RAX: 0000000000000000 RBX: 00007f4ab0fe5fa0 RCX: 00007f4ab0d8f749 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000000 RBP: 00007f4ab1ceb090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f4ab0fe6038 R14: 00007f4ab0fe5fa0 R15: 00007ffdc394df08 CFI failure at __traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 (target: tp_stub_func+0x0/0x10; expected type: 0xee1f7a69) invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12526 Comm: syz.8.3517 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 Code: 80 3c 30 00 74 05 e8 74 85 69 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 41 ba 97 85 e0 11 45 03 57 fc 74 02 <0f> 0b 41 ff d7 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 RSP: 0018:ffffc90001467490 EFLAGS: 00010096 RAX: 1ffff110212228a9 RBX: ffff888109114540 RCX: ffff88810fcaa880 RDX: ffff88811e869440 RSI: 0000000000000001 RDI: ffffc90001495000 RBP: ffffc900014674d0 R08: 0000000000000000 R09: fffffbfff0ee4eee R10: 00000000b720eca3 R11: 1ffffffff0ee4eed R12: 0000000000000001 R13: ffff888109114540 R14: dffffc0000000000 R15: ffffffff817144c0 FS: 00007f4ab1ceb6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3aca6341d9 CR3: 000000013da74000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x1263/0x14e0 kernel/sched/core.c:6747 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:unwind_next_frame+0x5b7/0x700 arch/x86/kernel/unwind_frame.c:370 Code: 00 48 ba 00 00 00 00 00 fc ff df 48 8b 45 90 0f b6 04 10 84 c0 0f 85 b8 00 00 00 c7 03 00 00 00 00 31 c0 48 83 c4 48 5b 41 5c <41> 5d 41 5e 41 5f 5d c3 c6 05 7a 1d 3a 06 01 48 b8 00 00 00 00 00 RSP: 0018:ffffc90001467780 EFLAGS: 00000292 RAX: 0000000001467701 RBX: ffffc90001467860 RCX: 0000000001467701 RDX: ffffc90001467bc0 RSI: 1ffff9200028cef6 RDI: ffffc90001467800 RBP: ffffc90001467798 R08: ffffc90001467870 R09: ffffc90001467868 R10: 0000000000000004 R11: 1ffff9200028cef5 R12: ffff88811e869440 R13: 1ffff9200028cf00 R14: ffffc90001467800 R15: ffffc90001467b68 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: 0033:0x7f4ab0d8f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4ab1ceb038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f4ab0fe5fa0 RCX: 00007f4ab0d8f749 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000000 RBP: 00007f4ab1ceb090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f4ab0fe6038 R14: 00007f4ab0fe5fa0 R15: 00007ffdc394df08 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 Code: 80 3c 30 00 74 05 e8 74 85 69 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 41 ba 97 85 e0 11 45 03 57 fc 74 02 <0f> 0b 41 ff d7 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 RSP: 0018:ffffc90001467490 EFLAGS: 00010096 RAX: 1ffff110212228a9 RBX: ffff888109114540 RCX: ffff88810fcaa880 RDX: ffff88811e869440 RSI: 0000000000000001 RDI: ffffc90001495000 RBP: ffffc900014674d0 R08: 0000000000000000 R09: fffffbfff0ee4eee R10: 00000000b720eca3 R11: 1ffffffff0ee4eed R12: 0000000000000001 R13: ffff888109114540 R14: dffffc0000000000 R15: ffffffff817144c0 FS: 00007f4ab1ceb6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3aca6341d9 CR3: 000000013da74000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 7: fc ff df a: 48 8b 45 90 mov -0x70(%rbp),%rax e: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax 12: 84 c0 test %al,%al 14: 0f 85 b8 00 00 00 jne 0xd2 1a: c7 03 00 00 00 00 movl $0x0,(%rbx) 20: 31 c0 xor %eax,%eax 22: 48 83 c4 48 add $0x48,%rsp 26: 5b pop %rbx 27: 41 5c pop %r12 * 29: 41 5d pop %r13 <-- trapping instruction 2b: 41 5e pop %r14 2d: 41 5f pop %r15 2f: 5d pop %rbp 30: c3 ret 31: c6 05 7a 1d 3a 06 01 movb $0x1,0x63a1d7a(%rip) # 0x63a1db2 38: 48 rex.W 39: b8 00 00 00 00 mov $0x0,%eax