02 cc 66 66 66 66 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc9000d3bf038 EFLAGS: 00010293
RAX: ffffffff8883f607 RBX: ffff8880544a93d8 RCX: ffff8880001724c0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880544a9358
RBP: ffff8880544a90b8 R08: ffff8880544a87b3 R09: 1ffff1100a8950f6
R10: dffffc0000000000 R11: ffffffff888231b0 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff888231b0 R15: dffffc0000000000
FS:  00007fc0a0bf66c0(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc0a1573460 CR3: 000000005805b000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 rxe_dealloc+0x27/0xc0 drivers/infiniband/sw/rxe/rxe.c:24
 ib_dealloc_device+0x54/0x200 drivers/infiniband/core/device.c:693
 __ib_unregister_device+0x393/0x3f0 drivers/infiniband/core/device.c:1573
 ib_unregister_device_and_put+0xb8/0xf0 drivers/infiniband/core/device.c:1620
 nldev_dellink+0x2d1/0x320 drivers/infiniband/core/nldev.c:1827
 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline]
 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
 rdma_nl_rcv+0x6ae/0x980 drivers/infiniband/core/netlink.c:259
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x820 net/socket.c:2592
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2683 [inline]
 __se_sys_sendmsg net/socket.c:2681 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2681
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc0a158f7c9
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:00007fc0a0bf6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc0a17e5fa0 RCX: 00007fc0a158f7c9
RDX: 0000000020000000 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007fc0a1613f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc0a17e6038 R14: 00007fc0a17e5fa0 R15: 00007ffcdb18a758
 </TASK>