loop0: detected capacity change from 0 to 4096 ntfs3(loop0): Different NTFS sector size (1024) and media sector size (512). overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. BUG: unable to handle page fault for address: ffffed1103e8c9c1 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 5ffcd067 P4D 5ffcd067 PUD 0 Oops: Oops: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5333 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-10167-g93d52288679e #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:io_schedule_finish kernel/sched/core.c:7717 [inline] RIP: 0010:io_schedule+0x8d/0x110 kernel/sched/core.c:7743 Code: 42 80 3c 38 00 74 08 48 89 df e8 5e a5 fd f5 48 8b 3b 48 85 ff 74 0a be 01 00 00 00 e8 0c 42 b1 f8 41 83 e5 08 e8 33 f3 ff ff <43> 0f b6 04 3c 84 c0 75 59 41 8b 06 83 e0 f7 41 0f b7 cd 09 c1 66 RSP: 0018:ffffc9000d3de378 EFLAGS: 00010246 RAX: 0000000000400140 RBX: ffff88801f465b08 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8ca15b20 RDI: 0000000000000001 RBP: 0000000000000008 R08: ffffffff905f2777 R09: 1ffffffff20be4ee R10: dffffc0000000000 R11: fffffbfff20be4ef R12: 1ffff11003e8c9c2 R13: 0000000000000000 R14: ffff88801f464e10 R15: dffffc00ffffffff FS: 00007fe6ed3746c0(0000) GS:ffff88808c5b7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1103e8c9c1 CR3: 00000000442c8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bit_wait_io+0x12/0xd0 kernel/sched/wait_bit.c:247 __wait_on_bit+0xb0/0x300 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x1e0/0x280 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:105 [inline] __wait_on_buffer fs/buffer.c:123 [inline] wait_on_buffer include/linux/buffer_head.h:413 [inline] __sync_dirty_buffer+0x2f7/0x390 fs/buffer.c:2846 ntfs_write_bh+0x5fe/0x7c0 fs/ntfs3/fsntfs.c:1485 mi_write+0x9b/0x1e0 fs/ntfs3/record.c:402 indx_update_dup+0x691/0x860 fs/ntfs3/index.c:2697 ni_update_parent+0xa1a/0xdd0 fs/ntfs3/frecord.c:3230 ni_write_inode+0xe7a/0x1110 fs/ntfs3/frecord.c:3321 write_inode fs/fs-writeback.c:1525 [inline] __writeback_single_inode+0x708/0x10d0 fs/fs-writeback.c:1745 writeback_single_inode+0x1f3/0x660 fs/fs-writeback.c:1801 sync_inode_metadata+0xc6/0x120 fs/fs-writeback.c:2883 __generic_file_fsync+0x134/0x1a0 fs/libfs.c:1536 generic_file_fsync+0x70/0xf0 fs/libfs.c:1566 ovl_sync_file+0x3a/0x50 fs/overlayfs/copy_up.c:254 ovl_copy_up_metadata+0xac5/0xef0 fs/overlayfs/copy_up.c:724 ovl_copy_up_workdir fs/overlayfs/copy_up.c:816 [inline] ovl_do_copy_up fs/overlayfs/copy_up.c:1001 [inline] ovl_copy_up_one fs/overlayfs/copy_up.c:1202 [inline] ovl_copy_up_flags+0x2460/0x47f0 fs/overlayfs/copy_up.c:1257 ovl_open+0x14f/0x320 fs/overlayfs/file.c:211 do_dentry_open+0xdec/0x1960 fs/open.c:956 vfs_open+0x3b/0x370 fs/open.c:1086 do_open fs/namei.c:3845 [inline] path_openat+0x2caf/0x35d0 fs/namei.c:4004 do_filp_open+0x284/0x4e0 fs/namei.c:4031 do_sys_openat2+0x12b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_open fs/open.c:1452 [inline] __se_sys_open fs/open.c:1448 [inline] __x64_sys_open+0x226/0x280 fs/open.c:1448 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe6ec58d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe6ed374038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fe6ec7a5fa0 RCX: 00007fe6ec58d169 RDX: 0000000000000000 RSI: 0000000000109042 RDI: 0000200000000000 RBP: 00007fe6ec60e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe6ec7a5fa0 R15: 00007ffc18e274a8 Modules linked in: CR2: ffffed1103e8c9c1 ---[ end trace 0000000000000000 ]--- RIP: 0010:io_schedule_finish kernel/sched/core.c:7717 [inline] RIP: 0010:io_schedule+0x8d/0x110 kernel/sched/core.c:7743 Code: 42 80 3c 38 00 74 08 48 89 df e8 5e a5 fd f5 48 8b 3b 48 85 ff 74 0a be 01 00 00 00 e8 0c 42 b1 f8 41 83 e5 08 e8 33 f3 ff ff <43> 0f b6 04 3c 84 c0 75 59 41 8b 06 83 e0 f7 41 0f b7 cd 09 c1 66 RSP: 0018:ffffc9000d3de378 EFLAGS: 00010246 RAX: 0000000000400140 RBX: ffff88801f465b08 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8ca15b20 RDI: 0000000000000001 RBP: 0000000000000008 R08: ffffffff905f2777 R09: 1ffffffff20be4ee R10: dffffc0000000000 R11: fffffbfff20be4ef R12: 1ffff11003e8c9c2 R13: 0000000000000000 R14: ffff88801f464e10 R15: dffffc00ffffffff FS: 00007fe6ed3746c0(0000) GS:ffff88808c5b7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1103e8c9c1 CR3: 00000000442c8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 5: 74 08 je 0xf 7: 48 89 df mov %rbx,%rdi a: e8 5e a5 fd f5 call 0xf5fda56d f: 48 8b 3b mov (%rbx),%rdi 12: 48 85 ff test %rdi,%rdi 15: 74 0a je 0x21 17: be 01 00 00 00 mov $0x1,%esi 1c: e8 0c 42 b1 f8 call 0xf8b1422d 21: 41 83 e5 08 and $0x8,%r13d 25: e8 33 f3 ff ff call 0xfffff35d * 2a: 43 0f b6 04 3c movzbl (%r12,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 75 59 jne 0x8c 33: 41 8b 06 mov (%r14),%eax 36: 83 e0 f7 and $0xfffffff7,%eax 39: 41 0f b7 cd movzwl %r13w,%ecx 3d: 09 c1 or %eax,%ecx 3f: 66 data16