Warning: Permanently added '10.128.0.137' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 781.810575][ T8485] loop0: detected capacity change from 0 to 81289216 [ 781.828534][ T8485] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 781.837274][ T8485] gfs2: fsid=syz:syz: Now mounting FS... [ 781.848400][ T8485] gfs2: fsid=syz:syz.0: fatal: invalid metadata block [ 781.848400][ T8485] bh = 2075 (magic number) [ 781.848400][ T8485] function = gfs2_meta_indirect_buffer, file = fs/gfs2/meta_io.c, line = 488 [ 781.874713][ T8485] gfs2: fsid=syz:syz.0: about to withdraw this file system [ 781.883388][ T8485] general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN [ 781.895302][ T8485] KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077] [ 781.903811][ T8485] CPU: 1 PID: 8485 Comm: syz-executor989 Not tainted 5.10.0-rc5-next-20201126-syzkaller #0 [ 781.913798][ T8485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 781.924158][ T8485] RIP: 0010:gfs2_withdraw.cold+0xff/0xc14 [ 781.929881][ T8485] 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 30 f6 f8 4d 8b 7f 70 b8 ff ff 37 00 48 c1 [ 781.949505][ T8485] RSP: 0018:ffffc9000167f370 EFLAGS: 00010202 [ 781.955578][ T8485] RAX: dffffc0000000000 RBX: ffff88801a098000 RCX: ffffffff88bd5281 [ 781.963575][ T8485] RDX: 000000000000000e RSI: ffffffff88bd5292 RDI: 0000000000000070 [ 781.972000][ T8485] RBP: ffff88801a0982c5 R08: 0000000000000038 R09: ffff8880b9f30967 [ 781.980056][ T8485] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801a0980a8 [ 781.988893][ T8485] R13: ffff88801a098348 R14: ffffffff8990b8c0 R15: 0000000000000000 [ 781.998275][ T8485] FS: 000000000199b880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 782.007298][ T8485] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 782.014329][ T8485] CR2: 0000000020000000 CR3: 00000000119f5000 CR4: 00000000001506e0 [ 782.022314][ T8485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 782.030370][ T8485] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 782.039216][ T8485] Call Trace: [ 782.042607][ T8485] gfs2_meta_check_ii+0x68/0xa0 [ 782.047488][ T8485] gfs2_meta_indirect_buffer+0x3a3/0x3f0 [ 782.053142][ T8485] ? gfs2_journal_wipe+0xc00/0xc00 [ 782.058275][ T8485] gfs2_inode_refresh+0x95/0xdf0 [ 782.063213][ T8485] ? inode_go_sync+0x560/0x560 [ 782.069882][ T8485] ? lock_downgrade+0x6d0/0x6d0 [ 782.074727][ T8485] inode_go_lock+0x309/0x4a0 [ 782.079414][ T8485] do_promote+0x4a0/0xb70 [ 782.083744][ T8485] finish_xmote+0x671/0xe40 [ 782.088261][ T8485] do_xmote+0x821/0xbc0 [ 782.092515][ T8485] run_queue+0x323/0x680 [ 782.096946][ T8485] gfs2_glock_nq+0x70a/0x11a0 [ 782.101908][ T8485] gfs2_lookupi+0x314/0x630 [ 782.107973][ T8485] ? gfs2_lookup_by_inum+0x100/0x100 [ 782.113255][ T8485] ? gfs2_lookupi+0x30c/0x630 [ 782.118120][ T8485] ? crc32_body+0x348/0x5f0 [ 782.123176][ T8485] gfs2_lookup_simple+0x99/0xe0 [ 782.129600][ T8485] ? gfs2_lookupi+0x630/0x630 [ 782.134313][ T8485] ? enable_ptr_key_workfn+0x30/0x30 [ 782.139619][ T8485] init_inodes+0x3cb/0x2650 [ 782.144389][ T8485] ? do_raw_spin_lock+0x120/0x2b0 [ 782.149431][ T8485] ? vsnprintf+0x2cc/0x14f0 [ 782.154744][ T8485] ? end_bio_io_page+0x100/0x100 [ 782.160887][ T8485] ? pointer+0x930/0x930 [ 782.165134][ T8485] ? gfs2_glock_dq_uninit+0x87/0x100 [ 782.170433][ T8485] ? init_sb+0x9c6/0xd30 [ 782.174687][ T8485] ? snprintf+0xbb/0xf0 [ 782.179439][ T8485] ? vsprintf+0x30/0x30 [ 782.183599][ T8485] ? gfs2_read_super+0x1140/0x1140 [ 782.188720][ T8485] ? __debugfs_create_file+0x33d/0x4c0 [ 782.194359][ T8485] gfs2_fill_super+0x1a84/0x24e0 [ 782.199294][ T8485] ? gfs2_reconfigure+0x1030/0x1030 [ 782.204481][ T8485] ? lock_downgrade+0x6d0/0x6d0 [ 782.209863][ T8485] ? gfs2_glock_nq_num+0xf9/0x240 [ 782.216342][ T8485] ? snprintf+0xbb/0xf0 [ 782.221011][ T8485] ? vsprintf+0x30/0x30 [ 782.225355][ T8485] ? wait_for_completion_io+0x260/0x260 [ 782.231003][ T8485] ? set_blocksize+0x1c1/0x400 [ 782.235777][ T8485] get_tree_bdev+0x421/0x740 [ 782.241065][ T8485] ? gfs2_reconfigure+0x1030/0x1030 [ 782.247138][ T8485] gfs2_get_tree+0x4a/0x270 [ 782.253646][ T8485] vfs_get_tree+0x89/0x2f0 [ 782.258160][ T8485] path_mount+0x12ae/0x1e70 [ 782.262659][ T8485] ? strncpy_from_user+0x2a0/0x3e0 [ 782.267786][ T8485] ? finish_automount+0xac0/0xac0 [ 782.272823][ T8485] ? getname_flags.part.0+0x1dd/0x4f0 [ 782.278195][ T8485] __x64_sys_mount+0x27f/0x300 [ 782.282957][ T8485] ? copy_mnt_ns+0xae0/0xae0 [ 782.287575][ T8485] ? syscall_enter_from_user_mode+0x1d/0x50 [ 782.294084][ T8485] do_syscall_64+0x2d/0x70 [ 782.298514][ T8485] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 782.304399][ T8485] RIP: 0033:0x45b4ca [ 782.308305][ T8485] 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 [ 782.328038][ T8485] RSP: 002b:00007ffd03cb9d48 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 782.336468][ T8485] RAX: ffffffffffffffda RBX: 00007ffd03cb9da0 RCX: 000000000045b4ca [ 782.344444][ T8485] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd03cb9d60 [ 782.352655][ T8485] RBP: 00007ffd03cb9d60 R08: 00007ffd03cb9da0 R09: 00007ffd00000015 [ 782.360634][ T8485] R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000091c [ 782.369660][ T8485] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 782.377894][ T8485] Modules linked in: [ 782.382506][ T8485] ---[ end trace 83845ed27ed8d835 ]--- [ 782.389125][ T8485] RIP: 0010:gfs2_withdraw.cold+0xff/0xc14 [ 782.395031][ T8485] 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 30 f6 f8 4d 8b 7f 70 b8 ff ff 37 00 48 c1 [ 782.415362][ T8485] RSP: 0018:ffffc9000167f370 EFLAGS: 00010202 [ 782.421469][ T8485] RAX: dffffc0000000000 RBX: ffff88801a098000 RCX: ffffffff88bd5281 [ 782.433433][ T8485] RDX: 000000000000000e RSI: ffffffff88bd5292 RDI: 0000000000000070 [ 782.441905][ T8485] RBP: ffff88801a0982c5 R08: 0000000000000038 R09: ffff8880b9f30967 [ 782.450321][ T8485] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801a0980a8 [ 782.458510][ T8485] R13: ffff88801a098348 R14: ffffffff8990b8c0 R15: 0000000000000000 [ 782.466578][ T8485] FS: 000000000199b880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 782.475836][ T8485] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 782.482520][ T8485] CR2: 0000555e5b0a9398 CR3: 00000000119f5000 CR4: 00000000001506f0 [ 782.490667][ T8485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 782.498870][ T8485] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 782.507188][ T8485] Kernel panic - not syncing: Fatal exception [ 782.513742][ T8485] Kernel Offset: disabled [ 782.518091][ T8485] Rebooting in 86400 seconds..