Warning: Permanently added '10.128.0.187' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 621.709477][ T8491] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 621.718687][ T8491] gfs2: fsid=syz:syz: Now mounting FS... [ 621.728730][ T8491] gfs2: fsid=syz:syz.0: fatal: invalid metadata block [ 621.728730][ T8491] bh = 2072 (magic number) [ 621.728730][ T8491] function = gfs2_meta_indirect_buffer, file = fs/gfs2/meta_io.c, line = 488 [ 621.749270][ T8491] gfs2: fsid=syz:syz.0: about to withdraw this file system [ 621.757274][ T8491] general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN [ 621.768996][ T8491] KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077] [ 621.777407][ T8491] CPU: 1 PID: 8491 Comm: syz-executor738 Not tainted 5.10.0-rc2-next-20201106-syzkaller #0 [ 621.787351][ T8491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 621.797546][ T8491] RIP: 0010:gfs2_withdraw.cold+0xff/0xc14 [ 621.803244][ T8491] Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 1c 02 00 00 4c 8b bb 08 09 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 04 e1 fb f8 4d 8b 7f 70 b8 ff ff 37 00 48 c1 [ 621.823186][ T8491] RSP: 0018:ffffc900015ff378 EFLAGS: 00010202 [ 621.829233][ T8491] RAX: dffffc0000000000 RBX: ffff8880271e4000 RCX: ffffffff88b5f331 [ 621.837184][ T8491] RDX: 000000000000000e RSI: ffffffff88b5f342 RDI: 0000000000000070 [ 621.845149][ T8491] RBP: ffff8880271e42c5 R08: 0000000000000038 R09: ffff8880b9f30aa7 [ 621.853107][ T8491] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880271e40a8 [ 621.861077][ T8491] R13: ffff8880271e4348 R14: ffffffff89901d40 R15: 0000000000000000 [ 621.869523][ T8491] FS: 00000000013ce880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 621.878443][ T8491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 621.885011][ T8491] CR2: 0000000020000000 CR3: 00000000143c5000 CR4: 00000000001506e0 [ 621.892980][ T8491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 621.900932][ T8491] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 621.909079][ T8491] Call Trace: [ 621.912567][ T8491] gfs2_meta_check_ii+0x68/0xa0 [ 621.917449][ T8491] gfs2_meta_indirect_buffer+0x3a3/0x3f0 [ 621.923068][ T8491] ? gfs2_journal_wipe+0xc00/0xc00 [ 621.928234][ T8491] gfs2_inode_refresh+0x95/0xdf0 [ 621.933169][ T8491] ? inode_go_sync+0x560/0x560 [ 621.938060][ T8491] ? lock_downgrade+0x6d0/0x6d0 [ 621.942894][ T8491] inode_go_lock+0x309/0x4a0 [ 621.947478][ T8491] do_promote+0x4a0/0xb70 [ 621.951793][ T8491] finish_xmote+0x671/0xe40 [ 621.956283][ T8491] do_xmote+0x821/0xbc0 [ 621.960420][ T8491] run_queue+0x323/0x680 [ 621.964649][ T8491] gfs2_glock_nq+0x702/0x1190 [ 621.969324][ T8491] gfs2_lookupi+0x314/0x630 [ 621.973808][ T8491] ? gfs2_lookup_by_inum+0x100/0x100 [ 621.979074][ T8491] ? gfs2_lookupi+0x30c/0x630 [ 621.983837][ T8491] ? crc32_body+0x348/0x5f0 [ 621.988346][ T8491] gfs2_lookup_simple+0x99/0xe0 [ 621.993464][ T8491] ? gfs2_lookupi+0x630/0x630 [ 621.998201][ T8491] ? enable_ptr_key_workfn+0x30/0x30 [ 622.003467][ T8491] init_inodes+0x3cb/0x2650 [ 622.007955][ T8491] ? do_raw_spin_lock+0x120/0x2b0 [ 622.012962][ T8491] ? vsnprintf+0x2cc/0x14f0 [ 622.017449][ T8491] ? end_bio_io_page+0x100/0x100 [ 622.022513][ T8491] ? pointer+0x930/0x930 [ 622.026747][ T8491] ? gfs2_glock_dq_uninit+0x87/0x100 [ 622.032018][ T8491] ? init_sb+0x9c6/0xd30 [ 622.036248][ T8491] ? snprintf+0xbb/0xf0 [ 622.040396][ T8491] ? vsprintf+0x30/0x30 [ 622.044556][ T8491] ? gfs2_read_super+0x1140/0x1140 [ 622.049746][ T8491] ? __debugfs_create_file+0x33d/0x4c0 [ 622.055209][ T8491] gfs2_fill_super+0x199c/0x23f0 [ 622.060134][ T8491] ? gfs2_reconfigure+0x1030/0x1030 [ 622.065324][ T8491] ? lock_downgrade+0x6d0/0x6d0 [ 622.070157][ T8491] ? gfs2_glock_nq_num+0xf9/0x240 [ 622.075177][ T8491] ? snprintf+0xbb/0xf0 [ 622.079315][ T8491] ? vsprintf+0x30/0x30 [ 622.083548][ T8491] ? wait_for_completion_io+0x260/0x260 [ 622.089154][ T8491] ? set_blocksize+0x1c1/0x400 [ 622.093924][ T8491] get_tree_bdev+0x421/0x740 [ 622.098498][ T8491] ? gfs2_reconfigure+0x1030/0x1030 [ 622.103671][ T8491] gfs2_get_tree+0x4a/0x270 [ 622.108160][ T8491] vfs_get_tree+0x89/0x2f0 [ 622.112583][ T8491] path_mount+0x12ae/0x1e70 [ 622.117081][ T8491] ? strncpy_from_user+0x29e/0x3a0 [ 622.122170][ T8491] ? finish_automount+0xac0/0xac0 [ 622.127234][ T8491] ? getname_flags.part.0+0x1dd/0x4f0 [ 622.132602][ T8491] __x64_sys_mount+0x27f/0x300 [ 622.137351][ T8491] ? copy_mnt_ns+0xae0/0xae0 [ 622.141964][ T8491] ? syscall_enter_from_user_mode+0x1d/0x50 [ 622.147837][ T8491] do_syscall_64+0x2d/0x70 [ 622.152247][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 622.158119][ T8491] RIP: 0033:0x45b45a [ 622.161995][ T8491] 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 [ 622.181581][ T8491] RSP: 002b:00007ffed9604028 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 622.189971][ T8491] RAX: ffffffffffffffda RBX: 00007ffed9604080 RCX: 000000000045b45a [ 622.197924][ T8491] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffed9604040 [ 622.205909][ T8491] RBP: 00007ffed9604040 R08: 00007ffed9604080 R09: 00007ffe00000015 [ 622.213864][ T8491] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000919 [ 622.222188][ T8491] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 622.230141][ T8491] Modules linked in: [ 622.235743][ T8491] ---[ end trace 44bf6a8778581b72 ]--- [ 622.241277][ T8491] RIP: 0010:gfs2_withdraw.cold+0xff/0xc14 [ 622.247282][ T8491] Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 1c 02 00 00 4c 8b bb 08 09 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 04 e1 fb f8 4d 8b 7f 70 b8 ff ff 37 00 48 c1 [ 622.267140][ T8491] RSP: 0018:ffffc900015ff378 EFLAGS: 00010202 [ 622.273240][ T8491] RAX: dffffc0000000000 RBX: ffff8880271e4000 RCX: ffffffff88b5f331 [ 622.281390][ T8491] RDX: 000000000000000e RSI: ffffffff88b5f342 RDI: 0000000000000070 [ 622.289426][ T8491] RBP: ffff8880271e42c5 R08: 0000000000000038 R09: ffff8880b9f30aa7 [ 622.297444][ T8491] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880271e40a8 [ 622.305466][ T8491] R13: ffff8880271e4348 R14: ffffffff89901d40 R15: 0000000000000000 [ 622.313787][ T8491] FS: 00000000013ce880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 622.322783][ T8491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 622.329449][ T8491] CR2: 00007fa2680410d8 CR3: 00000000143c5000 CR4: 00000000001506f0 [ 622.337491][ T8491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 622.345611][ T8491] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 622.353621][ T8491] Kernel panic - not syncing: Fatal exception [ 622.360740][ T8491] Kernel Offset: disabled [ 622.365294][ T8491] Rebooting in 86400 seconds..