binder: 5938:5941 transaction failed 29189/-22, size 56-72 line 2832
BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
binder: 5938:5941 BC_DEAD_BINDER_DONE 0000000000000002 not found
binder: 5938:5941 BC_FREE_BUFFER uffffffffffffffff no match
binder: 5938:5941 transaction failed 29189/-22, size 56-72 line 2832
binder: undelivered TRANSACTION_ERROR: 29189
binder: undelivered TRANSACTION_ERROR: 29189
IP: __read_once_size include/linux/compiler.h:183 [inline]
IP: compound_head include/linux/page-flags.h:147 [inline]
IP: page_mapping+0x13/0x130 mm/util.c:475
PGD 20d8c1067 P4D 20d8c1067 PUD 1e5689067 PMD 0 
Oops: 0000 [#1] SMP
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 5966 Comm: syz-executor5 Not tainted 4.15.0-rc3-next-20171213+ #66
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:147 [inline]
RIP: 0010:page_mapping+0x13/0x130 mm/util.c:475
RSP: 0018:ffffc9000286fb98 EFLAGS: 00010216
RAX: 0000000000010000 RBX: 0000000000000000 RCX: ffffffff81377f83
RDX: 00000000000006cb RSI: ffffc90003977000 RDI: 0000000000000000
RBP: ffffc9000286fbb8 R08: ffff88021fd1bd00 R09: ffff8801e4836650
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801e4836580
R13: ffff8801e4836400 R14: ffff8801e5787880 R15: ffff8801e4afad78
FS:  00007fb60676e700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 00000001e026e000 CR4: 00000000001426e0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 set_page_dirty+0x1b/0x150 mm/page-writeback.c:2544
 rds_atomic_free_op+0x25/0x80 net/rds/rdma.c:481
 rds_message_purge net/rds/message.c:79 [inline]
 rds_message_put+0x174/0x1b0 net/rds/message.c:91
 rds_sendmsg+0x7ac/0xcb0 net/rds/send.c:1204
 sock_sendmsg_nosec net/socket.c:636 [inline]
 sock_sendmsg+0x51/0x70 net/socket.c:646
 ___sys_sendmsg+0x35e/0x3b0 net/socket.c:2026
 __sys_sendmsg+0x50/0x90 net/socket.c:2060
 SYSC_sendmsg net/socket.c:2071 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2067
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007fb60676dc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39
RDX: 0000000000000040 RSI: 000000002048cfe4 RDI: 0000000000000016
RBP: 00000000000000ae R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ef0f0
R13: 00000000ffffffff R14: 00007fb60676e6d4 R15: 0000000000000000
Code: 14 24 f4 ff 48 c7 c7 c8 57 a4 82 e8 46 01 24 01 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 ed 23 f4 ff <4c> 8b 63 20 41 f6 c4 01 0f 85 c8 00 00 00 e8 da 23 f4 ff 4c 8b 
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffffc9000286fb98
RIP: compound_head include/linux/page-flags.h:147 [inline] RSP: ffffc9000286fb98
RIP: page_mapping+0x13/0x130 mm/util.c:475 RSP: ffffc9000286fb98
CR2: 0000000000000020
---[ end trace 43e15c3e07cc81be ]---
sctp: [Deprecated]: syz-executor3 (pid 5987) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
sctp: [Deprecated]: syz-executor3 (pid 5995) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
sctp: [Deprecated]: syz-executor0 (pid 5997) Use of int in max_burst socket option.
Use struct sctp_assoc_value instead