------------[ cut here ]------------
WARNING: CPU: 1 PID: 4197 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 4197 Comm: udevd 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:ffffc90000dd09b8 EFLAGS: 00010246
RAX: ffffffff819ecfb0 RBX: 0000000000000008 RCX: ffff888073ec5940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100e7d8b29
R10: ffffed100e7d8b29 R11: 1ffff1100e7d8b28 R12: ffff888073ec70c8
R13: 00007ffffffff000 R14: ffffc90000dd0a28 R15: 0000000000000002
FS:  00007f319a354880(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000002 CR3: 0000000062c25000 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_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_9dc53d0e355d3593+0x59/0x1b4
 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
 dst_destroy+0x20e/0x2e0 net/core/dst.c:120
 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:__should_failslab+0x0/0xe0 mm/failslab.c:18
Code: 62 03 00 00 00 00 00 49 c7 86 00 62 03 00 00 00 00 00 49 c7 86 10 62 03 00 00 00 00 00 31 c0 5b 41 5c 41 5e 41 5f c3 00 00 cc <55> 41 57 41 56 53 89 f5 48 89 fb 49 bf 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc90002fffe38 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90002fffe78 RCX: ef6168403d7ae300
RDX: ffff888073ec5940 RSI: 0000000000000cc0 RDI: ffff8880169e9500
RBP: 0000000000000cc0 R08: dffffc0000000000 R09: fffffbfff1ad2dd6
R10: fffffbfff1ad2dd6 R11: 1ffffffff1ad2dd5 R12: 1ffff1100e7d8c58
R13: 0000000000000000 R14: ffff8880169e9500 R15: 0000000000000001
 should_failslab+0x5/0x20 mm/slab_common.c:1350
 slab_pre_alloc_hook+0x51/0xc0 mm/slab.h:494
 slab_alloc_node mm/slub.c:3134 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x3d/0x290 mm/slub.c:3233
 getname_flags+0xb5/0x500 fs/namei.c:138
 getname fs/namei.c:217 [inline]
 __do_sys_rmdir fs/namei.c:4229 [inline]
 __se_sys_rmdir fs/namei.c:4227 [inline]
 __x64_sys_rmdir+0x38/0x50 fs/namei.c:4227
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f319a4b0407
Code: f0 ff ff 73 01 c3 48 8b 0d ee b9 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 54 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 c1 b9 0d 00 f7 d8 64 89 02 b8
RSP: 002b:00007ffd8bda2318 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007ffd8bda2340 RCX: 00007f319a4b0407
RDX: 0000000000000000 RSI: 00000000000007cf RDI: 00007ffd8bda2740
RBP: 000055b98abda370 R08: 000055b98abc7420 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000055b98abe0750
R13: 00007ffd8bda2f40 R14: 0000000000000000 R15: 00007ffd8bda2740
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	03 00                	add    (%rax),%eax
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	49 c7 86 00 62 03 00 	movq   $0x0,0x36200(%r14)
   d:	00 00 00 00
  11:	49 c7 86 10 62 03 00 	movq   $0x0,0x36210(%r14)
  18:	00 00 00 00
  1c:	31 c0                	xor    %eax,%eax
  1e:	5b                   	pop    %rbx
  1f:	41 5c                	pop    %r12
  21:	41 5e                	pop    %r14
  23:	41 5f                	pop    %r15
  25:	c3                   	ret
  26:	00 00                	add    %al,(%rax)
  28:	cc                   	int3
* 29:	55                   	push   %rbp <-- trapping instruction
  2a:	41 57                	push   %r15
  2c:	41 56                	push   %r14
  2e:	53                   	push   %rbx
  2f:	89 f5                	mov    %esi,%ebp
  31:	48 89 fb             	mov    %rdi,%rbx
  34:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  3b:	fc ff df
  3e:	48                   	rex.W