------------[ cut here ]------------
WARNING: CPU: 0 PID: 4249 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4249 Comm: kworker/0:6 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: events pwq_unbound_release_workfn
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 3d 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 c0 f3 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:ffffc90000007c50 EFLAGS: 00010006
RAX: ffffffff819ed760 RBX: 0000000000000000 RCX: ffff888025059dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1004a0b3b9
R10: ffffed1004a0b3b9 R11: 1ffff11004a0b3b8 R12: ffff88802505b548
R13: 00007ffffffff000 R14: ffffc90000007cc8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000be8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
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_f3c4d654356a1293+0x34/0xd58
bpf_dispatcher_nop_func include/linux/bpf.h:888 [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_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
switch_mm_irqs_off+0x6e3/0x9a0 arch/x86/mm/tlb.c:-1
flush_tlb_func+0x1bc/0x510 arch/x86/mm/tlb.c:773
flush_smp_call_function_queue+0x2a9/0x760 kernel/smp.c:628
__sysvec_call_function_single+0x98/0x240 arch/x86/kernel/smp.c:248
instr_sysvec_call_function_single arch/x86/kernel/smp.c:243 [inline]
sysvec_call_function_single+0x98/0xc0 arch/x86/kernel/smp.c:243
asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684
RIP: 0010:lockdep_unregister_key+0x4ae/0x500 kernel/locking/lockdep.c:6334
Code: 48 3b 84 24 80 00 00 00 75 39 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 0e 50 4c 08 41 f7 c4 00 02 00 00 74 8b fb 84 db <75> 8a eb 9b 0f 0b e9 58 ff ff ff 0f 0b e9 c4 fe ff ff 0f 0b e9 11
RSP: 0018:ffffc9000433fb20 EFLAGS: 00000246
RAX: 346de7cdcea95d00 RBX: 0000000000000000 RCX: 346de7cdcea95d00
RDX: 0000000000000001 RSI: ffffffff8a0b2620 RDI: ffffffff8a59a480
RBP: ffffc9000433fbf0 R08: dffffc0000000000 R09: fffffbfff1fedb3a
R10: fffffbfff1fedb3a R11: 1ffffffff1fedb39 R12: 0000000000000203
R13: ffff888060517929 R14: ffffffff8ff6c018 R15: 1ffff92000867f68
wq_unregister_lockdep kernel/workqueue.c:3518 [inline]
pwq_unbound_release_workfn+0x262/0x2b0 kernel/workqueue.c:3756
process_one_work+0x863/0x1000 kernel/workqueue.c:2310
worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
----------------
Code disassembly (best guess):
0: 48 3b 84 24 80 00 00 cmp 0x80(%rsp),%rax
7: 00
8: 75 39 jne 0x43
a: 48 8d 65 d8 lea -0x28(%rbp),%rsp
e: 5b pop %rbx
f: 41 5c pop %r12
11: 41 5d pop %r13
13: 41 5e pop %r14
15: 41 5f pop %r15
17: 5d pop %rbp
18: c3 ret
19: e8 0e 50 4c 08 call 0x84c502c
1e: 41 f7 c4 00 02 00 00 test $0x200,%r12d
25: 74 8b je 0xffffffb2
27: fb sti
28: 84 db test %bl,%bl
* 2a: 75 8a jne 0xffffffb6 <-- trapping instruction
2c: eb 9b jmp 0xffffffc9
2e: 0f 0b ud2
30: e9 58 ff ff ff jmp 0xffffff8d
35: 0f 0b ud2
37: e9 c4 fe ff ff jmp 0xffffff00
3c: 0f 0b ud2
3e: e9 .byte 0xe9
3f: 11 .byte 0x11