Warning: Permanently added '10.128.1.60' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 744.463624][ T8517] loop0: detected capacity change from 0 to 19169280 [ 744.478730][ T8517] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 744.487196][ T8517] gfs2: fsid=syz:syz: Now mounting FS... [ 744.497603][ T8517] gfs2: fsid=syz:syz.0: fatal: invalid metadata block [ 744.497603][ T8517] bh = 2072 (magic number) [ 744.497603][ T8517] function = gfs2_meta_indirect_buffer, file = fs/gfs2/meta_io.c, line = 488 [ 744.518367][ T8517] gfs2: fsid=syz:syz.0: about to withdraw this file system [ 744.526083][ T8517] general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN [ 744.537801][ T8517] KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077] [ 744.546217][ T8517] CPU: 0 PID: 8517 Comm: syz-executor432 Not tainted 5.10.0-rc5-next-20201127-syzkaller #0 [ 744.556198][ T8517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 744.566266][ T8517] RIP: 0010:gfs2_withdraw.cold+0xff/0xc14 [ 744.571977][ T8517] 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 34 32 f6 f8 4d 8b 7f 70 b8 ff ff 37 00 48 c1 [ 744.591575][ T8517] RSP: 0018:ffffc9000175f370 EFLAGS: 00010202 [ 744.597619][ T8517] RAX: dffffc0000000000 RBX: ffff88802aa0c000 RCX: 0000000000000000 [ 744.605567][ T8517] RDX: 000000000000000e RSI: ffffffff88bd6292 RDI: 0000000000000070 [ 744.613629][ T8517] RBP: ffff88802aa0c2c5 R08: 0000000000000038 R09: 0000000000000000 [ 744.621772][ T8517] R10: ffffffff88bd6281 R11: 0000000000000000 R12: ffff88802aa0c0a8 [ 744.629924][ T8517] R13: ffff88802aa0c348 R14: ffffffff8990b8c0 R15: 0000000000000000 [ 744.637901][ T8517] FS: 0000000001f62880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 744.647099][ T8517] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 744.653677][ T8517] CR2: 00007ffcf9910000 CR3: 0000000012442000 CR4: 00000000001506f0 [ 744.661643][ T8517] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 744.669603][ T8517] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 744.678255][ T8517] Call Trace: [ 744.681547][ T8517] gfs2_meta_check_ii+0x68/0xa0 [ 744.686382][ T8517] gfs2_meta_indirect_buffer+0x3a3/0x3f0 [ 744.692011][ T8517] ? gfs2_journal_wipe+0xc00/0xc00 [ 744.697473][ T8517] gfs2_inode_refresh+0x95/0xdf0 [ 744.702386][ T8517] ? inode_go_sync+0x560/0x560 [ 744.707134][ T8517] ? lock_downgrade+0x6d0/0x6d0 [ 744.713268][ T8517] inode_go_lock+0x309/0x4a0 [ 744.717837][ T8517] do_promote+0x4a0/0xb70 [ 744.722167][ T8517] finish_xmote+0x671/0xe40 [ 744.726671][ T8517] do_xmote+0x821/0xbc0 [ 744.730821][ T8517] run_queue+0x323/0x680 [ 744.735920][ T8517] gfs2_glock_nq+0x70a/0x11a0 [ 744.740590][ T8517] gfs2_lookupi+0x314/0x630 [ 744.745094][ T8517] ? gfs2_lookup_by_inum+0x100/0x100 [ 744.750529][ T8517] ? gfs2_lookupi+0x30c/0x630 [ 744.755181][ T8517] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 744.760899][ T8517] ? crc32_body+0x348/0x5f0 [ 744.765380][ T8517] gfs2_lookup_simple+0x99/0xe0 [ 744.770217][ T8517] ? gfs2_rename2+0xa0/0xa0 [ 744.774715][ T8517] ? enable_ptr_key_workfn+0x30/0x30 [ 744.779976][ T8517] init_inodes+0x3cb/0x2650 [ 744.784736][ T8517] ? do_raw_spin_lock+0x120/0x2b0 [ 744.789738][ T8517] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 744.796932][ T8517] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 744.803147][ T8517] ? vsnprintf+0x2cc/0x14f0 [ 744.807718][ T8517] ? end_bio_io_page+0x100/0x100 [ 744.812657][ T8517] ? pointer+0x930/0x930 [ 744.816881][ T8517] ? gfs2_glock_dq_uninit+0x87/0x100 [ 744.822141][ T8517] ? init_sb+0x9c6/0xd30 [ 744.826360][ T8517] ? snprintf+0xbb/0xf0 [ 744.830490][ T8517] ? vsprintf+0x30/0x30 [ 744.834636][ T8517] ? gfs2_read_super+0x1140/0x1140 [ 744.839739][ T8517] ? __debugfs_create_file+0x33d/0x4c0 [ 744.845698][ T8517] gfs2_fill_super+0x1a84/0x24e0 [ 744.850617][ T8517] ? gfs2_reconfigure+0x1030/0x1030 [ 744.855793][ T8517] ? lock_downgrade+0x6d0/0x6d0 [ 744.860641][ T8517] ? gfs2_glock_nq_num+0xf9/0x240 [ 744.865643][ T8517] ? snprintf+0xbb/0xf0 [ 744.869775][ T8517] ? vsprintf+0x30/0x30 [ 744.873911][ T8517] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 744.879619][ T8517] ? set_blocksize+0x1c1/0x400 [ 744.884372][ T8517] get_tree_bdev+0x421/0x740 [ 744.889164][ T8517] ? gfs2_reconfigure+0x1030/0x1030 [ 744.894719][ T8517] gfs2_get_tree+0x4a/0x270 [ 744.899221][ T8517] vfs_get_tree+0x89/0x2f0 [ 744.903635][ T8517] path_mount+0x12ae/0x1e70 [ 744.908119][ T8517] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 744.914423][ T8517] ? strncpy_from_user+0x2a0/0x3e0 [ 744.919509][ T8517] ? finish_automount+0xac0/0xac0 [ 744.924522][ T8517] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 744.930741][ T8517] ? getname_flags.part.0+0x1dd/0x4f0 [ 744.936097][ T8517] __x64_sys_mount+0x27f/0x300 [ 744.940854][ T8517] ? copy_mnt_ns+0xae0/0xae0 [ 744.945448][ T8517] ? syscall_enter_from_user_mode+0x1d/0x50 [ 744.951322][ T8517] do_syscall_64+0x2d/0x70 [ 744.956259][ T8517] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 744.962142][ T8517] RIP: 0033:0x45b4ca [ 744.966039][ T8517] 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 [ 744.986399][ T8517] RSP: 002b:00007ffcf990f008 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 744.994804][ T8517] RAX: ffffffffffffffda RBX: 00007ffcf990f060 RCX: 000000000045b4ca [ 745.002767][ T8517] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcf990f020 [ 745.010743][ T8517] RBP: 00007ffcf990f020 R08: 00007ffcf990f060 R09: 00007ffc00000015 [ 745.018689][ T8517] R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000091c [ 745.026641][ T8517] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 745.034610][ T8517] Modules linked in: [ 745.039308][ T8517] ---[ end trace 968ffa9b016ef145 ]--- [ 745.045691][ T8517] RIP: 0010:gfs2_withdraw.cold+0xff/0xc14 [ 745.051424][ T8517] 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 34 32 f6 f8 4d 8b 7f 70 b8 ff ff 37 00 48 c1 [ 745.071498][ T8517] RSP: 0018:ffffc9000175f370 EFLAGS: 00010202 [ 745.077656][ T8517] RAX: dffffc0000000000 RBX: ffff88802aa0c000 RCX: 0000000000000000 [ 745.093490][ T8517] RDX: 000000000000000e RSI: ffffffff88bd6292 RDI: 0000000000000070 [ 745.101486][ T8517] RBP: ffff88802aa0c2c5 R08: 0000000000000038 R09: 0000000000000000 [ 745.110015][ T8517] R10: ffffffff88bd6281 R11: 0000000000000000 R12: ffff88802aa0c0a8 [ 745.118037][ T8517] R13: ffff88802aa0c348 R14: ffffffff8990b8c0 R15: 0000000000000000 [ 745.126060][ T8517] FS: 0000000001f62880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 745.135063][ T8517] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 745.141648][ T8517] CR2: 00007ffcf9910000 CR3: 0000000012442000 CR4: 00000000001506f0 [ 745.149676][ T8517] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 745.158446][ T8517] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 745.166810][ T8517] Kernel panic - not syncing: Fatal exception [ 745.173522][ T8517] Kernel Offset: disabled [ 745.177850][ T8517] Rebooting in 86400 seconds..