RBP: 00007ffbd227dd60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fffd52fcaff R14: 00007ffbd227e300 R15: 0000000000022000
 </TASK>
------------[ cut here ]------------
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#0: syz-executor.3/6629
Modules linked in:
CPU: 0 UID: 0 PID: 6629 Comm: syz-executor.3 Not tainted 6.18.0-rc4-next-20251104 #1 PREEMPT(voluntary) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:get_data+0x364/0x400
Code: e8 83 e0 07 83 c0 03 38 d0 0f 8c be fe ff ff 84 d2 0f 84 b6 fe ff ff 48 89 ef e8 d7 f1 5b 00 e9 a9 fe ff ff e8 3d f2 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 2c f2 1e 00 90 0f 0b 90 45 31
RSP: 0018:ffff88806ce086b8 EFLAGS: 00010046
RAX: 0000000000010000 RBX: ffff88806ce087d0 RCX: ffffffff81559466
RDX: ffff88801d8f8000 RSI: ffffffff81559633 RDI: 0000000000000006
RBP: ffff88806ce08798 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85d2e3d0
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS:  00007ffbd227e700(0000) GS:ffff8880e53a8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558f97e708 CR3: 000000001779d000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 _prb_read_valid+0x2f3/0x830
 prb_read_valid+0x78/0xa0
 printk_get_next_message+0x10b/0x570
 console_flush_one_record+0x64f/0xb20
 __console_flush_and_unlock+0xb1/0x1d0
 wake_up_klogd_work_func+0x17c/0x1e0
 irq_work_single+0x128/0x260
 irq_work_run_list+0x91/0xc0
 update_process_times+0x12f/0x210
 tick_nohz_handler+0x4ff/0x8c0
 __hrtimer_run_queues+0x60f/0xac0
 hrtimer_interrupt+0x369/0x830
 __sysvec_apic_timer_interrupt+0xbb/0x330
 sysvec_apic_timer_interrupt+0x6b/0x80
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:dump_stack_lvl+0x115/0x120
Code: fc ff ff 4c 89 e2 31 f6 31 ff e8 f6 f5 6f fc e8 11 2b 9a fc 48 89 ee 31 ff e8 d7 35 ba fc e8 72 3a ba fc e8 1d a5 c2 fc fb 5b <5d> 41 5c e9 63 3a ba fc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffff888051047550 EFLAGS: 00000202
RAX: 00000000000001b3 RBX: ffffffff85f023e0 RCX: 0000000000000040
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84ba4e03
RBP: 0000000000000200 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff86648157 R11: 0000000000000001 R12: ffffffff855203a0
R13: ffffffff85f023f0 R14: 0000000000000000 R15: 0000000000000000
 should_fail_ex+0x4d7/0x5e0
 should_fail_alloc_page+0xe0/0x110
 prepare_alloc_pages+0x1eb/0x550
 __alloc_frozen_pages_noprof+0x17f/0x1f20
 alloc_pages_mpol+0xed/0x340
 alloc_pages_noprof+0x9d/0x180
 get_zeroed_page_noprof+0x18/0xb0
 mon_alloc_buff+0xed/0x250
 mon_bin_open+0x209/0x4a0
 chrdev_open+0x234/0x690
 do_dentry_open+0x71c/0x1420
 vfs_open+0x82/0x3f0
 path_openat+0x1c3f/0x2880
 do_filp_open+0x1e8/0x450
 do_sys_openat2+0x104/0x1b0
 __x64_sys_openat+0x142/0x200
 do_syscall_64+0xbf/0x3f0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffbd4cbba04
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007ffbd227dcc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007ffbd4cbba04
RDX: 0000000000000000 RSI: 00007ffbd227dd60 RDI: 00000000ffffff9c
RBP: 00007ffbd227dd60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fffd52fcaff R14: 00007ffbd227e300 R15: 0000000000022000
 </TASK>
irq event stamp: 436
hardirqs last  enabled at (435): [<ffffffff84ba4e03>] dump_stack_lvl+0x113/0x120
hardirqs last disabled at (436): [<ffffffff84c372af>] sysvec_apic_timer_interrupt+0xf/0x80
softirqs last  enabled at (430): [<ffffffff813bc1cc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (421): [<ffffffff813bc564>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	ff 4c 89 e2          	decl   -0x1e(%rcx,%rcx,4)
   4:	31 f6                	xor    %esi,%esi
   6:	31 ff                	xor    %edi,%edi
   8:	e8 f6 f5 6f fc       	callq  0xfc6ff603
   d:	e8 11 2b 9a fc       	callq  0xfc9a2b23
  12:	48 89 ee             	mov    %rbp,%rsi
  15:	31 ff                	xor    %edi,%edi
  17:	e8 d7 35 ba fc       	callq  0xfcba35f3
  1c:	e8 72 3a ba fc       	callq  0xfcba3a93
  21:	e8 1d a5 c2 fc       	callq  0xfcc2a543
  26:	fb                   	sti
  27:	5b                   	pop    %rbx
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	41 5c                	pop    %r12
  2b:	e9 63 3a ba fc       	jmpq   0xfcba3a93
  30:	0f 1f 00             	nopl   (%rax)
  33:	90                   	nop
  34:	90                   	nop
  35:	90                   	nop
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop