RBP: 00007f98d0a45090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f98cfde6038 R14: 00007f98cfde5fa0 R15: 00007ffff2976428 CFI failure at __traceiter_tlb_flush+0x80/0xd0 include/trace/events/tlb.h:38 (target: tp_stub_func+0x0/0x10; expected type: 0x205553a5) invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3482 Comm: syz.1.862 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__traceiter_tlb_flush+0x80/0xd0 include/trace/events/tlb.h:38 Code: 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 28 62 07 00 49 8b 7c 24 08 44 89 f6 48 8b 55 d0 41 ba 5b ac aa df 44 03 53 fc 74 02 <0f> 0b ff d3 49 83 c7 18 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 RSP: 0018:ffffc90000c273e8 EFLAGS: 00010093 RAX: 1ffff11022b8e1a3 RBX: ffffffff81713fc0 RCX: ffff8881189c5100 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: ffffc900006e5000 RBP: ffffc90000c27418 R08: dffffc0000000000 R09: fffffbfff0ee4e9e R10: 0000000084eb1367 R11: 1ffffffff0ee4e9d R12: ffff888115c70d10 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888115c70d10 FS: 00007f98d0a456c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4696a55bde CR3: 000000012e5d2000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_tlb_flush include/trace/events/tlb.h:38 [inline] switch_mm_irqs_off+0x61f/0x980 arch/x86/mm/tlb.c:634 context_switch kernel/sched/core.c:5405 [inline] __schedule+0x9eb/0x14e0 kernel/sched/core.c:6750 preempt_schedule_irq+0x9b/0x110 kernel/sched/core.c:7062 raw_irqentry_exit_cond_resched+0x29/0x30 kernel/entry/common.c:396 irqentry_exit+0x37/0x40 kernel/entry/common.c:439 sysvec_reschedule_ipi+0x78/0x80 arch/x86/kernel/smp.c:244 asm_sysvec_reschedule_ipi+0x1b/0x20 arch/x86/include/asm/idtentry.h:696 RIP: 0010:task_stack_page include/linux/sched/task_stack.h:22 [inline] RIP: 0010:last_frame arch/x86/kernel/unwind_frame.c:82 [inline] RIP: 0010:is_last_frame arch/x86/kernel/unwind_frame.c:87 [inline] RIP: 0010:is_last_task_frame arch/x86/kernel/unwind_frame.c:156 [inline] RIP: 0010:unwind_next_frame+0x115/0x700 arch/x86/kernel/unwind_frame.c:276 Code: f7 e8 df 7b 7f 00 48 ba 00 00 00 00 00 fc ff df 4c 89 75 98 49 8b 06 48 89 45 a8 4c 8d 68 20 4c 89 e8 48 c1 e8 03 80 3c 10 00 <74> 12 4c 89 ef e8 b1 7b 7f 00 48 ba 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffffc90000c27728 EFLAGS: 00000246 RAX: 1ffff11023138a24 RBX: ffffc90000c277a8 RCX: 0000000000c27700 RDX: dffffc0000000000 RSI: ffffffff8148e31b RDI: ffffc90000c277a8 RBP: ffffc90000c27798 R08: ffffc90000c27870 R09: ffffc90000c27868 R10: 000000000000000c R11: 1ffff92000184ef5 R12: 0000000000000000 R13: ffff8881189c5120 R14: ffffc90000c277d0 R15: ffffc90000c27df0 arch_stack_walk+0x124/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x31/0x50 mm/kasan/generic.c:516 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:241 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249 kasan_slab_free include/linux/kasan.h:178 [inline] slab_free_hook mm/slub.c:1750 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776 slab_free mm/slub.c:3712 [inline] __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728 kfree+0x6f/0xf0 mm/slab_common.c:990 bpf_raw_tp_link_dealloc+0x15/0x20 kernel/bpf/syscall.c:3179 bpf_link_free+0x321/0x390 kernel/bpf/syscall.c:2743 bpf_link_put kernel/bpf/syscall.c:2765 [inline] bpf_link_release+0x15f/0x170 kernel/bpf/syscall.c:2774 __fput+0x1fc/0x8f0 fs/file_table.c:320 ____fput+0x15/0x20 fs/file_table.c:348 task_work_run+0x1db/0x240 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f98cfb8f749 Code: Unable to access opcode bytes at 0x7f98cfb8f71f. RSP: 002b:00007f98d0a45038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007f98cfde5fa0 RCX: 00007f98cfb8f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f98d0a45090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f98cfde6038 R14: 00007f98cfde5fa0 R15: 00007ffff2976428 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__traceiter_tlb_flush+0x80/0xd0 include/trace/events/tlb.h:38 Code: 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 28 62 07 00 49 8b 7c 24 08 44 89 f6 48 8b 55 d0 41 ba 5b ac aa df 44 03 53 fc 74 02 <0f> 0b ff d3 49 83 c7 18 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 RSP: 0018:ffffc90000c273e8 EFLAGS: 00010093 RAX: 1ffff11022b8e1a3 RBX: ffffffff81713fc0 RCX: ffff8881189c5100 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: ffffc900006e5000 RBP: ffffc90000c27418 R08: dffffc0000000000 R09: fffffbfff0ee4e9e R10: 0000000084eb1367 R11: 1ffffffff0ee4e9d R12: ffff888115c70d10 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888115c70d10 FS: 00007f98d0a456c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4696a55bde CR3: 000000012e5d2000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e8 df 7b 7f 00 call 0x7f7be4 5: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx c: fc ff df f: 4c 89 75 98 mov %r14,-0x68(%rbp) 13: 49 8b 06 mov (%r14),%rax 16: 48 89 45 a8 mov %rax,-0x58(%rbp) 1a: 4c 8d 68 20 lea 0x20(%rax),%r13 1e: 4c 89 e8 mov %r13,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) * 29: 74 12 je 0x3d <-- trapping instruction 2b: 4c 89 ef mov %r13,%rdi 2e: e8 b1 7b 7f 00 call 0x7f7be4 33: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 3a: fc ff df 3d: 49 rex.WB 3e: 8b .byte 0x8b