------------[ cut here ]------------
WARNING: CPU: 0 PID: 4337 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4337 Comm: kworker/0:4 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: rcu_gp process_srcu
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:ffffc90000007c10 EFLAGS: 00010006
RAX: ffffffff819ecfb0 RBX: 0000000000000000 RCX: ffff8880268dd940
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1004d1bb29
R10: ffffed1004d1bb29 R11: 1ffff11004d1bb28 R12: ffff8880268df0c8
R13: 00007ffffffff000 R14: ffffc90000007c88 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f154522d8 CR3: 000000000be8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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+0x34/0x808
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_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
__traceiter_tlb_flush+0x69/0xb0 include/trace/events/tlb.h:38
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:delay_tsc+0x57/0xc0 arch/x86/lib/delay.c:79
Code: 90 49 89 d7 49 c1 e7 20 49 09 c7 4d 29 f7 49 39 df 73 53 bf 01 00 00 00 e8 46 6c 51 fd 65 8b 05 e7 6b 02 7c 85 c0 74 1c f3 90 01 00 00 00 e8 9f 6a 51 fd e8 8a 39 a8 05 39 c5 75 0e 0f 01 f9
RSP: 0018:ffffc9000307fac0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 0000000000002afa RCX: 0000000000000000
RDX: 0000000000000027 RSI: ffffffff8a599320 RDI: 00000000ffffffff
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffff5200060ff25
R10: fffff5200060ff25 R11: 1ffff9200060ff24 R12: dffffc0000000000
R13: ffffffff96128780 R14: 000000273aff37d8 R15: 0000000000002740
try_check_zero+0x2c7/0x340 kernel/rcu/srcutree.c:702
srcu_advance_state kernel/rcu/srcutree.c:1227 [inline]
process_srcu+0x195/0xc10 kernel/rcu/srcutree.c:1325
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: 90 nop
1: 49 89 d7 mov %rdx,%r15
4: 49 c1 e7 20 shl $0x20,%r15
8: 49 09 c7 or %rax,%r15
b: 4d 29 f7 sub %r14,%r15
e: 49 39 df cmp %rbx,%r15
11: 73 53 jae 0x66
13: bf 01 00 00 00 mov $0x1,%edi
18: e8 46 6c 51 fd call 0xfd516c63
1d: 65 8b 05 e7 6b 02 7c mov %gs:0x7c026be7(%rip),%eax # 0x7c026c0b
24: 85 c0 test %eax,%eax
26: 74 1c je 0x44
28: f3 90 pause
* 2a: bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction
2f: e8 9f 6a 51 fd call 0xfd516ad3
34: e8 8a 39 a8 05 call 0x5a839c3
39: 39 c5 cmp %eax,%ebp
3b: 75 0e jne 0x4b
3d: 0f 01 f9 rdtscp