Hello, syzbot found the following issue on: HEAD commit: bb7a2467e6be Add linux-next specific files for 20240426 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=16152fd8980000 kernel config: https://syzkaller.appspot.com/x/.config?x=5c6a0288262dd108 dashboard link: https://syzkaller.appspot.com/bug?extid=5b6ed16da1077f45bc8e 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=1425307f180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=129b956b180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/5175af7dda64/disk-bb7a2467.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/70db0462e868/vmlinux-bb7a2467.xz kernel image: https://storage.googleapis.com/syzbot-assets/3217fb825698/bzImage-bb7a2467.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/5f3094e29bc3/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5b6ed16da1077f45bc8e@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 8000000078309067 P4D 8000000078309067 PUD 7b739067 PMD 0 Oops: Oops: 0010 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 10600 Comm: syz-executor757 Not tainted 6.9.0-rc5-next-20240426-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000df7f698 EFLAGS: 00010282 RAX: 1ffffffff17f906b RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffea0001dd3440 RDI: ffff8880785f9a98 RBP: ffffc9000df7f800 R08: ffffffff81cfce8a R09: 1ffffd40003ba688 R10: dffffc0000000000 R11: 0000000000000000 R12: ffff888022288170 R13: ffff888022288188 R14: ffffea0001dd3440 R15: 1ffff92001befee8 FS: 00007fb8369ff6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000007c042000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> attr_make_nonresident+0xa49/0xe80 fs/ntfs3/attrib.c:301 attr_set_size_res fs/ntfs3/attrib.c:371 [inline] attr_set_size+0x711/0x4290 fs/ntfs3/attrib.c:432 ntfs_set_size+0x161/0x200 fs/ntfs3/inode.c:851 ntfs_extend+0x16d/0x4a0 fs/ntfs3/file.c:335 ntfs_file_write_iter+0x3ea/0x770 fs/ntfs3/file.c:1124 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb837280a29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 1a 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb8369ff168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fb8373276f8 RCX: 00007fb837280a29 RDX: 000000000000fea7 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00007fb8373276f0 R08: 00007ffc182e95a7 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb8373276fc R13: 000000000000006e R14: 00007ffc182e94c0 R15: 00007ffc182e95a8 </TASK> Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000df7f698 EFLAGS: 00010282 RAX: 1ffffffff17f906b RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffea0001dd3440 RDI: ffff8880785f9a98 RBP: ffffc9000df7f800 R08: ffffffff81cfce8a R09: 1ffffd40003ba688 R10: dffffc0000000000 R11: 0000000000000000 R12: ffff888022288170 R13: ffff888022288188 R14: ffffea0001dd3440 R15: 1ffff92001befee8 FS: 00007fb8369ff6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000007c042000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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
