loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS' sector size (2048) and media sector size (512) ================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_iget5+0x120/0x2c8c fs/ntfs3/inode.c:526 Read of size 8 at addr ffff0000e16bff60 by task syz.0.6825/19834 CPU: 0 PID: 19834 Comm: syz.0.6825 Not tainted 6.1.133-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:427 kasan_report+0xd4/0x130 mm/kasan/report.c:531 __asan_report_load8_noabort+0x2c/0x38 mm/kasan/report_generic.c:351 ntfs_iget5+0x120/0x2c8c fs/ntfs3/inode.c:526 ntfs_fill_super+0x1b98/0x36cc fs/ntfs3/super.c:1033 get_tree_bdev+0x360/0x54c fs/super.c:1366 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1383 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x278/0x8fc fs/namespace.c:3056 path_mount+0x590/0xe5c fs/namespace.c:3386 do_mount fs/namespace.c:3399 [inline] __do_sys_mount fs/namespace.c:3607 [inline] __se_sys_mount fs/namespace.c:3584 [inline] __arm64_sys_mount+0x498/0x588 fs/namespace.c:3584 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Allocated by task 19810: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x74/0x458 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x1ac/0x2f8 mm/slub.c:3429 xas_alloc lib/xarray.c:377 [inline] xas_create+0xef4/0x13d4 lib/xarray.c:679 xas_store+0x90/0x1598 lib/xarray.c:789 shmem_add_to_page_cache+0x884/0x117c mm/shmem.c:729 shmem_get_folio_gfp+0x11f0/0x21f0 mm/shmem.c:1971 shmem_get_folio mm/shmem.c:2072 [inline] shmem_write_begin+0x13c/0x4e8 mm/shmem.c:2556 generic_perform_write+0x278/0x55c mm/filemap.c:3845 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3973 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4005 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x91c fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2845 xa_node_free lib/xarray.c:260 [inline] xas_delete_node lib/xarray.c:497 [inline] update_node lib/xarray.c:761 [inline] xas_store+0xc58/0x1598 lib/xarray.c:846 page_cache_delete mm/filemap.c:140 [inline] __filemap_remove_folio+0x488/0x604 mm/filemap.c:223 filemap_remove_folio+0xd4/0x1cc mm/filemap.c:255 truncate_inode_folio+0x6c/0x84 mm/truncate.c:195 shmem_undo_range+0x428/0x16b8 mm/shmem.c:942 shmem_truncate_range mm/shmem.c:1062 [inline] shmem_evict_inode+0x200/0x8a8 mm/shmem.c:1171 evict+0x418/0x894 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x7c0/0x8a4 fs/inode.c:1860 dentry_unlink_inode+0x37c/0x4bc fs/dcache.c:405 __dentry_kill+0x324/0x5e4 fs/dcache.c:611 dentry_kill+0xc8/0x250 fs/dcache.c:-1 dput+0x218/0x454 fs/dcache.c:918 __fput+0x488/0x7c8 fs/file_table.c:328 ____fput+0x20/0x30 fs/file_table.c:348 task_work_run+0x240/0x2f0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2080/0x2cb8 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Second to last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2845 xa_node_free lib/xarray.c:260 [inline] xas_delete_node lib/xarray.c:497 [inline] update_node lib/xarray.c:761 [inline] xas_store+0xc58/0x1598 lib/xarray.c:846 memcg_destroy_list_lru mm/list_lru.c:385 [inline] list_lru_destroy+0x2c0/0x6e0 mm/list_lru.c:597 deactivate_locked_super+0xbc/0x124 fs/super.c:340 deactivate_super+0xf0/0x110 fs/super.c:363 cleanup_mnt+0x394/0x41c fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x240/0x2f0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2080/0x2cb8 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 The buggy address belongs to the object at ffff0000e16bfc80 which belongs to the cache radix_tree_node of size 576 The buggy address is located 160 bytes to the right of 576-byte region [ffff0000e16bfc80, ffff0000e16bfec0) The buggy address belongs to the physical page: page:000000005a9f6bf4 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1216bc head:000000005a9f6bf4 order:2 compound_mapcount:0 compound_pincount:0 memcg:ffff0000ce4e0001 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 fffffc0003d43100 dead000000000002 ffff0000c000d500 raw: 0000000000000000 0000000000170017 00000001ffffffff ffff0000ce4e0001 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000e16bfe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000e16bfe80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc >ffff0000e16bff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000e16bff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000e16c0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== Unable to handle kernel paging request at virtual address dfff800000000002 KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff800000000002] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 19834 Comm: syz.0.6825 Tainted: G B 6.1.133-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ntfs_iget5+0x12c/0x2c8c fs/ntfs3/inode.c:526 lr : ntfs_iget5+0x120/0x2c8c fs/ntfs3/inode.c:526 sp : ffff800024767560 x29: ffff8000247677a0 x28: 0000000000000001 x27: ffff0000d3622000 x26: 000000000000000b x25: dfff800000000000 x24: ffff8000127ab8c0 x23: ffff7000048ecee0 x22: 0000000000000010 x21: 0000000000000002 x20: ffff0000e16c0190 x19: ffff800024767700 x18: 1fffe00036798576 x17: ffff800015afd000 x16: ffff800012328cac x15: ffff0001b3cc2bbc x14: ffff0001b3cc2bb8 x13: 1fffe00036798576 x12: 0000000000080000 x11: 000000000007ffff x10: ffff800021be9000 x9 : 0000000000000000 x8 : 0000000000000002 x7 : 1fffe00036798577 x6 : ffff800008279464 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000081a92b0 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000001 Call trace: ntfs_iget5+0x12c/0x2c8c fs/ntfs3/inode.c:526 ntfs_fill_super+0x1b98/0x36cc fs/ntfs3/super.c:1033 get_tree_bdev+0x360/0x54c fs/super.c:1366 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1383 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x278/0x8fc fs/namespace.c:3056 path_mount+0x590/0xe5c fs/namespace.c:3386 do_mount fs/namespace.c:3399 [inline] __do_sys_mount fs/namespace.c:3607 [inline] __se_sys_mount fs/namespace.c:3584 [inline] __arm64_sys_mount+0x498/0x588 fs/namespace.c:3584 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 97c8b918 f94002c8 91004116 d343fec8 (38f96908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97c8b918 bl 0xffffffffff22e460 4: f94002c8 ldr x8, [x22] 8: 91004116 add x22, x8, #0x10 c: d343fec8 lsr x8, x22, #3 * 10: 38f96908 ldrsb w8, [x8, x25] <-- trapping instruction