kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7960 Comm: kworker/0:5 Not tainted 4.20.0-rc2+ #119
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
RIP: 0010:kernel_accept+0x34/0x310 net/socket.c:3242
Code: d6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 08 e8 41 83 5b fb 49 8d 7d 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b
RSP: 0018:ffff88817fab75b0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8881bc3a09c0 RCX: 1ffff11034551dd1
RDX: 0000000000000004 RSI: ffffffff862407af RDI: 0000000000000020
RBP: ffff88817fab75e0 R08: ffff8881a2a8ee88 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881a2a8e5c0 R12: ffff88817fab7690
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881b6055178
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000728020 CR3: 00000001bc68b000 CR4: 00000000001426f0
DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_clcsock_accept net/smc/af_smc.c:834 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1302
 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 34c3f6773f6746f8 ]---
RIP: 0010:kernel_accept+0x34/0x310 net/socket.c:3242
Code: d6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 08 e8 41 83 5b fb 49 8d 7d 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b
audit: type=1800 audit(1542575025.103:278): pid=8106 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor4" name="file0" dev="sda1" ino=16613 res=0
RSP: 0018:ffff88817fab75b0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8881bc3a09c0 RCX: 1ffff11034551dd1
RDX: 0000000000000004 RSI: ffffffff862407af RDI: 0000000000000020
RBP: ffff88817fab75e0 R08: ffff8881a2a8ee88 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881a2a8e5c0 R12: ffff88817fab7690
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881b6055178
audit: type=1804 audit(1542575025.153:279): pid=8106 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor4" name="/root/syzkaller-testdir893304143/syzkaller.TkTImD/488/file0" dev="sda1" ino=16613 res=1
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
audit: type=1800 audit(1542575025.153:280): pid=8106 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor4" name="file0" dev="sda1" ino=16613 res=0
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004ce5a8 CR3: 00000001a3831000 CR4: 00000000001426f0
DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400