Hello, syzbot found the following issue on: HEAD commit: 3fe121b62282 Add linux-next specific files for 20240712 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=164b99dd980000 kernel config: https://syzkaller.appspot.com/x/.config?x=98dd8c4bab5cdce dashboard link: https://syzkaller.appspot.com/bug?extid=9af29acd8f27fbce94bc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15edf095980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14d611a5980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8c6fbf69718d/disk-3fe121b6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/39fc7e43dfc1/vmlinux-3fe121b6.xz kernel image: https://storage.googleapis.com/syzbot-assets/0a78e70e4b4e/bzImage-3fe121b6.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/926acae7ce07/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9af29acd8f27fbce94bc@xxxxxxxxxxxxxxxxxxxxxxxxx loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS sector size (1024) and media sector size (512). Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 5100 Comm: syz-executor136 Not tainted 6.10.0-rc7-next-20240712-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:run_lookup fs/ntfs3/run.c:39 [inline] RIP: 0010:run_is_mapped_full+0x35/0x480 fs/ntfs3/run.c:173 Code: 41 54 53 48 83 ec 30 41 89 d4 41 89 f6 49 89 fd 49 bf 00 00 00 00 00 fc ff df e8 d6 85 a5 fe 49 8d 5d 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 fc 0b 0d ff 48 8b 1b 31 ff 48 89 RSP: 0018:ffffc90003f37758 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888022738000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003f37b18 R08: ffffffff82e4c29a R09: ffffffff82ee1f39 R10: 0000000000000002 R11: ffff888022738000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000555587274380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5d9a1000 CR3: 000000001e682000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> attr_load_runs fs/ntfs3/attrib.c:69 [inline] attr_set_size+0xfdf/0x4300 fs/ntfs3/attrib.c:502 ntfs_create_inode+0x2604/0x3880 fs/ntfs3/inode.c:1716 ntfs_symlink+0xde/0x110 fs/ntfs3/namei.c:197 vfs_symlink+0x137/0x2e0 fs/namei.c:4525 do_symlinkat+0x222/0x3a0 fs/namei.c:4551 __do_sys_symlinkat fs/namei.c:4567 [inline] __se_sys_symlinkat fs/namei.c:4564 [inline] __x64_sys_symlinkat+0x95/0xb0 fs/namei.c:4564 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f861218a879 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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:00007ffe5d9a0638 EFLAGS: 00000246 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f861218a879 RDX: 0000000020000440 RSI: 0000000000000006 RDI: 0000000020000340 RBP: 00007f861221d610 R08: 00007ffe5d9a0808 R09: 00007ffe5d9a0808 R10: 00007ffe5d9a0808 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe5d9a07f8 R14: 0000000000000001 R15: 0000000000000001 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:run_lookup fs/ntfs3/run.c:39 [inline] RIP: 0010:run_is_mapped_full+0x35/0x480 fs/ntfs3/run.c:173 Code: 41 54 53 48 83 ec 30 41 89 d4 41 89 f6 49 89 fd 49 bf 00 00 00 00 00 fc ff df e8 d6 85 a5 fe 49 8d 5d 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 fc 0b 0d ff 48 8b 1b 31 ff 48 89 RSP: 0018:ffffc90003f37758 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888022738000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003f37b18 R08: ffffffff82e4c29a R09: ffffffff82ee1f39 R10: 0000000000000002 R11: ffff888022738000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000555587274380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5d9a1000 CR3: 000000001e682000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 41 54 push %r12 2: 53 push %rbx 3: 48 83 ec 30 sub $0x30,%rsp 7: 41 89 d4 mov %edx,%r12d a: 41 89 f6 mov %esi,%r14d d: 49 89 fd mov %rdi,%r13 10: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 17: fc ff df 1a: e8 d6 85 a5 fe call 0xfea585f5 1f: 49 8d 5d 08 lea 0x8(%r13),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 fc 0b 0d ff call 0xff0d0c35 39: 48 8b 1b mov (%rbx),%rbx 3c: 31 ff xor %edi,%edi 3e: 48 rex.W 3f: 89 .byte 0x89 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
