------------[ cut here ]------------
WARNING: CPU: 0 PID: 8047 at mm/page_alloc.c:4935 __alloc_frozen_pages_noprof+0x30b/0x23f0 mm/page_alloc.c:4935
Modules linked in:
CPU: 0 UID: 0 PID: 8047 Comm: syz.3.460 Not tainted 6.16.0-rc6-syzkaller-00287-g990b11a523a8 #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__alloc_frozen_pages_noprof+0x30b/0x23f0 mm/page_alloc.c:4935
Code: f0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 7f d3 72 09 83 fe 0a 0f 86 0a fe ff ff 80 3d da eb 7e 0e 00 75 0b c6 05 d1 eb 7e 0e 01 90 <0f> 0b 90 45 31 f6 eb 81 4d 85 f6 74 22 44 89 fa 89 ee 4c 89 f7 e8
RSP: 0018:ffffc9000d08f988 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000015 RDI: 0000000000040dc0
RBP: 0000000140003d68 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000015
R13: 1ffff92001a11f46 R14: 0000000140003d68 R15: 0000000000000015
FS: 0000000000000000(0000) GS:ffff88809752d000(0063) knlGS:00000000f508eb40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7407994 CR3: 000000006d8b0000 CR4: 0000000000352ef0
Call Trace:
<TASK>
__alloc_pages_noprof+0xb/0x1b0 mm/page_alloc.c:4993
__alloc_pages_node_noprof include/linux/gfp.h:284 [inline]
alloc_pages_node_noprof include/linux/gfp.h:311 [inline]
___kmalloc_large_node+0x84/0x1e0 mm/slub.c:4272
__kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:4300
__do_kmalloc_node mm/slub.c:4316 [inline]
__kmalloc_noprof.cold+0xc/0x61 mm/slub.c:4340
kmalloc_noprof include/linux/slab.h:909 [inline]
kmalloc_array_noprof include/linux/slab.h:948 [inline]
compat_insnlist drivers/comedi/comedi_fops.c:3145 [inline]
comedi_compat_ioctl+0x3e9/0x910 drivers/comedi/comedi_fops.c:3225
__do_compat_sys_ioctl fs/ioctl.c:1005 [inline]
__se_compat_sys_ioctl fs/ioctl.c:948 [inline]
__ia32_compat_sys_ioctl+0x23f/0x370 fs/ioctl.c:948
do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
__do_fast_syscall_32+0x7c/0x3a0 arch/x86/entry/syscall_32.c:306
do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf709e579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f508e55c EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000008008640b
RDX: 0000000080113800 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 ret
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi