loop0: detected capacity change from 0 to 32768 gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" gfs2: fsid=syz:syz: Now mounting FS (format 1801)... gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: found 1 quota changes gfs2: fsid=syz:syz.0: fatal: I/O error - block = 9376, function = gfs2_meta_read, file = fs/gfs2/meta_io.c, line = 304 gfs2: fsid=syz:syz.0: about to withdraw this file system gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount. gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0 gfs2: fsid=syz:syz.0: File system withdrawn CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-12426-ge271ed52b344 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 gfs2_withdraw+0x111e/0x14f0 fs/gfs2/util.c:354 gfs2_meta_read+0x946/0x980 fs/gfs2/meta_io.c:304 gfs2_meta_buffer+0x110/0x300 fs/gfs2/meta_io.c:498 gfs2_meta_inode_buffer fs/gfs2/meta_io.h:70 [inline] gfs2_dirty_inode+0x41f/0x650 fs/gfs2/super.c:518 __mark_inode_dirty+0x2ce/0xdf0 fs/fs-writeback.c:2527 mark_inode_dirty include/linux/fs.h:2594 [inline] gfs2_adjust_quota+0x647/0x800 fs/gfs2/quota.c:885 do_sync+0x847/0xc60 fs/gfs2/quota.c:961 gfs2_quota_sync+0x359/0x460 fs/gfs2/quota.c:1357 gfs2_sync_fs+0x4c/0xb0 fs/gfs2/super.c:660 sync_filesystem+0xeb/0x230 fs/sync.c:56 gfs2_reconfigure+0xbb/0xb20 fs/gfs2/ops_fstype.c:1555 reconfigure_super+0x224/0x890 fs/super.c:1075 vfs_cmd_reconfigure fs/fsopen.c:262 [inline] vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:291 __do_sys_fsconfig fs/fsopen.c:467 [inline] __se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:344 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0fc8d8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0fc9b94038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 00007f0fc8fb5fa0 RCX: 00007f0fc8d8e929 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000008 RBP: 00007f0fc8e10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0fc8fb5fa0 R15: 00007ffe49655978 gfs2: fsid=syz:syz.0: GFS2:adding buf while withdrawn! 0x23ff ------------[ cut here ]------------ kernel BUG at fs/gfs2/quota.c:331! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-12426-ge271ed52b344 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:qd_put+0x18a/0x190 fs/gfs2/quota.c:331 Code: e7 e8 ca ad 2d fe e9 ee fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 7c 83 48 89 ef e8 a1 ae 2d fe e9 76 ff ff ff e8 17 3c ca fd 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d637b60 EFLAGS: 00010283 RAX: ffffffff83f61fb9 RBX: ffff8880451c3000 RCX: 0000000000100000 RDX: ffffc9000dfba000 RSI: 000000000003add2 RDI: 000000000003add3 RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52001ac6f54 R12: ffff8880451c3070 R13: ffff888054a77000 R14: ffff8880451c3030 R15: 1ffff11008a3860e FS: 00007f0fc9b946c0(0000) GS:ffff88808d255000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056454104eb10 CR3: 000000004281b000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_quota_sync+0x3c4/0x460 fs/gfs2/quota.c:1361 gfs2_sync_fs+0x4c/0xb0 fs/gfs2/super.c:660 sync_filesystem+0xeb/0x230 fs/sync.c:56 gfs2_reconfigure+0xbb/0xb20 fs/gfs2/ops_fstype.c:1555 reconfigure_super+0x224/0x890 fs/super.c:1075 vfs_cmd_reconfigure fs/fsopen.c:262 [inline] vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:291 __do_sys_fsconfig fs/fsopen.c:467 [inline] __se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:344 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0fc8d8e929