XFS (loop2): Unmounting Filesystem a2f82aab-77f8-4286-afd4-a8f747a74bab list_add corruption. prev->next should be next (ffffe8ffad1522f8), but was ffffe8ffad1522f9. (prev=ffffe8ffad1522f8). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:32! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 5773 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32 Code: e8 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b0 8f 8b e8 e8 fb e8 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b1 8f 8b 48 89 de e8 d3 fb e8 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b1 8f 8b e8 bb fb e8 RSP: 0018:ffffc90007187960 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffffe8ffad1522f8 RCX: ffffffff816f3589 RDX: 0000000000000000 RSI: ffffffff816fc106 RDI: 0000000000000005 RBP: ffff88805f2f8308 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000002 R12: ffffe8ffad1522f8 R13: ffff88805f2f82a0 R14: ffff88805f2f8308 R15: ffffe8ffad1522e0 FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000565ae400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7fa9ea0 CR3: 0000000050c3c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add_valid include/linux/list.h:88 [inline] __list_add include/linux/list.h:150 [inline] list_add_tail include/linux/list.h:183 [inline] xlog_cil_insert_items fs/xfs/xfs_log_cil.c:675 [inline] xlog_cil_commit+0x125b/0x32d0 fs/xfs/xfs_log_cil.c:1593 __xfs_trans_commit+0x346/0xe90 fs/xfs/xfs_trans.c:1020 xfs_sync_sb+0x112/0x160 fs/xfs/libxfs/xfs_sb.c:1080 xfs_log_cover fs/xfs/xfs_log.c:1266 [inline] xfs_log_quiesce+0x1fa/0x2c0 fs/xfs/xfs_log.c:1075 xfs_log_clean fs/xfs/xfs_log.c:1082 [inline] xfs_log_unmount+0x22/0x270 fs/xfs/xfs_log.c:1097 xfs_unmountfs+0x10d/0x250 fs/xfs/xfs_mount.c:1120 xfs_fs_put_super+0x61/0x110 fs/xfs/xfs_super.c:1145 generic_shutdown_super+0x159/0x3d0 fs/super.c:642 kill_block_super+0x3b/0x90 fs/super.c:1676 xfs_kill_sb+0x15/0x50 fs/xfs/xfs_super.c:2045 deactivate_locked_super+0xbe/0x1a0 fs/super.c:473 deactivate_super+0xde/0x100 fs/super.c:506 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14e/0x250 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218 __do_fast_syscall_32+0x82/0x120 arch/x86/entry/common.c:389 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7315579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ff8abb08 EFLAGS: 00000292 ORIG_RAX: 0000000000000034 RAX: 0000000000000000 RBX: 00000000ff8abbb0 RCX: 0000000000000009 RDX: 00000000f746bff4 RSI: 00000000f73bc361 RDI: 00000000ff8acc54 RBP: 00000000ff8abbb0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32 Code: e8 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b0 8f 8b e8 e8 fb e8 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b1 8f 8b 48 89 de e8 d3 fb e8 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b1 8f 8b e8 bb fb e8 RSP: 0018:ffffc90007187960 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffffe8ffad1522f8 RCX: ffffffff816f3589 RDX: 0000000000000000 RSI: ffffffff816fc106 RDI: 0000000000000005 RBP: ffff88805f2f8308 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000002 R12: ffffe8ffad1522f8 R13: ffff88805f2f82a0 R14: ffff88805f2f8308 R15: ffffe8ffad1522e0 FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000565ae400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7fa9ea0 CR3: 0000000050c3c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi