loop0: detected capacity change from 0 to 4096 ------------[ cut here ]------------ 1 WARNING: fs/ntfs3/attrib.c:1222 at attr_data_get_block_locked+0x174a/0x22a0 fs/ntfs3/attrib.c:1222, CPU#0: syz.0.0/5313 Modules linked in: CPU: 0 UID: 0 PID: 5313 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:attr_data_get_block_locked+0x174a/0x22a0 fs/ntfs3/attrib.c:1222 Code: 89 ee 49 89 d6 e8 66 f9 a5 fe 4d 89 f2 44 89 ac 24 bc 00 00 00 45 29 ea 73 1e e8 91 f7 a5 fe e9 47 f9 ff ff e8 87 f7 a5 fe 90 <0f> 0b 90 41 bf ea ff ff ff e9 d6 fa ff ff 48 b8 00 00 00 00 00 fc RSP: 0018:ffffc9000e07f9c0 EFLAGS: 00010287 RAX: ffffffff831fa4a9 RBX: 00000000ffffffff RCX: 0000000000100000 RDX: ffffc9000ec12000 RSI: 00000000000009b1 RDI: 00000000000009b2 RBP: ffffc9000e07fbe8 R08: 0000000000000000 R09: 1ffff1100698f841 R10: dffffc0000000000 R11: ffffed100698f842 R12: 0000000000003fff R13: dffffc0000000000 R14: 000000000000f000 R15: 0000000000003fff FS: 00007f99163c26c0(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9cea5909c0 CR3: 0000000041eb8000 CR4: 0000000000352ef0 Call Trace: attr_data_get_block+0x250/0x310 fs/ntfs3/attrib.c:982 ntfs_fallocate+0xfac/0x1220 fs/ntfs3/file.c:677 vfs_fallocate+0x669/0x7e0 fs/open.c:340 ksys_fallocate fs/open.c:364 [inline] __do_sys_fallocate fs/open.c:369 [inline] __se_sys_fallocate fs/open.c:367 [inline] __x64_sys_fallocate+0xc0/0x110 fs/open.c:367 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f991559c629 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:00007f99163c2028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f9915815fa0 RCX: 00007f991559c629 RDX: 0000000003fffffd RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f9915632b39 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000001000ef R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9915816038 R14: 00007f9915815fa0 R15: 00007ffd24017ed8