gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: can't create quotad thread: -4 list_del corruption, ffff888079445010->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 10026 Comm: syz.2.1981 Not tainted 6.11.0-rc4-next-20240821-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59 Code: e8 4f 27 ff 06 90 0f 0b 48 c7 c7 80 a1 60 8c 4c 89 fe e8 3d 27 ff 06 90 0f 0b 48 c7 c7 e0 a1 60 8c 4c 89 fe e8 2b 27 ff 06 90 <0f> 0b 48 c7 c7 40 a2 60 8c 4c 89 fe 48 89 d9 e8 16 27 ff 06 90 0f RSP: 0018:ffffc90005007928 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: 63eb97c998196400 RDX: ffffc90009f79000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 1ffff1100b239b00 R08: ffffffff81744b8c R09: 1ffff92000a00ec4 R10: dffffc0000000000 R11: fffff52000a00ec5 R12: dffffc0000000000 R13: ffff888079445000 R14: ffff88807d71bc10 R15: ffff888079445010 FS: 00007f65355066c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc92e001000 CR3: 000000005eb60000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:157 [inline] destroy_workqueue+0x7b3/0xc40 kernel/workqueue.c:5868 gfs2_fill_super+0x128a/0x2500 fs/gfs2/ops_fstype.c:1310 get_tree_bdev+0x3f7/0x570 fs/super.c:1635 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1329 vfs_get_tree+0x90/0x2a0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 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: 0033:0x7f653477b61a 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:00007f6535505e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6535505ef0 RCX: 00007f653477b61a RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007f6535505eb0 RBP: 0000000020021140 R08: 00007f6535505ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020021180 R13: 00007f6535505eb0 R14: 000000000002113b R15: 00000000200211c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59 Code: e8 4f 27 ff 06 90 0f 0b 48 c7 c7 80 a1 60 8c 4c 89 fe e8 3d 27 ff 06 90 0f 0b 48 c7 c7 e0 a1 60 8c 4c 89 fe e8 2b 27 ff 06 90 <0f> 0b 48 c7 c7 40 a2 60 8c 4c 89 fe 48 89 d9 e8 16 27 ff 06 90 0f RSP: 0018:ffffc90005007928 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: 63eb97c998196400 RDX: ffffc90009f79000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 1ffff1100b239b00 R08: ffffffff81744b8c R09: 1ffff92000a00ec4 R10: dffffc0000000000 R11: fffff52000a00ec5 R12: dffffc0000000000 R13: ffff888079445000 R14: ffff88807d71bc10 R15: ffff888079445010 FS: 00007f65355066c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc92f8d3000 CR3: 000000005eb60000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400