syzbot

loop4: detected capacity change from 0 to 4096
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BUG: KASAN: global-out-of-bounds in __lock_acquire+0x5560/0x6544 kernel/locking/lockdep.c:5019
Read of size 4 at addr ffff80001c267800 by task syz.4.593/6224

CPU: 0 PID: 6224 Comm: syz.4.593 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_load4_noabort+0x2c/0x38 mm/kasan/report_generic.c:350
 __lock_acquire+0x5560/0x6544 kernel/locking/lockdep.c:5019
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 iput_final fs/inode.c:1823 [inline]
 iput+0x5d4/0x7f4 fs/inode.c:1860
 ntfs_fill_super+0x2cec/0x32ac fs/ntfs3/super.c:1214
 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

The buggy address belongs to the variable:
 oops_in_progress+0x0/0x20

The buggy address belongs to the virtual mapping at
 [ffff800014fe0000, ffff80001c721000) created by:
 map_kernel+0x1d0/0x384 arch/arm64/mm/mmu.c:792

The buggy address belongs to the physical page:
page:000000001a9b8b31 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x215a67
flags: 0x5ffc00000001000(reserved|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000001000 fffffc00075699c8 fffffc00075699c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff80001c267700: 00 00 f9 f9 00 00 f9 f9 00 00 f9 f9 00 00 00 00
 ffff80001c267780: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 00 f9 f9 f9
>ffff80001c267800: 04 f9 f9 f9 00 f9 f9 f9 04 f9 f9 f9 04 f9 f9 f9
                   ^
 ffff80001c267880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff80001c267900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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