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BUG: KASAN: stack-out-of-bounds in native_save_fl arch/x86/include/asm/irqflags.h:35 [inline]
BUG: KASAN: stack-out-of-bounds in arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
BUG: KASAN: stack-out-of-bounds in arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
BUG: KASAN: stack-out-of-bounds in lock_acquire+0x1c3/0x3c0 kernel/locking/lockdep.c:5669
Read of size 8 at addr ffffc900050b795f by task syz-executor.3/9606

CPU: 1 PID: 9606 Comm: syz-executor.3 Not tainted 6.0.0-syzkaller-06475-g4c86114194e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 print_address_description+0x65/0x4b0 mm/kasan/report.c:317
 print_report+0x108/0x1f0 mm/kasan/report.c:433
 kasan_report+0xc3/0xf0 mm/kasan/report.c:495
 native_save_fl arch/x86/include/asm/irqflags.h:35 [inline]
 arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
 arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
 lock_acquire+0x1c3/0x3c0 kernel/locking/lockdep.c:5669
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 inode_sb_list_del fs/inode.c:502 [inline]
 evict+0x161/0x620 fs/inode.c:653
 ntfs_fill_super+0x3af3/0x42a0 fs/ntfs3/super.c:1190
 get_tree_bdev+0x400/0x620 fs/super.c:1323
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f906a28bada
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f906b331f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f906a28bada
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f906b331fe0
RBP: 00007f906b332020 R08: 00007f906b332020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f906b331fe0 R15: 00000000200022c0
 </TASK>

The buggy address belongs to stack of task syz-executor.3/9606
 and is located at offset 31 in frame:
 lock_acquire+0x0/0x3c0 kernel/locking/lockdep.c:5621

This frame has 3 objects:
 [32, 40) 'flags.i.i.i87'
 [64, 72) 'flags.i.i.i'
 [96, 136) 'hlock'

The buggy address belongs to the virtual mapping at
 [ffffc900050b0000, ffffc900050b9000) created by:
 dup_task_struct+0x8b/0x490 kernel/fork.c:977

The buggy address belongs to the physical page:
page:ffffea0000bdc2c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f70b
memcg:ffff888023019882
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff888023019882
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 9603, tgid 9603 (syz-executor.3), ts 340240632394, free_ts 340237549239
 prep_new_page mm/page_alloc.c:2532 [inline]
 get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4283
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5549
 vm_area_alloc_pages mm/vmalloc.c:2958 [inline]
 __vmalloc_area_node mm/vmalloc.c:3026 [inline]
 __vmalloc_node_range+0x8f4/0x1290 mm/vmalloc.c:3196
 alloc_thread_stack_node+0x307/0x500 kernel/fork.c:312
 dup_task_struct+0x8b/0x490 kernel/fork.c:977
 copy_process+0x637/0x3fa0 kernel/fork.c:2085
 kernel_clone+0x21f/0x790 kernel/fork.c:2671
 __do_sys_clone kernel/fork.c:2805 [inline]
 __se_sys_clone kernel/fork.c:2789 [inline]
 __x64_sys_clone+0x228/0x290 kernel/fork.c:2789
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1449 [inline]
 free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1499
 free_unref_page_prepare mm/page_alloc.c:3380 [inline]
 free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3476
 free_slab mm/slub.c:2073 [inline]
 discard_slab mm/slub.c:2079 [inline]
 __unfreeze_partials+0x1ab/0x200 mm/slub.c:2553
 put_cpu_partial+0x106/0x170 mm/slub.c:2629
 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:447
 kasan_slab_alloc include/linux/kasan.h:224 [inline]
 slab_post_alloc_hook mm/slab.h:727 [inline]
 slab_alloc_node mm/slub.c:3248 [inline]
 slab_alloc mm/slub.c:3256 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3263 [inline]
 kmem_cache_alloc+0x1a6/0x310 mm/slub.c:3273
 kmem_cache_zalloc include/linux/slab.h:723 [inline]
 jbd2_alloc_handle include/linux/jbd2.h:1596 [inline]
 new_handle fs/jbd2/transaction.c:476 [inline]
 jbd2__journal_start+0x143/0x5b0 fs/jbd2/transaction.c:503
 __ext4_journal_start_sb+0x111/0x1d0 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_handle_inode_extension+0x1c9/0x8c0 fs/ext4/file.c:340
 ext4_dio_write_iter fs/ext4/file.c:594 [inline]
 ext4_file_write_iter+0x1563/0x18d0 fs/ext4/file.c:698
 do_iter_write+0x6c2/0xc20 fs/read_write.c:861
 iter_file_splice_write+0x7fc/0xfc0 fs/splice.c:686
 do_splice_from fs/splice.c:764 [inline]
 direct_splice_actor+0xe6/0x1c0 fs/splice.c:931
 splice_direct_to_actor+0x4e4/0xc00 fs/splice.c:886

Memory state around the buggy address:
 ffffc900050b7800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900050b7880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc900050b7900: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f2 f2 f2
                                                    ^
 ffffc900050b7980: 00 f2 f2 f2 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3
 ffffc900050b7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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