Hello, syzbot found the following issue on: HEAD commit: 177239177378 Merge branch 'for-next/core', remote-tracking.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=10bfc2df280000 kernel config: https://syzkaller.appspot.com/x/.config?x=8776b67768a3c9af dashboard link: https://syzkaller.appspot.com/bug?extid=33a67f9990381cc8951c compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=139cebf7280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11cc2187280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0c47a40dd633/disk-17723917.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0ff319b6fb50/vmlinux-17723917.xz kernel image: https://storage.googleapis.com/syzbot-assets/3ce1ea9e3b7e/Image-17723917.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/795c34a0a0d9/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+33a67f9990381cc8951c@xxxxxxxxxxxxxxxxxxxxxxxxx memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5970 'syz-executor312' loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). Unable to handle kernel paging request at virtual address dfff800000000004 KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] Mem abort info: ESR = 0x0000000096000005 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x05: level 1 translation fault Data abort info: ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [dfff800000000004] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5970 Comm: syz-executor312 Not tainted 6.4.0-rc5-syzkaller-g177239177378 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : attr_data_read_resident+0xb0/0x6c8 fs/ntfs3/attrib.c:1232 lr : attr_data_read_resident+0x8c/0x6c8 fs/ntfs3/attrib.c:1229 sp : ffff800096ba7620 x29: ffff800096ba7620 x28: 1ffff00012d74ee8 x27: ffff800096ba7740 x26: dfff800000000000 x25: ffff800096ba7730 x24: dfff800000000000 x23: ffff0000e05c7600 x22: 1ffff00012d74ee6 x21: 0000000000000020 x20: ffff0000c7576108 x19: 0000000000000000 x18: ffff800096ba7160 x17: 0000000000000001 x16: ffff80008026c4e4 x15: 000000000000be43 x14: 00000000ffffffff x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000004 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000080 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: attr_data_read_resident+0xb0/0x6c8 fs/ntfs3/attrib.c:1232 ntfs_get_block_vbo+0x2b0/0xc14 fs/ntfs3/inode.c:572 ntfs_get_block_bmap+0xa0/0xe0 fs/ntfs3/inode.c:686 generic_block_bmap+0x11c/0x1bc fs/buffer.c:2718 ntfs_bmap+0x30/0x40 fs/ntfs3/inode.c:693 bmap+0xa8/0xe8 fs/inode.c:1798 ioctl_fibmap fs/ioctl.c:77 [inline] file_ioctl fs/ioctl.c:327 [inline] do_vfs_ioctl+0x1eb0/0x26f8 fs/ioctl.c:849 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Code: 128002a0 1400011a 91008275 d343fea8 (38786908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 128002a0 mov w0, #0xffffffea // #-22 4: 1400011a b 0x46c 8: 91008275 add x21, x19, #0x20 c: d343fea8 lsr x8, x21, #3 * 10: 38786908 ldrb w8, [x8, x24] <-- trapping instruction --- 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 bug is already fixed, 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 change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
