gfs2: fsid=syz:syz.0: jid=0: Looking at journal... gfs2: fsid=syz:syz.0: jid=0: Done gfs2: fsid=syz:syz.0: first mount done, others may mount kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6499 Comm: syz-executor384 Not tainted 4.19.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:set_rgrp_preferences fs/gfs2/rgrp.c:984 [inline] RIP: 0010:gfs2_ri_update+0x289/0x520 fs/gfs2/rgrp.c:1012 Code: e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 bc f9 44 fe 49 8d 7f 74 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 68 RSP: 0018:ffff888084b67638 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff832cd73b RDX: 000000000000000e RSI: ffffffff832cd8a4 RDI: 0000000000000074 RBP: ffff88808ccd1440 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: ffff88808ccd143c R15: 0000000000000000 FS: 0000000001335880(0000) GS:ffff8880ae200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d4d6b4740 CR3: 0000000096198000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_rindex_update+0x3ba/0x430 fs/gfs2/rgrp.c:1052 init_inodes+0x10cb/0x1ee0 fs/gfs2/ops_fstype.c:815 fill_super+0x190e/0x2680 fs/gfs2/ops_fstype.c:1149 gfs2_mount+0x4c0/0x598 fs/gfs2/ops_fstype.c:1312 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b73a 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 RSP: 002b:00007fff7ff01d28 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fff7ff01d80 RCX: 000000000045b73a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff7ff01d40 RBP: 00007fff7ff01d40 R08: 00007fff7ff01d80 R09: 00007fff00000015 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000091c R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 Modules linked in: ---[ end trace b661299dace97eec ]--- RIP: 0010:set_rgrp_preferences fs/gfs2/rgrp.c:984 [inline] RIP: 0010:gfs2_ri_update+0x289/0x520 fs/gfs2/rgrp.c:1012 Code: e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 bc f9 44 fe 49 8d 7f 74 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 68 RSP: 0018:ffff888084b67638 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff832cd73b RDX: 000000000000000e RSI: ffffffff832cd8a4 RDI: 0000000000000074 RBP: ffff88808ccd1440 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: ffff88808ccd143c R15: 0000000000000000 FS: 0000000001335880(0000) GS:ffff8880ae200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d4d6b4740 CR3: 0000000096198000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400