XFS (loop2): Ending clean mount XFS (loop2): Quotacheck needed: Please wait. list_del corruption, ffff88802845c7a0->next is NULL ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:49! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 6607 Comm: syz-executor.2 Not tainted 6.4.0-rc4-syzkaller-00265-g4ecd704a4c51 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__list_del_entry_valid+0xe1/0x1b0 lib/list_debug.c:49 Code: 03 80 3c 01 00 0f 85 a4 00 00 00 4c 8b 42 08 49 39 f0 75 56 b8 01 00 00 00 48 83 c4 18 c3 48 c7 c7 a0 15 a7 8a e8 af dd 50 fd <0f> 0b 48 c7 c7 00 16 a7 8a e8 a1 dd 50 fd 0f 0b 48 c7 c7 60 16 a7 RSP: 0000:ffffc900062af718 EFLAGS: 00010282 RAX: 0000000000000033 RBX: ffff88802845c7a0 RCX: ffffc90007d11000 RDX: 0000000000000000 RSI: ffffffff8168bc6c RDI: 0000000000000005 RBP: ffff88802845c680 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 6c65645f7473696c R12: ffffc900062af760 R13: 1ffff92000c55ee8 R14: ffff88801bebd500 R15: ffffffff831dc5d1 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f5ab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f02f02c877f CR3: 000000005fe86000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:134 [inline] list_move include/linux/list.h:217 [inline] xfs_buf_delwri_pushbuf+0x101/0x4a0 fs/xfs/xfs_buf.c:2295 xfs_qm_flush_one+0x351/0x3b0 fs/xfs/xfs_qm.c:1253 xfs_qm_dquot_walk.isra.0+0x1be/0x3f0 fs/xfs/xfs_qm.c:87 xfs_qm_quotacheck+0x3c0/0x940 fs/xfs/xfs_qm.c:1338 xfs_qm_mount_quotas+0x125/0x690 fs/xfs/xfs_qm.c:1457 xfs_mountfs+0x1e07/0x1f60 fs/xfs/xfs_mount.c:959 xfs_fs_fill_super+0x145b/0x1f80 fs/xfs/xfs_super.c:1693 get_tree_bdev+0x44a/0x770 fs/super.c:1303 vfs_get_tree+0x8d/0x350 fs/super.c:1510 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x134b/0x1e40 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __ia32_sys_mount+0x282/0x300 fs/namespace.c:3568 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f5f579 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:00000000f7f5a410 EFLAGS: 00000296 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00000000f7f5a480 RCX: 000000002000bb40 RDX: 000000002000bb00 RSI: 0000000000000000 RDI: 00000000f7f5a4c0 RBP: 00000000f7f5a4c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid+0xe1/0x1b0 lib/list_debug.c:49 Code: 03 80 3c 01 00 0f 85 a4 00 00 00 4c 8b 42 08 49 39 f0 75 56 b8 01 00 00 00 48 83 c4 18 c3 48 c7 c7 a0 15 a7 8a e8 af dd 50 fd <0f> 0b 48 c7 c7 00 16 a7 8a e8 a1 dd 50 fd 0f 0b 48 c7 c7 60 16 a7 RSP: 0000:ffffc900062af718 EFLAGS: 00010282 RAX: 0000000000000033 RBX: ffff88802845c7a0 RCX: ffffc90007d11000 RDX: 0000000000000000 RSI: ffffffff8168bc6c RDI: 0000000000000005 RBP: ffff88802845c680 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 6c65645f7473696c R12: ffffc900062af760 R13: 1ffff92000c55ee8 R14: ffff88801bebd500 R15: ffffffff831dc5d1 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f5ab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f02f02c877f CR3: 000000005fe86000 CR4: 0000000000350ee0 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 retq 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