loop3: detected capacity change from 0 to 4096 ntfs3: loop3: Different NTFS' sector size (1024) and media sector size (512) ================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_iget5+0x120/0x2b10 fs/ntfs3/inode.c:526 Read of size 8 at addr ffff0000e3ab7f60 by task syz.3.3042/10951 CPU: 1 PID: 10951 Comm: syz.3.3042 Not tainted 6.1.140-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+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 print_address_description+0x88/0x220 mm/kasan/report.c:316 print_report+0x50/0x68 mm/kasan/report.c:427 kasan_report+0xa8/0x100 mm/kasan/report.c:531 __asan_report_load8_noabort+0x2c/0x38 mm/kasan/report_generic.c:351 ntfs_iget5+0x120/0x2b10 fs/ntfs3/inode.c:526 ntfs_fill_super+0x1a64/0x32ac fs/ntfs3/super.c:1033 get_tree_bdev+0x358/0x544 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+0x228/0x810 fs/namespace.c:3058 path_mount+0x5b4/0xe78 fs/namespace.c:3388 do_mount fs/namespace.c:3401 [inline] __do_sys_mount fs/namespace.c:3609 [inline] __se_sys_mount fs/namespace.c:3586 [inline] __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3586 __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+0x58/0x138 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 11: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_alloc_info+0x28/0x34 mm/kasan/generic.c:505 __kasan_slab_alloc+0x70/0x88 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x74/0x43c 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+0x234/0x318 mm/slub.c:3422 kmem_cache_zalloc include/linux/slab.h:689 [inline] _xfs_buf_alloc+0x78/0xcb0 fs/xfs/xfs_buf.c:225 xfs_buf_find_insert+0x64/0x10b8 fs/xfs/xfs_buf.c:617 xfs_buf_get_map+0x10c4/0x1998 fs/xfs/xfs_buf.c:708 xfs_trans_get_buf_map+0x154/0x854 fs/xfs/xfs_trans_buf.c:156 xfs_trans_get_buf fs/xfs/xfs_trans.h:189 [inline] xfs_dquot_disk_alloc+0x55c/0xa00 fs/xfs/xfs_dquot.c:345 xfs_qm_dqread+0x158/0x6e4 fs/xfs/xfs_dquot.c:665 xfs_qm_dqget+0x180/0x510 fs/xfs/xfs_dquot.c:869 xfs_qm_quotacheck_dqadjust+0xc4/0x664 fs/xfs/xfs_qm.c:1085 xfs_qm_dqusage_adjust+0x3e4/0x554 fs/xfs/xfs_qm.c:1211 xfs_iwalk_ag_recs+0x434/0x854 fs/xfs/xfs_iwalk.c:220 xfs_iwalk_run_callbacks+0x1bc/0x3b0 fs/xfs/xfs_iwalk.c:376 xfs_iwalk_ag+0x6a4/0x814 fs/xfs/xfs_iwalk.c:482 xfs_iwalk_ag_work+0xfc/0x1a8 fs/xfs/xfs_iwalk.c:624 xfs_pwork_work+0x80/0x1a4 fs/xfs/xfs_pwork.c:47 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 Last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xc0/0xdc mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 call_rcu+0xfc/0x948 kernel/rcu/tree.c:2845 xfs_buf_free+0x180/0x3f4 fs/xfs/xfs_buf.c:321 xfs_buf_rele+0xdf8/0x1430 fs/xfs/xfs_buf.c:-1 xfs_buftarg_drain+0x3c8/0x528 fs/xfs/xfs_buf.c:1854 xfs_log_unmount+0x120/0x194 fs/xfs/xfs_log.c:1105 xfs_unmountfs+0x1ac/0x248 fs/xfs/xfs_mount.c:1096 xfs_fs_put_super+0x78/0x260 fs/xfs/xfs_super.c:1118 generic_shutdown_super+0x130/0x324 fs/super.c:501 kill_block_super+0x70/0xdc fs/super.c:1470 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xe8/0x108 fs/super.c:363 cleanup_mnt+0x37c/0x404 fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x1ec/0x270 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x1f70/0x2b0c arch/arm64/kernel/signal.c:1137 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+0x98/0x138 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+0xc0/0xdc mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 insert_work+0x64/0x37c kernel/workqueue.c:1361 __queue_work+0xcbc/0x123c kernel/workqueue.c:1520 queue_work_on+0xc0/0x16c kernel/workqueue.c:1548 queue_work include/linux/workqueue.h:512 [inline] xfs_buf_ioend_async fs/xfs/xfs_buf.c:1359 [inline] xfs_buf_bio_end_io+0x1d4/0x260 fs/xfs/xfs_buf.c:1443 bio_endio+0x770/0x7b4 block/bio.c:1554 req_bio_endio block/blk-mq.c:780 [inline] blk_update_request+0x49c/0xbec block/blk-mq.c:925 blk_mq_end_request+0x54/0x88 block/blk-mq.c:1050 lo_complete_rq+0x1ec/0x250 drivers/block/loop.c:365 blk_complete_reqs block/blk-mq.c:1130 [inline] blk_done_softirq+0x11c/0x168 block/blk-mq.c:1135 handle_softirqs+0x318/0xc6c kernel/softirq.c:578 run_ksoftirqd+0x7c/0x2a0 kernel/softirq.c:945 smpboot_thread_fn+0x4b0/0x964 kernel/smpboot.c:164 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 The buggy address belongs to the object at ffff0000e3ab7a80 which belongs to the cache xfs_buf of size 648 The buggy address is located 600 bytes to the right of 648-byte region [ffff0000e3ab7a80, ffff0000e3ab7d08) The buggy address belongs to the physical page: page:00000000bb7e9e4a refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0000e3ab5d40 pfn:0x123ab4 head:00000000bb7e9e4a order:2 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c6f50600 raw: ffff0000e3ab5d40 0000000080130005 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000e3ab7e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000e3ab7e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000e3ab7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000e3ab7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000e3ab8000: 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: 1 PID: 10951 Comm: syz.3.3042 Tainted: G B 6.1.140-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ntfs_iget5+0x12c/0x2b10 fs/ntfs3/inode.c:526 lr : ntfs_iget5+0x120/0x2b10 fs/ntfs3/inode.c:526 sp : ffff800020cd7600 x29: ffff800020cd7820 x28: ffff0000dd94c000 x27: ffff0000cc1121e8 x26: ffff800020cd7780 x25: dfff800000000000 x24: ffff70000419aef0 x23: ffff800011d937c0 x22: 0000000000000010 x21: 0000000000000002 x20: ffff0000e3ab8190 x19: 0000000000000000 x18: ffff800011a7bd00 x17: 0000000000000000 x16: ffff800008042940 x15: 0000000000000002 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000 x11: 000000000003d7cd x10: ffff8000258ca000 x9 : 0000000000000000 x8 : 0000000000000002 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020cd6fd8 x4 : ffff800015154740 x3 : ffff800008190ed8 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000001 Call trace: ntfs_iget5+0x12c/0x2b10 fs/ntfs3/inode.c:526 ntfs_fill_super+0x1a64/0x32ac fs/ntfs3/super.c:1033 get_tree_bdev+0x358/0x544 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+0x228/0x810 fs/namespace.c:3058 path_mount+0x5b4/0xe78 fs/namespace.c:3388 do_mount fs/namespace.c:3401 [inline] __do_sys_mount fs/namespace.c:3609 [inline] __se_sys_mount fs/namespace.c:3586 [inline] __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3586 __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+0x58/0x138 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: 97cc5612 f94002c8 91004116 d343fec8 (38f96908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97cc5612 bl 0xffffffffff315848 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