syzbot

ntfs3: loop0: Different NTFS' sector size (1024) and media sector size (512)
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BUG: KASAN: stack-out-of-bounds in save_return_addr+0xd8/0xdc arch/arm64/kernel/return_address.c:25
Read of size 4 at addr ffff80002cd175bf by task syz-executor.0/10048

CPU: 0 PID: 10048 Comm: syz-executor.0 Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:319 [inline]
 print_report+0x174/0x514 mm/kasan/report.c:430
 kasan_report+0xd4/0x130 mm/kasan/report.c:536
 __asan_report_load4_noabort+0x20/0x2c mm/kasan/report_generic.c:380
 save_return_addr+0xd8/0xdc arch/arm64/kernel/return_address.c:25
 unwind arch/arm64/kernel/stacktrace.c:138 [inline]
 arch_stack_walk+0x148/0x2b4 arch/arm64/kernel/stacktrace.c:208
 return_address+0xcc/0x16c arch/arm64/kernel/return_address.c:42
 trace_hardirqs_on+0xd8/0x28c kernel/trace/trace_preemptirq.c:56
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
 _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202
 spin_unlock_irq include/linux/spinlock.h:400 [inline]
 truncate_inode_pages_final+0x78/0xc0 mm/truncate.c:480
 ntfs_evict_inode+0x24/0xc8 fs/ntfs3/inode.c:1771
 evict+0x260/0x68c fs/inode.c:665
 iput_final fs/inode.c:1748 [inline]
 iput+0x734/0x818 fs/inode.c:1774
 ntfs_fill_super+0x34a8/0x3b9c fs/ntfs3/super.c:1239
 get_tree_bdev+0x360/0x54c fs/super.c:1303
 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1408
 vfs_get_tree+0x90/0x274 fs/super.c:1510
 do_new_mount+0x25c/0x8c8 fs/namespace.c:3042
 path_mount+0x590/0xe04 fs/namespace.c:3372
 do_mount fs/namespace.c:3385 [inline]
 __do_sys_mount fs/namespace.c:3594 [inline]
 __se_sys_mount fs/namespace.c:3571 [inline]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3571
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x4c/0x15c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

The buggy address belongs to stack of task syz-executor.0/10048
 and is located at offset 31 in frame:
 return_address+0x0/0x16c

This frame has 1 object:
 [32, 48) 'data'

The buggy address belongs to the virtual mapping at
 [ffff80002cd10000, ffff80002cd19000) created by:
 copy_process+0x4b8/0x3808 kernel/fork.c:2098

The buggy address belongs to the physical page:
page:000000007075a581 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11389b
memcg:ffff0000ddcf7002
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff0000ddcf7002
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff80002cd17480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff80002cd17500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff80002cd17580: 00 00 00 00 f1 f1 f1 f1 00 00 f3 f3 00 00 00 00
                                        ^
 ffff80002cd17600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff80002cd17680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
ntfs3: loop0: Mark volume as dirty due to NTFS errors