------------[ cut here ]------------
WARNING: CPU: 0 PID: 8972 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 0 PID: 8972 Comm: syz.0.1048 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 cb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 c6 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc900000079f0 EFLAGS: 00010246
RAX: ffffffff81aaacec RBX: 0000000000000000 RCX: ffff88802b585940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaabfd R09: ffffed10056b0b29
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffffc90000007a68
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c285a7e CR3: 0000000066396000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
 bpf_prog_1f2e894253ad50c0+0x35/0xa4c
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1916
 __bpf_trace_kmem_cache_free+0x99/0xc0 include/trace/events/kmem.h:138
 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline]
 kmem_cache_free+0x1ce/0x1f0 mm/slub.c:3516
 rcu_do_batch kernel/rcu/tree.c:2523 [inline]
 rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 51 67 f6 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 3e db 24 f7 48 89 df e8 96 2f 26 f7 e8 51 ea 48 f7 fb bf 01 00 00 00 <e8> f6 74 19 f7 65 8b 05 17 68 c4 75 85 c0 74 02 5b c3 e8 e4 84 c2
RSP: 0018:ffffc900034472e8 EFLAGS: 00000282
RAX: 7152fefb4a670900 RBX: ffff88805f641600 RCX: ffffffff9686af03
RDX: dffffc0000000000 RSI: ffffffff8a8b2a80 RDI: 0000000000000001
RBP: ffff88805f6415f8 R08: ffffffff8186f220 R09: ffffed100bec82c1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0001301380
R13: 00fff00000080017 R14: ffffea0001301388 R15: ffffea0001301380
 spin_unlock_irq include/linux/spinlock.h:413 [inline]
 delete_from_page_cache+0x12e/0x190 mm/filemap.c:267
 truncate_inode_page+0x8d/0xb0 mm/truncate.c:219
 shmem_undo_range+0x535/0x1b50 mm/shmem.c:960
 shmem_truncate_range mm/shmem.c:1063 [inline]
 shmem_evict_inode+0x21b/0xa00 mm/shmem.c:1147
 evict+0x529/0x930 fs/inode.c:622
 __dentry_kill+0x436/0x650 fs/dcache.c:586
 dentry_kill+0xbb/0x290
 dput+0xd8/0x1a0 fs/dcache.c:893
 __fput+0x636/0x8e0 fs/file_table.c:288
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:874
 do_group_exit+0x144/0x310 kernel/exit.c:996
 get_signal+0xc66/0x14e0 kernel/signal.c:2900
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:320
 exc_page_fault+0x342/0x700 arch/x86/mm/fault.c:1504
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7f336ca89821
Code: Unable to access opcode bytes at RIP 0x7f336ca897f7.
RSP: 002b:00000000fffffe10 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f336cc40fa0 RCX: 00007f336ca89819
RDX: 0000000000000000 RSI: 00000000fffffe10 RDI: 0000000000000000
RBP: 00007f336cafc75e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f336cc40fa0 R15: 00007ffffffb24f8
 </TASK>
----------------
Code disassembly (best guess):
   0:	51                   	push   %rcx
   1:	67 f6 ff             	addr32 idiv %bh
   4:	90                   	nop
   5:	53                   	push   %rbx
   6:	48 89 fb             	mov    %rdi,%rbx
   9:	48 83 c7 18          	add    $0x18,%rdi
   d:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  12:	e8 3e db 24 f7       	call   0xf724db55
  17:	48 89 df             	mov    %rbx,%rdi
  1a:	e8 96 2f 26 f7       	call   0xf7262fb5
  1f:	e8 51 ea 48 f7       	call   0xf748ea75
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 f6 74 19 f7       	call   0xf7197525 <-- trapping instruction
  2f:	65 8b 05 17 68 c4 75 	mov    %gs:0x75c46817(%rip),%eax        # 0x75c4684d
  36:	85 c0                	test   %eax,%eax
  38:	74 02                	je     0x3c
  3a:	5b                   	pop    %rbx
  3b:	c3                   	ret
  3c:	e8                   	.byte 0xe8
  3d:	e4 84                	in     $0x84,%al
  3f:	c2                   	.byte 0xc2