RBP: 00007f65d4336090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f65d37b6160 R15: 00007ffe676fa718 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: 1 PID: 15545 Comm: syz.3.4345 Not tainted 6.1.141-syzkaller-00038-ge2deb0b42a3a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 Code: 80 3c 30 00 74 05 e8 04 57 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:ffffc900032ef930 EFLAGS: 00010096 RAX: 1ffff1102636aa8c RBX: ffff888131b55458 RCX: ffff888114bd8000 RDX: ffff888118082880 RSI: 0000000000000001 RDI: ffffc900032e5000 RBP: ffffc900032ef970 R08: 0000000000000000 R09: 0000000000000004 R10: 00000000b720eca3 R11: 0000000000000000 R12: 0000000000000001 R13: ffff888131b55458 R14: dffffc0000000000 R15: ffffffff817113c0 FS: 00007f65d43366c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000138c00000 CR4: 00000000003506a0 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:_compound_head include/linux/page-flags.h:261 [inline] RIP: 0010:virt_to_folio include/linux/mm.h:1164 [inline] RIP: 0010:kfree+0x53/0xf0 mm/slab_common.c:982 Code: bf 00 00 00 80 7f 77 00 00 48 01 df 48 81 ef 00 00 00 80 48 c1 ef 06 48 83 e7 c0 48 b9 00 00 00 00 00 ea ff ff 48 8b 44 0f 08 01 75 1d 48 01 cf 48 f7 07 00 02 00 00 74 20 48 8b 7f 18 48 89 RSP: 0018:ffffc900032efc28 EFLAGS: 00000202 RAX: ffffea0004453700 RBX: ffff88811613d400 RCX: ffffea0000000000 RDX: ffffffff8180ec45 RSI: 0000000000000000 RDI: 0000000004584f40 RBP: ffffc900032efc38 R08: dffffc0000000000 R09: ffffed102263a001 R10: 0000000000000000 R11: ffffffff8180ec30 R12: 1ffff11022c27a83 R13: dffffc0000000000 R14: ffffffff858c56e8 R15: 1ffff9200065df90 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+0x5a/0xa0 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: 0033:0x7f65d358e929 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:00007f65d4336038 EFLAGS: 00000246 ORIG_RAX: 0000000000000124 RAX: 0000000000000007 RBX: 00007f65d37b6160 RCX: 00007f65d358e929 RDX: 0000000000080000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007f65d4336090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f65d37b6160 R15: 00007ffe676fa718 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 04 57 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:ffffc900032ef930 EFLAGS: 00010096 RAX: 1ffff1102636aa8c RBX: ffff888131b55458 RCX: ffff888114bd8000 RDX: ffff888118082880 RSI: 0000000000000001 RDI: ffffc900032e5000 RBP: ffffc900032ef970 R08: 0000000000000000 R09: 0000000000000004 R10: 00000000b720eca3 R11: 0000000000000000 R12: 0000000000000001 R13: ffff888131b55458 R14: dffffc0000000000 R15: ffffffff817113c0 FS: 00007f65d43366c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000138c00000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: bf 00 00 00 80 mov $0x80000000,%edi 5: 7f 77 jg 0x7e 7: 00 00 add %al,(%rax) 9: 48 01 df add %rbx,%rdi c: 48 81 ef 00 00 00 80 sub $0xffffffff80000000,%rdi 13: 48 c1 ef 06 shr $0x6,%rdi 17: 48 83 e7 c0 and $0xffffffffffffffc0,%rdi 1b: 48 b9 00 00 00 00 00 movabs $0xffffea0000000000,%rcx 22: ea ff ff 25: 48 8b 44 0f 08 mov 0x8(%rdi,%rcx,1),%rax * 2a: a8 01 test $0x1,%al <-- trapping instruction 2c: 75 1d jne 0x4b 2e: 48 01 cf add %rcx,%rdi 31: 48 f7 07 00 02 00 00 testq $0x200,(%rdi) 38: 74 20 je 0x5a 3a: 48 8b 7f 18 mov 0x18(%rdi),%rdi 3e: 48 rex.W 3f: 89 .byte 0x89