Warning: Permanently added '10.128.0.182' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 1144.148931][   T27] audit: type=1400 audit(1602413838.691:8): avc:  denied  { execmem } for  pid=6881 comm="syz-executor486" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[ 1144.178750][ T6881] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 1144.189696][ T6881] gfs2: fsid=syz:syz: Now mounting FS...
[ 1144.199723][ T6881] gfs2: fsid=syz:syz.0: fatal: invalid metadata block
[ 1144.199723][ T6881]   bh = 2072 (magic number)
[ 1144.199723][ T6881]   function = gfs2_meta_indirect_buffer, file = fs/gfs2/meta_io.c, line = 417
[ 1144.221090][ T6881] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 1144.228481][ T6881] general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN
[ 1144.240162][ T6881] KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]
[ 1144.248544][ T6881] CPU: 0 PID: 6881 Comm: syz-executor486 Not tainted 5.9.0-rc8-syzkaller #0
[ 1144.257183][ T6881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 1144.267276][ T6881] RIP: 0010:gfs2_withdraw.cold+0xff/0xc0e
[ 1144.272972][ T6881] Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 19 02 00 00 4c 8b bb a0 08 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7f 70 48 89 fa 48 c1 ea 03 <80> 3c 02 00 74 05 e8 b7 52 68 fe 4d 8b 7f 70 b8 ff ff 37 00 48 c1
[ 1144.292551][ T6881] RSP: 0018:ffffc900024973b8 EFLAGS: 00010202
[ 1144.298625][ T6881] RAX: dffffc0000000000 RBX: ffff88809dd00000 RCX: ffffffff834ec45e
[ 1144.306568][ T6881] RDX: 000000000000000e RSI: ffffffff834ec46f RDI: 0000000000000070
[ 1144.314513][ T6881] RBP: ffff88809dd0026d R08: 0000000000000038 R09: ffff8880ae420f8b
[ 1144.322492][ T6881] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809dd00050
[ 1144.330472][ T6881] R13: ffff88809dd002f0 R14: ffffffff88cc15e0 R15: 0000000000000000
[ 1144.338453][ T6881] FS:  000000000256d880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
[ 1144.347367][ T6881] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1144.353936][ T6881] CR2: 00007fadec462000 CR3: 00000000922e5000 CR4: 00000000001506f0
[ 1144.361893][ T6881] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1144.369843][ T6881] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1144.377791][ T6881] Call Trace:
[ 1144.381064][ T6881]  gfs2_meta_check_ii+0x68/0xa0
[ 1144.385935][ T6881]  gfs2_meta_indirect_buffer+0x3a3/0x3f0
[ 1144.391542][ T6881]  ? gfs2_meta_wipe+0x1b0/0x1b0
[ 1144.396379][ T6881]  ? lock_is_held_type+0xbb/0xf0
[ 1144.401291][ T6881]  gfs2_inode_refresh+0x95/0xdf0
[ 1144.406201][ T6881]  ? gfs2_glock2rgrp+0x60/0x60
[ 1144.410938][ T6881]  ? lock_downgrade+0x830/0x830
[ 1144.415759][ T6881]  ? lock_acquire+0x1f3/0xaf0
[ 1144.420408][ T6881]  ? finish_xmote+0x65/0xf40
[ 1144.425003][ T6881]  inode_go_lock+0x309/0x49f
[ 1144.429611][ T6881]  do_promote+0x4a0/0xc10
[ 1144.433917][ T6881]  finish_xmote+0x4ed/0xf40
[ 1144.438392][ T6881]  do_xmote+0x812/0xba0
[ 1144.442544][ T6881]  run_queue+0x323/0x680
[ 1144.446759][ T6881]  gfs2_glock_nq+0x716/0x11b0
[ 1144.451415][ T6881]  gfs2_lookupi+0x314/0x630
[ 1144.455904][ T6881]  ? gfs2_lookup_by_inum+0x100/0x100
[ 1144.461159][ T6881]  ? gfs2_lookupi+0x30c/0x630
[ 1144.465896][ T6881]  ? crc32_body+0x348/0x5f0
[ 1144.470376][ T6881]  gfs2_lookup_simple+0x99/0xe0
[ 1144.475195][ T6881]  ? gfs2_lookupi+0x630/0x630
[ 1144.479852][ T6881]  ? do_raw_spin_lock+0x120/0x2b0
[ 1144.484859][ T6881]  init_inodes+0x367/0x1f40
[ 1144.489366][ T6881]  ? vsnprintf+0x2cc/0x14f0
[ 1144.493842][ T6881]  ? pointer+0x970/0x970
[ 1144.498059][ T6881]  ? end_bio_io_page+0x100/0x100
[ 1144.502969][ T6881]  ? init_sb+0x9ba/0xd30
[ 1144.507181][ T6881]  ? snprintf+0xbb/0xf0
[ 1144.511318][ T6881]  ? vsprintf+0x30/0x30
[ 1144.515446][ T6881]  ? gfs2_read_super+0x1080/0x1080
[ 1144.520571][ T6881]  ? __debugfs_create_file+0x36b/0x4f0
[ 1144.526004][ T6881]  gfs2_fill_super+0x195e/0x254a
[ 1144.530917][ T6881]  ? gfs2_reconfigure+0x1020/0x1020
[ 1144.536090][ T6881]  ? lock_downgrade+0x830/0x830
[ 1144.540926][ T6881]  ? gfs2_glock_nq_num+0xf9/0x240
[ 1144.545924][ T6881]  ? snprintf+0xbb/0xf0
[ 1144.550051][ T6881]  ? vsprintf+0x30/0x30
[ 1144.554223][ T6881]  ? wait_for_completion+0x260/0x260
[ 1144.559483][ T6881]  ? set_blocksize+0x1c1/0x400
[ 1144.564224][ T6881]  get_tree_bdev+0x421/0x740
[ 1144.568788][ T6881]  ? gfs2_reconfigure+0x1020/0x1020
[ 1144.573976][ T6881]  gfs2_get_tree+0x4a/0x270
[ 1144.578451][ T6881]  vfs_get_tree+0x89/0x2f0
[ 1144.582840][ T6881]  path_mount+0x1387/0x20a0
[ 1144.587366][ T6881]  ? strncpy_from_user+0x2bf/0x3e0
[ 1144.592452][ T6881]  ? copy_mount_string+0x40/0x40
[ 1144.597364][ T6881]  ? getname_flags.part.0+0x1dd/0x4f0
[ 1144.602710][ T6881]  __x64_sys_mount+0x27f/0x300
[ 1144.607467][ T6881]  ? copy_mnt_ns+0xa60/0xa60
[ 1144.612036][ T6881]  ? check_preemption_disabled+0x50/0x130
[ 1144.617741][ T6881]  ? syscall_enter_from_user_mode+0x1d/0x60
[ 1144.623609][ T6881]  do_syscall_64+0x2d/0x70
[ 1144.628000][ T6881]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1144.633863][ T6881] RIP: 0033:0x45b3ea
[ 1144.637732][ T6881] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00
[ 1144.657310][ T6881] RSP: 002b:00007ffd005ce068 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5
[ 1144.665698][ T6881] RAX: ffffffffffffffda RBX: 00007ffd005ce0c0 RCX: 000000000045b3ea
[ 1144.673642][ T6881] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd005ce080
[ 1144.681585][ T6881] RBP: 00007ffd005ce080 R08: 00007ffd005ce0c0 R09: 00007ffd00000015
[ 1144.689526][ T6881] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000916
[ 1144.697468][ T6881] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[ 1144.705441][ T6881] Modules linked in:
[ 1144.720041][ T6881] ---[ end trace 67c3b0e803514fb6 ]---
[ 1144.725526][ T6881] RIP: 0010:gfs2_withdraw.cold+0xff/0xc0e
[ 1144.731310][ T6881] Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 19 02 00 00 4c 8b bb a0 08 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7f 70 48 89 fa 48 c1 ea 03 <80> 3c 02 00 74 05 e8 b7 52 68 fe 4d 8b 7f 70 b8 ff ff 37 00 48 c1
[ 1144.751036][ T6881] RSP: 0018:ffffc900024973b8 EFLAGS: 00010202
[ 1144.757081][ T6881] RAX: dffffc0000000000 RBX: ffff88809dd00000 RCX: ffffffff834ec45e
[ 1144.765080][ T6881] RDX: 000000000000000e RSI: ffffffff834ec46f RDI: 0000000000000070
[ 1144.773108][ T6881] RBP: ffff88809dd0026d R08: 0000000000000038 R09: ffff8880ae420f8b
[ 1144.781118][ T6881] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809dd00050
[ 1144.789095][ T6881] R13: ffff88809dd002f0 R14: ffffffff88cc15e0 R15: 0000000000000000
[ 1144.797087][ T6881] FS:  000000000256d880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
[ 1144.806053][ T6881] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1144.812659][ T6881] CR2: 00007fadec467000 CR3: 00000000922e5000 CR4: 00000000001506f0
[ 1144.820659][ T6881] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1144.828621][ T6881] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1144.836603][ T6881] Kernel panic - not syncing: Fatal exception
[ 1144.843890][ T6881] Kernel Offset: disabled
[ 1144.848204][ T6881] Rebooting in 86400 seconds..