CFI failure at __traceiter_bpf_trace_printk+0x75/0xc0 kernel/trace/bpf_trace.h:11 (target: tp_stub_func+0x0/0x10; expected type: 0xf18bd0c0) invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 910 Comm: syz.0.202 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:__traceiter_bpf_trace_printk+0x75/0xc0 kernel/trace/bpf_trace.h:11 Code: 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 fe 0c 3a 00 49 8b 7f 08 48 89 de 41 ba 40 2f 74 0e 45 03 55 fc 74 02 <0f> 0b 41 ff d5 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 RSP: 0000:ffffc9000ee7f748 EFLAGS: 00010082 RAX: 1ffff110272035e6 RBX: ffff8881f6f334c0 RCX: ffff888139335100 RDX: 0000000000010000 RSI: ffff8881f6f334c0 RDI: ffffffff871ffba0 RBP: ffffc9000ee7f770 R08: ffff8881001760b7 R09: 1ffff1102002ec16 R10: 00000000b3b4964c R11: ffffed102002ec17 R12: dffffc0000000000 R13: ffffffff81729be0 R14: ffff88813901af28 R15: ffff88813901af28 FS: 00007f63cf7b66c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ed20ff8 CR3: 000000013b865000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: trace_bpf_trace_printk kernel/trace/bpf_trace.h:11 [inline] ____bpf_trace_printk kernel/trace/bpf_trace.c:391 [inline] bpf_trace_printk+0x231/0x280 kernel/trace/bpf_trace.c:374 bpf_prog_ab10edc23ce44ec6+0x35/0x37 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:607 [inline] bpf_prog_run include/linux/filter.h:614 [inline] bpf_overflow_handler+0x3d0/0x5e0 kernel/events/core.c:10273 __perf_event_overflow+0x437/0x620 kernel/events/core.c:9448 perf_event_overflow kernel/events/core.c:9469 [inline] perf_swevent_hrtimer+0x400/0x5b0 kernel/events/core.c:10919 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x3bb/0x8e0 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x3c7/0x8c0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x11e/0x440 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x53/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0033:0x7f63ce99ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f63cf7b6028 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f63cec15fa0 RCX: 00007f63ce99ce59 RDX: 0000000000000003 RSI: 0000000040042408 RDI: 0000000000000004 RBP: 00007f63cea32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f63cec16038 R14: 00007f63cec15fa0 R15: 00007ffce4ed9748 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__traceiter_bpf_trace_printk+0x75/0xc0 kernel/trace/bpf_trace.h:11 Code: 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 fe 0c 3a 00 49 8b 7f 08 48 89 de 41 ba 40 2f 74 0e 45 03 55 fc 74 02 <0f> 0b 41 ff d5 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 RSP: 0000:ffffc9000ee7f748 EFLAGS: 00010082 RAX: 1ffff110272035e6 RBX: ffff8881f6f334c0 RCX: ffff888139335100 RDX: 0000000000010000 RSI: ffff8881f6f334c0 RDI: ffffffff871ffba0 RBP: ffffc9000ee7f770 R08: ffff8881001760b7 R09: 1ffff1102002ec16 R10: 00000000b3b4964c R11: ffffed102002ec17 R12: dffffc0000000000 R13: ffffffff81729be0 R14: ffff88813901af28 R15: ffff88813901af28 FS: 00007f63cf7b66c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ed20ff8 CR3: 000000013b865000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600