syzbot has found a reproducer for the following issue on: HEAD commit: d8b213732169 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=12825c53280000 kernel config: https://syzkaller.appspot.com/x/.config?x=bd4213541e5ab26f dashboard link: https://syzkaller.appspot.com/bug?extid=c601e38d15ce8253186a 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=145b7343280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d9d453280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3d15de852c90/disk-d8b21373.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ca6234ed6efc/vmlinux-d8b21373.xz kernel image: https://storage.googleapis.com/syzbot-assets/0fc706ec33bb/Image-d8b21373.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/1a154c912743/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c601e38d15ce8253186a@xxxxxxxxxxxxxxxxxxxxxxxxx ntfs: (device loop0): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. ================================================================================ UBSAN: shift-out-of-bounds in fs/ntfs/inode.c:1080:43 shift exponent 267 is too large for 32-bit type 'unsigned int' CPU: 1 PID: 5969 Comm: syz-executor382 Not tainted 6.4.0-rc5-syzkaller-gd8b213732169 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:387 ntfs_read_locked_inode+0x35b4/0x38e0 fs/ntfs/inode.c:1080 ntfs_read_inode_mount+0xbb0/0x2044 fs/ntfs/inode.c:2098 ntfs_fill_super+0x13b4/0x2314 fs/ntfs/super.c:2863 mount_bdev+0x274/0x370 fs/super.c:1380 ntfs_mount+0x44/0x58 fs/ntfs/super.c:3057 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1510 do_new_mount+0x25c/0x8c4 fs/namespace.c:3039 path_mount+0x590/0xe04 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568 __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 ================================================================================ ================================================================================ UBSAN: shift-out-of-bounds in fs/ntfs/inode.c:1089:11 shift exponent 255 is too large for 32-bit type 'unsigned int' CPU: 1 PID: 5969 Comm: syz-executor382 Not tainted 6.4.0-rc5-syzkaller-gd8b213732169 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:387 ntfs_read_locked_inode+0x35d0/0x38e0 fs/ntfs/inode.c:1089 ntfs_read_inode_mount+0xbb0/0x2044 fs/ntfs/inode.c:2098 ntfs_fill_super+0x13b4/0x2314 fs/ntfs/super.c:2863 mount_bdev+0x274/0x370 fs/super.c:1380 ntfs_mount+0x44/0x58 fs/ntfs/super.c:3057 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1510 do_new_mount+0x25c/0x8c4 fs/namespace.c:3039 path_mount+0x590/0xe04 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568 __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 ================================================================================ ntfs: (device loop0): check_mft_mirror(): $MFT and $MFTMirr (record 0) do not match. Run ntfsfix or chkdsk. ntfs: (device loop0): load_system_files(): $MFTMirr does not match $MFT. Mounting read-only. Run ntfsfix and/or chkdsk. ntfs: (device loop0): map_mft_record(): Failed with error code 13. ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -13. Marking corrupt inode 0xa as bad. Run chkdsk. ntfs: (device loop0): load_and_init_upcase(): Failed to load $UpCase from the volume. Using default. ntfs: (device loop0): map_mft_record(): Failed with error code 13. ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -13. Marking corrupt inode 0x4 as bad. Run chkdsk. ntfs: (device loop0): load_and_init_attrdef(): Failed to initialize attribute definition table. ntfs: (device loop0): ntfs_fill_super(): Failed to load system files. --- 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.
