IPVS: ftp: loaded support on port[0] = 21
infiniband syz0: set active
infiniband syz0: added syz_tun
general protection fault, probably for non-canonical address 0xdffffc000000008e: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000470-0x0000000000000477]
CPU: 0 PID: 6795 Comm: syz-executor748 Not tainted 5.7.0-rc7-next-20200529-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rds_ib_add_one+0xab/0xcb0 net/rds/ib.c:140
Code: 80 3c 02 00 0f 85 75 0b 00 00 49 8b 9c 24 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 70 04 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f1
RSP: 0018:ffffc90001276ff8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff875e5e3a
RDX: 000000000000008e RSI: ffffffff875e5e48 RDI: 0000000000000470
RBP: ffff88809e03c000 R08: ffff88808e3d4100 R09: ffffed1013c0789f
R10: ffff88809e03c4f7 R11: ffffed1013c0789e R12: ffff88809e03c000
R13: ffff88809e03c580 R14: ffff88809e03c4e8 R15: ffffffff875e5de0
FS:  0000000001bf6880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdcd771030 CR3: 000000009a1f4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 add_client_context+0x400/0x5e0 drivers/infiniband/core/device.c:677
 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1326
 ib_register_device drivers/infiniband/core/device.c:1392 [inline]
 ib_register_device+0xa12/0xda0 drivers/infiniband/core/device.c:1353
 rxe_register_device+0x50a/0x634 drivers/infiniband/sw/rxe/rxe_verbs.c:1232
 rxe_add+0x1374/0x180a drivers/infiniband/sw/rxe/rxe.c:305
 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:539
 rxe_newlink+0x34/0x90 drivers/infiniband/sw/rxe/rxe.c:321
 nldev_newlink+0x29e/0x420 drivers/infiniband/core/nldev.c:1541
 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:195 [inline]
 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
 rdma_nl_rcv+0x591/0x900 drivers/infiniband/core/netlink.c:259
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e6/0x810 net/socket.c:2352
 ___sys_sendmsg+0x100/0x170 net/socket.c:2406
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4413d9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 6b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fffc8c7d4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004413d9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007fffc8c7d4e0 R08: 00000000bb1414ac R09: 00000000bb1414ac
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace b18465f6c8e9b146 ]---
RIP: 0010:rds_ib_add_one+0xab/0xcb0 net/rds/ib.c:140
Code: 80 3c 02 00 0f 85 75 0b 00 00 49 8b 9c 24 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 70 04 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f1
RSP: 0018:ffffc90001276ff8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff875e5e3a
RDX: 000000000000008e RSI: ffffffff875e5e48 RDI: 0000000000000470
RBP: ffff88809e03c000 R08: ffff88808e3d4100 R09: ffffed1013c0789f
R10: ffff88809e03c4f7 R11: ffffed1013c0789e R12: ffff88809e03c000
R13: ffff88809e03c580 R14: ffff88809e03c4e8 R15: ffffffff875e5de0
FS:  0000000001bf6880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdcd771030 CR3: 000000009a1f4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400