general protection fault, probably for non-canonical address 0xdffffc0000000034: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000001a0-0x00000000000001a7]
CPU: 0 PID: 5664 Comm: syz-executor.4 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:__lock_acquire+0x6a/0x1fd0 kernel/locking/lockdep.c:5005
Code: df 0f b6 04 30 84 c0 0f 85 4b 16 00 00 83 3d 58 cd 15 0e 00 0f 84 1c 11 00 00 83 3d 0f 4c 8e 0c 00 74 2c 4c 89 e0 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 e7 e8 08 a4 86 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc900051cf6b0 EFLAGS: 00010002
RAX: 0000000000000034 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001a0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f0e74e R12: 00000000000001a0
R13: 0000000000000000 R14: ffff88801773da00 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9400000(0063) knlGS:00000000f5e9ab40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000031223000 CR3: 00000000785fe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
 down_read_killable+0xca/0xd30 kernel/locking/rwsem.c:1549
 mmap_read_lock_killable include/linux/mmap_lock.h:155 [inline]
 do_pagemap_scan fs/proc/task_mmu.c:2460 [inline]
 do_pagemap_cmd+0x8c2/0x1330 fs/proc/task_mmu.c:2513
 __do_compat_sys_ioctl fs/ioctl.c:1004 [inline]
 __se_compat_sys_ioctl+0x51c/0xca0 fs/ioctl.c:947
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xbe/0x120 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:346
 entry_SYSENTER_compat_after_hwframe+0x7a/0x84
RIP: 0023:0xf72a0579
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 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f5e9a5ac EFLAGS: 00000206 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000c0606610
RDX: 0000000020000300 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x6a/0x1fd0 kernel/locking/lockdep.c:5005
Code: df 0f b6 04 30 84 c0 0f 85 4b 16 00 00 83 3d 58 cd 15 0e 00 0f 84 1c 11 00 00 83 3d 0f 4c 8e 0c 00 74 2c 4c 89 e0 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 e7 e8 08 a4 86 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc900051cf6b0 EFLAGS: 00010002
RAX: 0000000000000034 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001a0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f0e74e R12: 00000000000001a0
R13: 0000000000000000 R14: ffff88801773da00 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9400000(0063) knlGS:00000000f5e9ab40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000031223000 CR3: 00000000785fe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	df 0f                	fisttps (%rdi)
   2:	b6 04                	mov    $0x4,%dh
   4:	30 84 c0 0f 85 4b 16 	xor    %al,0x164b850f(%rax,%rax,8)
   b:	00 00                	add    %al,(%rax)
   d:	83 3d 58 cd 15 0e 00 	cmpl   $0x0,0xe15cd58(%rip)        # 0xe15cd6c
  14:	0f 84 1c 11 00 00    	je     0x1136
  1a:	83 3d 0f 4c 8e 0c 00 	cmpl   $0x0,0xc8e4c0f(%rip)        # 0xc8e4c30
  21:	74 2c                	je     0x4f
  23:	4c 89 e0             	mov    %r12,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 30 00          	cmpb   $0x0,(%rax,%rsi,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 e7             	mov    %r12,%rdi
  33:	e8 08 a4 86 00       	call   0x86a440
  38:	48                   	rex.W
  39:	be 00 00 00 00       	mov    $0x0,%esi
  3e:	00 fc                	add    %bh,%ah