syzbot

loop1: detected capacity change from 0 to 4096
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __schedule+0x1abf/0x4ca0 kernel/sched/core.c:-1
CPU: 1 UID: 0 PID: 6729 Comm: syz.1.143 Tainted: G        W           6.16.0-syzkaller-04405-g4b290aae788e #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x99/0x250 lib/dump_stack.c:120
 panic+0x2db/0x790 kernel/panic.c:442
 __stack_chk_fail+0x26/0x30 kernel/panic.c:929
 __schedule+0x1abf/0x4ca0 kernel/sched/core.c:-1
 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7281
 irqentry_exit+0x6f/0x90 kernel/entry/common.c:196
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x0/0xa0 kernel/kcov.c:320
Code: 00 00 48 89 7c 0a 10 48 89 74 0a 18 48 89 44 0a 20 c3 cc cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 e0 cf 91 65 44 8b 05 d7
RSP: 0018:ffffc90005f5f7f0 EFLAGS: 00000246
RAX: ffffffff81f82a44 RBX: ffffea0001901480 RCX: ffff888024fa8000
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffffd4000320291 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff94000320291 R12: 0000000000000000
R13: 1ffffd4000320290 R14: ffffea0001901488 R15: 0000000000000000
 folio_mark_accessed+0x115/0x4a0 mm/swap.c:-1
 do_read_cache_folio+0x45d/0x560 mm/filemap.c:3932
 do_read_cache_page mm/filemap.c:3989 [inline]
 read_cache_page+0x5d/0x170 mm/filemap.c:3998
 read_mapping_page include/linux/pagemap.h:993 [inline]
 inode_read_data+0xa9/0x460 fs/ntfs3/inode.c:1054
 ntfs_fill_super+0x341c/0x40b0 fs/ntfs3/super.c:1482
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1692
 vfs_get_tree+0x92/0x2b0 fs/super.c:1815
 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3805
 do_mount fs/namespace.c:4133 [inline]
 __do_sys_mount fs/namespace.c:4344 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4321
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f545aff014a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5458e55e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f5458e55ef0 RCX: 00007f545aff014a
RDX: 0000200000000280 RSI: 0000200000000300 RDI: 00007f5458e55eb0
RBP: 0000200000000280 R08: 00007f5458e55ef0 R09: 0000000000210802
R10: 0000000000210802 R11: 0000000000000246 R12: 0000200000000300
R13: 00007f5458e55eb0 R14: 000000000001f781 R15: 0000200000000840
 </TASK>
Kernel Offset: disabled
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 89 7c 0a 10       	mov    %rdi,0x10(%rdx,%rcx,1)
   7:	48 89 74 0a 18       	mov    %rsi,0x18(%rdx,%rcx,1)
   c:	48 89 44 0a 20       	mov    %rax,0x20(%rdx,%rcx,1)
  11:	c3                   	ret
  12:	cc                   	int3
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
  16:	cc                   	int3
  17:	0f 1f 00             	nopl   (%rax)
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	90                   	nop
  27:	90                   	nop
  28:	90                   	nop
  29:	90                   	nop
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	48 8b 04 24          	mov    (%rsp),%rax
  32:	65 48 8b 0c 25 08 e0 	mov    %gs:0xffffffff91cfe008,%rcx
  39:	cf 91
  3b:	65                   	gs
  3c:	44                   	rex.R
  3d:	8b                   	.byte 0x8b
  3e:	05                   	.byte 0x5
  3f:	d7                   	xlat   %ds:(%rbx)