------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in ./include/linux/pagevec.h:74:2 index 255 is out of range for type 'struct folio *[15]' CPU: 0 PID: 20567 Comm: syz-executor492 Tainted: G B 6.8.0-rc5-syzkaller-g9abbc24128bc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __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_out_of_bounds+0xf8/0x148 lib/ubsan.c:347 folio_batch_add include/linux/pagevec.h:74 [inline] find_lock_entries+0x8c8/0xd1c mm/filemap.c:2075 truncate_inode_pages_range+0x1b8/0xf34 mm/truncate.c:354 truncate_inode_pages mm/truncate.c:439 [inline] truncate_inode_pages_final+0x90/0xc0 mm/truncate.c:474 ntfs_evict_inode+0x20/0x48 fs/ntfs3/inode.c:1814 evict+0x260/0x68c fs/inode.c:665 iput_final fs/inode.c:1739 [inline] iput+0x734/0x818 fs/inode.c:1765 ntfs_fill_super+0x3254/0x3a98 fs/ntfs3/super.c:1474 get_tree_bdev+0x320/0x470 fs/super.c:1619 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1695 vfs_get_tree+0x90/0x288 fs/super.c:1784 do_new_mount+0x278/0x900 fs/namespace.c:3352 path_mount+0x590/0xe04 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3875 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 ---[ end trace ]---