vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
general protection fault: 0000 [#1] PREEMPT SMP KASAN
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
Modules linked in:
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
CPU: 0 PID: 16093 Comm: syz-executor.3 Not tainted 4.14.202-syzkaller #0
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0033:0x45dcc7
task: ffff8880aa83e380 task.stack: ffff8880959d0000
RSP: 002b:00007f56dd872a28 EFLAGS: 00000246
RIP: 0010:vhost_umem_interval_tree_iter_first drivers/vhost/vhost.c:53 [inline]
RIP: 0010:vhost_del_umem_range drivers/vhost/vhost.c:971 [inline]
RIP: 0010:vhost_process_iotlb_msg drivers/vhost/vhost.c:1042 [inline]
RIP: 0010:vhost_chr_write_iter drivers/vhost/vhost.c:1071 [inline]
RIP: 0010:vhost_chr_write_iter+0x863/0x10f0 drivers/vhost/vhost.c:1055
 ORIG_RAX: 0000000000000010
RSP: 0018:ffff8880959d7c00 EFLAGS: 00010246
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045dcc7
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f56dd872ad8 R09: 0000000000000000
RAX: dffffc0000000000 RBX: ffff88806e1c6280 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffff859822b5 RDI: ffff88806e1c6340
R10: 00007f56dd872adc R11: 0000000000000246 R12: 0000000000000000
RBP: ffffed100dc38c61 R08: 0000000000000000 R09: 00000000000406b5
R13: 0000000000000004 R14: 0000000000000004 R15: 0000000020000350
R10: ffff8880aa83ec58 R11: ffff8880aa83e380 R12: 0000000000000002
gfs2: commit mount option requires a positive numeric argument
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff11012b3af87
FS:  00007fef13414700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000519a30 CR3: 00000000780d5000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
gfs2: can't parse mount arguments
 call_write_iter include/linux/fs.h:1778 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x44c/0x630 fs/read_write.c:482
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
gfs2: not a GFS2 filesystem
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
gfs2: invalid mount option: 000000000000000000000050x00000000000000061844674407370955161501777777777777777777777ÿÿ0xffffffffffffffff
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45de59
gfs2: can't parse mount arguments
RSP: 002b:00007fef13413c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000003b880 RCX: 000000000045de59
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffd04b6cd0f R14: 00007fef134149c0 R15: 000000000118bf2c
Code: ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 cd 06 00 00 4c 8b ab c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e9 48 c1 e9 03 <80> 3c 01 00 0f 85 96 06 00 00 49 8b 6d 00 48 85 ed 0f 84 e4 03 
RIP: vhost_umem_interval_tree_iter_first drivers/vhost/vhost.c:53 [inline] RSP: ffff8880959d7c00
RIP: vhost_del_umem_range drivers/vhost/vhost.c:971 [inline] RSP: ffff8880959d7c00
RIP: vhost_process_iotlb_msg drivers/vhost/vhost.c:1042 [inline] RSP: ffff8880959d7c00
RIP: vhost_chr_write_iter drivers/vhost/vhost.c:1071 [inline] RSP: ffff8880959d7c00
RIP: vhost_chr_write_iter+0x863/0x10f0 drivers/vhost/vhost.c:1055 RSP: ffff8880959d7c00
print_req_error: I/O error, dev loop5, sector 0
---[ end trace c7f58eb720f851ee ]---