loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791 XFS (loop0): Ending clean mount XFS (loop0): Quotacheck needed: Please wait. XFS (loop0): Quotacheck: Done. loop0: detected capacity change from 32768 to 0 XFS (loop0): metadata I/O error in "xfs_btree_read_buf_block+0x2ae/0x4a0" at daddr 0x18 len 4 error 5 XFS (loop0): metadata I/O error in "xfs_btree_read_buf_block+0x2ae/0x4a0" at daddr 0x18 len 4 error 5 XFS (loop0): metadata I/O error in "xfs_btree_read_buf_block+0x2ae/0x4a0" at daddr 0x18 len 4 error 5 XFS (loop0): metadata I/O error in "xfs_btree_read_buf_block+0x2ae/0x4a0" at daddr 0x18 len 4 error 5 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000014: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000a0-0x00000000000000a7] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:xfs_trans_brelse+0xf6/0x3e0 fs/xfs/xfs_trans_buf.c:350 Code: e8 3f e9 ee ff 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d e9 5d d1 ee ff e8 18 7f 22 fe 4d 8d be a4 00 00 00 4d 89 fd 49 c1 ed 03 <43> 0f b6 44 25 00 84 c0 0f 85 34 01 00 00 41 8b 2f 31 ff 89 ee e8 RSP: 0018:ffffc9000f797588 EFLAGS: 00010207 RAX: ffffffff83a40292 RBX: ffff8880132b7200 RCX: 0000000000100000 RDX: ffffc9000ef7a000 RSI: 00000000000076ef RDI: 00000000000076f0 RBP: ffff88801ada0c01 R08: ffffffff9057adf7 R09: 1ffffffff20af5be R10: dffffc0000000000 R11: fffffbfff20af5bf R12: dffffc0000000000 R13: 0000000000000014 R14: 0000000000000000 R15: 00000000000000a4 FS: 00007fade747e6c0(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8a68b1fad0 CR3: 000000001fb09000 CR4: 0000000000352ef0 Call Trace: xchk_ag_free+0x8a/0x180 fs/xfs/scrub/common.c:681 xchk_teardown+0x33/0x810 fs/xfs/scrub/scrub.c:232 xfs_scrub_metadata+0x13b2/0x1910 fs/xfs/scrub/scrub.c:766 xfs_ioc_scrubv_metadata+0x7ac/0xb70 fs/xfs/scrub/scrub.c:981 xfs_file_ioctl+0x916/0x1590 fs/xfs/xfs_ioctl.c:1308 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fade659de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fade747dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fade6825fa0 RCX: 00007fade659de99 RDX: 0000200000000000 RSI: 00000000c0285840 RDI: 0000000000000006 RBP: 00007fade6633eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fade6826038 R14: 00007fade6825fa0 R15: 00007ffcf20a9df8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:xfs_trans_brelse+0xf6/0x3e0 fs/xfs/xfs_trans_buf.c:350 Code: e8 3f e9 ee ff 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d e9 5d d1 ee ff e8 18 7f 22 fe 4d 8d be a4 00 00 00 4d 89 fd 49 c1 ed 03 <43> 0f b6 44 25 00 84 c0 0f 85 34 01 00 00 41 8b 2f 31 ff 89 ee e8 RSP: 0018:ffffc9000f797588 EFLAGS: 00010207 RAX: ffffffff83a40292 RBX: ffff8880132b7200 RCX: 0000000000100000 RDX: ffffc9000ef7a000 RSI: 00000000000076ef RDI: 00000000000076f0 RBP: ffff88801ada0c01 R08: ffffffff9057adf7 R09: 1ffffffff20af5be R10: dffffc0000000000 R11: fffffbfff20af5bf R12: dffffc0000000000 R13: 0000000000000014 R14: 0000000000000000 R15: 00000000000000a4 FS: 00007fade747e6c0(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560b37e30168 CR3: 000000001fb09000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: e8 3f e9 ee ff call 0xffeee944 5: 48 89 df mov %rbx,%rdi 8: 5b pop %rbx 9: 41 5c pop %r12 b: 41 5d pop %r13 d: 41 5e pop %r14 f: 41 5f pop %r15 11: 5d pop %rbp 12: e9 5d d1 ee ff jmp 0xffeed174 17: e8 18 7f 22 fe call 0xfe227f34 1c: 4d 8d be a4 00 00 00 lea 0xa4(%r14),%r15 23: 4d 89 fd mov %r15,%r13 26: 49 c1 ed 03 shr $0x3,%r13 * 2a: 43 0f b6 44 25 00 movzbl 0x0(%r13,%r12,1),%eax <-- trapping instruction 30: 84 c0 test %al,%al 32: 0f 85 34 01 00 00 jne 0x16c 38: 41 8b 2f mov (%r15),%ebp 3b: 31 ff xor %edi,%edi 3d: 89 ee mov %ebp,%esi 3f: e8 .byte 0xe8