------------[ cut here ]------------
WARNING: CPU: 1 PID: 4355 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 4355 Comm: syz.4.18 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 ed f7 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 70 f4 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000dd0a08 EFLAGS: 00010246
RAX: ffffffff819ecfb0 RBX: 0000000000000008 RCX: ffff88807aa10000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1ff6e19
R10: fffffbfff1ff6e19 R11: 1ffffffff1ff6e18 R12: ffff88807aa11788
R13: 1ffff920001ba150 R14: ffffc90000dd0a68 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2b1aaa CR3: 000000000be8e000 CR4: 00000000003506e0
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_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_d20f016a5d369cb4+0x35/0xd4c
 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+0x17e/0x320 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+0x1e7/0x210 mm/slub.c:3516
 rcu_do_batch kernel/rcu/tree.c:2523 [inline]
 rcu_core+0x962/0x15d0 kernel/rcu/tree.c:2763
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 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:lock_release+0x5be/0x870 kernel/locking/lockdep.c:5647
Code: 43 c6 44 2f 0b 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 c0 00 00 00 0f 85 8b 00 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 0f 0b e9 cb fa ff ff 0f 0b 48 c7 c7 c0 15 0b 8a e8 bb c1 4b
RSP: 0018:ffffc9000339f550 EFLAGS: 00000246
RAX: 7ab63abc552c1b00 RBX: 0000000000000000 RCX: 7ab63abc552c1b00
RDX: 0000000000000001 RSI: ffffffff8a0b2860 RDI: ffffffff8a599340
RBP: ffffc9000339f550 R08: dffffc0000000000 R09: fffffbfff1ad2dd6
R10: fffffbfff1ad2dd6 R11: 1ffffffff1ad2dd5 R12: dffffc0000000000
R13: ffffea0001a24f88 R14: 00007fdd46b1d000 R15: ffffea0001a24f80
 zap_pte_range mm/memory.c:1384 [inline]
 zap_pmd_range mm/memory.c:1505 [inline]
 zap_pud_range mm/memory.c:1534 [inline]
 zap_p4d_range mm/memory.c:1555 [inline]
 unmap_page_range+0xfbc/0x2520 mm/memory.c:1576
 unmap_vmas+0x11b/0x230 mm/memory.c:1653
 exit_mmap+0x38f/0x5f0 mm/mmap.c:3212
 __mmput+0x115/0x3b0 kernel/fork.c:1127
 exit_mm+0x567/0x6c0 kernel/exit.c:550
 do_exit+0x5a1/0x20a0 kernel/exit.c:870
 do_group_exit+0x12e/0x300 kernel/exit.c:997
 get_signal+0x6ca/0x12c0 kernel/signal.c:2900
 arch_do_signal_or_restart+0xc1/0x1300 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd47716be9
Code: Unable to access opcode bytes at RIP 0x7fdd47716bbf.
RSP: 002b:00007fdd4595d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007fdd4793e090 RCX: 00007fdd47716be9
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007fdd47799e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdd4793e128 R14: 00007fdd4793e090 R15: 00007ffc6f647fb8
 </TASK>
----------------
Code disassembly (best guess):
   0:	43 c6 44 2f 0b 00    	movb   $0x0,0xb(%r15,%r13,1)
   6:	65 48 8b 04 25 28 00 	mov    %gs:0x28,%rax
   d:	00 00
   f:	48 3b 84 24 c0 00 00 	cmp    0xc0(%rsp),%rax
  16:	00
  17:	0f 85 8b 00 00 00    	jne    0xa8
  1d:	48 8d 65 d8          	lea    -0x28(%rbp),%rsp
  21:	5b                   	pop    %rbx
  22:	41 5c                	pop    %r12
  24:	41 5d                	pop    %r13
  26:	41 5e                	pop    %r14
  28:	41 5f                	pop    %r15
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	c3                   	ret
  2c:	0f 0b                	ud2
  2e:	e9 cb fa ff ff       	jmp    0xfffffafe
  33:	0f 0b                	ud2
  35:	48 c7 c7 c0 15 0b 8a 	mov    $0xffffffff8a0b15c0,%rdi
  3c:	e8                   	.byte 0xe8
  3d:	bb                   	.byte 0xbb
  3e:	c1                   	.byte 0xc1
  3f:	4b                   	rex.WXB