RSP: 002b:00007ffc049a7b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4771d76bb9 RDX: 0000000000181341 RSI: 0000000020000000 RDI: 00000000ffffff9c RBP: 00007ffc049a7ba0 R08: 0000000000000002 R09: 0000001000003731 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 00007ffc049a7bf8 R14: 00007ffc049a7bf0 R15: 00007ffc049a7c00 general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 1 PID: 3628 Comm: syz-executor739 Not tainted 6.1.21-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:is_rec_inuse fs/ntfs3/ntfs.h:313 [inline] RIP: 0010:ni_write_inode+0x19a/0x1240 fs/ntfs3/frecord.c:3246 Code: c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 80 3c 38 00 74 08 48 89 df e8 74 f2 17 ff 48 8b 1b 48 83 c3 16 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 2f 0e 00 00 48 8b 44 24 08 48 05 b0 fd RSP: 0018:ffffc90003c7f4e0 EFLAGS: 00010203 RAX: 0000000000000002 RBX: 0000000000000016 RCX: 1ffff9200078fe18 RDX: ffff88807648d7c0 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90003c7f608 R08: ffffffff82c7b480 R09: fffffbfff204de4b R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100fdd040a R13: ffff88807ee82050 R14: 0000000000000000 R15: dffffc0000000000 FS: 00005555564f3400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc374d5cc4 CR3: 0000000077955000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ntfs_evict_inode+0x63/0xb0 fs/ntfs3/inode.c:1757 evict+0x2a4/0x620 fs/inode.c:664 ntfs_new_inode+0x83/0xf0 fs/ntfs3/fsntfs.c:1660 ntfs_create_inode+0x4bd/0x38e0 fs/ntfs3/inode.c:1291 ntfs_create+0x3e/0x60 fs/ntfs3/namei.c:100 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x12f1/0x2e60 fs/namei.c:3711 do_filp_open+0x230/0x480 fs/namei.c:3741 do_sys_openat2+0x13b/0x500 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4771d76bb9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc049a7b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4771d76bb9 RDX: 0000000000181341 RSI: 0000000020000000 RDI: 00000000ffffff9c RBP: 00007ffc049a7ba0 R08: 0000000000000002 R09: 0000001000003731 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 00007ffc049a7bf8 R14: 00007ffc049a7bf0 R15: 00007ffc049a7c00 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:is_rec_inuse fs/ntfs3/ntfs.h:313 [inline] RIP: 0010:ni_write_inode+0x19a/0x1240 fs/ntfs3/frecord.c:3246 Code: c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 80 3c 38 00 74 08 48 89 df e8 74 f2 17 ff 48 8b 1b 48 83 c3 16 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 2f 0e 00 00 48 8b 44 24 08 48 05 b0 fd RSP: 0018:ffffc90003c7f4e0 EFLAGS: 00010203 RAX: 0000000000000002 RBX: 0000000000000016 RCX: 1ffff9200078fe18 RDX: ffff88807648d7c0 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90003c7f608 R08: ffffffff82c7b480 R09: fffffbfff204de4b R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100fdd040a R13: ffff88807ee82050 R14: 0000000000000000 R15: dffffc0000000000 FS: 00005555564f3400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc374d5cc4 CR3: 0000000077955000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c1 e8 03 shr $0x3,%eax 3: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 a: fc ff df d: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 12: 74 08 je 0x1c 14: 48 89 df mov %rbx,%rdi 17: e8 74 f2 17 ff callq 0xff17f290 1c: 48 8b 1b mov (%rbx),%rbx 1f: 48 83 c3 16 add $0x16,%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 2f 0e 00 00 jne 0xe66 37: 48 8b 44 24 08 mov 0x8(%rsp),%rax 3c: 48 rex.W 3d: 05 .byte 0x5 3e: b0 fd mov $0xfd,%al