Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 UID: 0 PID: 13265 Comm: syz.3.1985 Not tainted 6.13.0-rc3-syzkaller-00044-gaef25be35d23 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:_compound_head include/linux/page-flags.h:242 [inline]
RIP: 0010:mod_lruvec_page_state include/linux/vmstat.h:563 [inline]
RIP: 0010:account_kernel_stack+0x100/0x2e0 kernel/fork.c:546
Code: 00 49 8b 47 20 48 8d 2c d8 48 89 e8 48 c1 e8 03 42 80 3c 20 00 0f 85 be 01 00 00 48 8b 6d 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 9a 01 00 00 4c 8b 6d 08 31 ff 4d 89 ee 41 83
RSP: 0018:ffffc900045efb58 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888030333c00 RSI: ffffffff815906c9 RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed10060668b8
R10: ffff8880303345c3 R11: 0000000000000000 R12: dffffc0000000000
R13: dffffc0000000000 R14: 1ffff1100533e524 R15: ffff8880299f2900
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000d00000 CR3: 000000007d8c0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 exit_task_stack_account+0x23/0xf0 kernel/fork.c:559
 do_exit+0x1c8a/0x2d70 kernel/exit.c:979
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 get_signal+0x2576/0x2610 kernel/signal.c:3017
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6efb985d29
Code: Unable to access opcode bytes at 0x7f6efb985cff.
RSP: 002b:00007f6efc8300e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6efbb76088 RCX: 00007f6efb985d29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6efbb76088
RBP: 00007f6efbb76080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6efbb7608c
R13: 0000000000000000 R14: 00007fff015649b0 R15: 00007fff01564a98
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_compound_head include/linux/page-flags.h:242 [inline]
RIP: 0010:mod_lruvec_page_state include/linux/vmstat.h:563 [inline]
RIP: 0010:account_kernel_stack+0x100/0x2e0 kernel/fork.c:546
Code: 00 49 8b 47 20 48 8d 2c d8 48 89 e8 48 c1 e8 03 42 80 3c 20 00 0f 85 be 01 00 00 48 8b 6d 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 9a 01 00 00 4c 8b 6d 08 31 ff 4d 89 ee 41 83
RSP: 0018:ffffc900045efb58 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888030333c00 RSI: ffffffff815906c9 RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed10060668b8
R10: ffff8880303345c3 R11: 0000000000000000 R12: dffffc0000000000
R13: dffffc0000000000 R14: 1ffff1100533e524 R15: ffff8880299f2900
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001109000 CR3: 000000001293e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 49 8b             	add    %cl,-0x75(%rcx)
   3:	47 20 48 8d          	rex.RXB and %r9b,-0x73(%r8)
   7:	2c d8                	sub    $0xd8,%al
   9:	48 89 e8             	mov    %rbp,%rax
   c:	48 c1 e8 03          	shr    $0x3,%rax
  10:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  15:	0f 85 be 01 00 00    	jne    0x1d9
  1b:	48 8b 6d 00          	mov    0x0(%rbp),%rbp
  1f:	48 8d 7d 08          	lea    0x8(%rbp),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	0f 85 9a 01 00 00    	jne    0x1cf
  35:	4c 8b 6d 08          	mov    0x8(%rbp),%r13
  39:	31 ff                	xor    %edi,%edi
  3b:	4d 89 ee             	mov    %r13,%r14
  3e:	41                   	rex.B
  3f:	83                   	.byte 0x83