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 1 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: can't create logd thread: -4 list_del corruption, ffff88803cf48c10->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5107 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59 Code: e8 4f 78 fc 06 90 0f 0b 48 c7 c7 20 93 60 8c 4c 89 fe e8 3d 78 fc 06 90 0f 0b 48 c7 c7 80 93 60 8c 4c 89 fe e8 2b 78 fc 06 90 <0f> 0b 48 c7 c7 e0 93 60 8c 4c 89 fe 48 89 d9 e8 16 78 fc 06 90 0f RSP: 0000:ffffc90002c9f928 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: b0a0930319b67400 RDX: ffffc9000b489000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff88803cf48cf8 R08: ffffffff817401bc R09: 1ffff92000593ec4 R10: dffffc0000000000 R11: fffff52000593ec5 R12: dffffc0000000000 R13: ffff88803cf48c00 R14: ffff88801fcf2010 R15: ffff88803cf48c10 FS: 00007fd83c5ff6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8dd86cac28 CR3: 000000001ffe2000 CR4: 0000000000350ef0 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:5831 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+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3472 do_mount fs/namespace.c:3812 [inline] __do_sys_mount fs/namespace.c:4020 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997 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: 0033:0x7fd83c77f69a 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:00007fd83c5fee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fd83c5feef0 RCX: 00007fd83c77f69a RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007fd83c5feeb0 RBP: 0000000020037f40 R08: 00007fd83c5feef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020037f80 R13: 00007fd83c5feeb0 R14: 0000000000037f14 R15: 0000000020037fc0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59 Code: e8 4f 78 fc 06 90 0f 0b 48 c7 c7 20 93 60 8c 4c 89 fe e8 3d 78 fc 06 90 0f 0b 48 c7 c7 80 93 60 8c 4c 89 fe e8 2b 78 fc 06 90 <0f> 0b 48 c7 c7 e0 93 60 8c 4c 89 fe 48 89 d9 e8 16 78 fc 06 90 0f RSP: 0000:ffffc90002c9f928 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: b0a0930319b67400 RDX: ffffc9000b489000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff88803cf48cf8 R08: ffffffff817401bc R09: 1ffff92000593ec4 R10: dffffc0000000000 R11: fffff52000593ec5 R12: dffffc0000000000 R13: ffff88803cf48c00 R14: ffff88801fcf2010 R15: ffff88803cf48c10 FS: 00007fd83c5ff6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ef9eb1c6b8 CR3: 000000001ffe2000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400