gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: Corruption found in quota_change0file: duplicate identifier in slot 176779 gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed - function = gfs2_qd_dispose, file = fs/gfs2/quota.c, line = 129 ------------[ cut here ]------------ kernel BUG at fs/gfs2/util.c:414! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 6619 Comm: syz.0.15 Not tainted 6.13.0-rc1-next-20241204-syzkaller-01849-gbcf2acd8f64b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:gfs2_assert_warn_i+0x2df/0x2f0 fs/gfs2/util.c:414 Code: fe 48 c7 c7 00 f1 4e 8c 48 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 a7 2c 14 fd e8 e2 8c ac fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 RSP: 0018:ffffc90003427608 EFLAGS: 00010293 RAX: ffffffff83f2d16e RBX: 0000000000000004 RCX: ffff88802b148000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 RBP: ffff888012f10000 R08: ffffffff83f2d027 R09: 1ffff92000684e5c R10: dffffc0000000000 R11: fffff52000684e5d R12: ffff888012f102bc R13: 00000000000003e8 R14: 1ffff110025e2057 R15: 0000000000002146 FS: 00007f56732d96c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f10fb2500d0 CR3: 000000007146c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_qd_dispose+0x4af/0x5b0 fs/gfs2/quota.c:129 gfs2_quota_init+0xd7b/0x1440 fs/gfs2/quota.c:1470 gfs2_make_fs_rw+0x43f/0x5e0 fs/gfs2/super.c:159 gfs2_fill_super+0x22a1/0x24d0 fs/gfs2/ops_fstype.c:1274 get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1330 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f567257ffba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f56732d8e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f56732d8ef0 RCX: 00007f567257ffba RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007f56732d8eb0 RBP: 0000000020021140 R08: 00007f56732d8ef0 R09: 000000000300c888 R10: 000000000300c888 R11: 0000000000000246 R12: 0000000020021180 R13: 00007f56732d8eb0 R14: 0000000000021170 R15: 0000000020000180 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_assert_warn_i+0x2df/0x2f0 fs/gfs2/util.c:414 Code: fe 48 c7 c7 00 f1 4e 8c 48 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 a7 2c 14 fd e8 e2 8c ac fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 RSP: 0018:ffffc90003427608 EFLAGS: 00010293 RAX: ffffffff83f2d16e RBX: 0000000000000004 RCX: ffff88802b148000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 RBP: ffff888012f10000 R08: ffffffff83f2d027 R09: 1ffff92000684e5c R10: dffffc0000000000 R11: fffff52000684e5d R12: ffff888012f102bc R13: 00000000000003e8 R14: 1ffff110025e2057 R15: 0000000000002146 FS: 00007f56732d96c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f10fb2500d0 CR3: 000000007146c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400