------------[ cut here ]------------
WARNING: CPU: 0 PID: 4292 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4292 Comm: kworker/0:18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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 8d f6 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 10 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:ffffc90000007c18 EFLAGS: 00010006
RAX: ffffffff819ed900 RBX: 0000000000000008 RCX: ffff8880287e1dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10050fc3b9
R10: ffffed10050fc3b9 R11: 1ffff110050fc3b8 R12: ffff8880287e3548
R13: 00007ffffffff000 R14: ffffc90000007c88 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 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_1ccb8ba97563bf77+0x59/0xd14
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
__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:queue_delayed_work_on+0x18c/0x1e0 kernel/workqueue.c:1720
Code: 4d 85 ed 75 16 e8 64 b0 2a 00 eb 15 e8 5d b0 2a 00 e8 28 52 5c 08 4d 85 ed 74 ea e8 4e b0 2a 00 fb 48 c7 44 24 20 0e 36 e0 45 <48> b8 00 00 00 00 00 fc ff df 49 c7 04 06 00 00 00 00 66 41 c7 44
RSP: 0018:ffffc900032bfb60 EFLAGS: 00000293
RAX: ffffffff814d1bc2 RBX: 0000000000000000 RCX: ffff8880287e1dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900032bfc30 R08: dffffc0000000000 R09: fffffbfff1ff7c1b
R10: fffffbfff1ff7c1b R11: 1ffffffff1ff7c1a R12: dffffc0000000001
R13: 0000000000000200 R14: 1ffff92000657f70 R15: 0000000000000000
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: 4d 85 ed test %r13,%r13
3: 75 16 jne 0x1b
5: e8 64 b0 2a 00 call 0x2ab06e
a: eb 15 jmp 0x21
c: e8 5d b0 2a 00 call 0x2ab06e
11: e8 28 52 5c 08 call 0x85c523e
16: 4d 85 ed test %r13,%r13
19: 74 ea je 0x5
1b: e8 4e b0 2a 00 call 0x2ab06e
20: fb sti
21: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp)
28: e0 45
* 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction
31: fc ff df
34: 49 c7 04 06 00 00 00 movq $0x0,(%r14,%rax,1)
3b: 00
3c: 66 data16
3d: 41 rex.B
3e: c7 .byte 0xc7
3f: 44 rex.R