CFI failure at __traceiter_sched_wakeup+0x7d/0xb0 include/trace/events/sched.h:178 (target: tp_stub_func+0x0/0x10; expected type: 0x389e96a6)
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__traceiter_sched_wakeup+0x7d/0xb0 include/trace/events/sched.h:178
Code: 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 e6 fb 6a 00 49 8b 7f 08 48 89 de 41 ba 5a 69 61 c7 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: 0018:ffffc90000007bd8 EFLAGS: 00010817
RAX: 1ffff110245429b6 RBX: ffff88810ee42880 RCX: ffffffff8701c680
RDX: 0000000000010000 RSI: ffff88810ee42880 RDI: ffffffff87104140
RBP: ffffc90000007c00 R08: ffffffff8792ddef R09: 1ffffffff0f25bbd
R10: 000000006ca1d066 R11: fffffbfff0f25bbe R12: dffffc0000000000
R13: ffffffff817296e0 R14: ffff888122a14da8 R15: ffff888122a14da8
FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6298c72140 CR3: 0000000109618000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
trace_sched_wakeup include/trace/events/sched.h:178 [inline]
ttwu_do_wakeup+0x468/0x490 kernel/sched/core.c:3782
ttwu_do_activate+0x174/0x280 kernel/sched/core.c:3837
ttwu_queue kernel/sched/core.c:4063 [inline]
try_to_wake_up+0x5c0/0x1220 kernel/sched/core.c:4392
wake_up_process+0x10/0x20 kernel/sched/core.c:4528
hrtimer_wakeup+0x4e/0x60 kernel/time/hrtimer.c:1939
__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+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:742
Code: 27 79 b5 fc e9 3d ff ff ff 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d f3 a6 64 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffffff87007d58 EFLAGS: 00000257
RAX: ffff8881f6e00000 RBX: ffffffff8701c680 RCX: 775e6d09c2bbd400
RDX: 0000000000000001 RSI: ffffffff85ca8b00 RDI: ffffffff85ca8ac0
RBP: ffffffff87007d58 R08: ffff8881f6e348b3 R09: 1ffff1103edc6916
R10: 0000000000000000 R11: ffffffff85018c00 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8701c680 R15: dffffc0000000000
arch_cpu_idle+0x1c/0x20 arch/x86/kernel/process.c:733
default_idle_call+0x71/0x1d0 kernel/sched/idle.c:109
cpuidle_idle_call kernel/sched/idle.c:191 [inline]
do_idle+0x1a7/0x560 kernel/sched/idle.c:303
cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:401
rest_init+0x10a/0x130 init/main.c:744
arch_call_rest_init+0xe/0x10 init/main.c:904
start_kernel+0x483/0x4f1 init/main.c:1275
x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:555
x86_64_start_kernel+0x7c/0x81 arch/x86/kernel/head64.c:536
secondary_startup_64_no_verify+0xce/0xdb
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_sched_wakeup+0x7d/0xb0 include/trace/events/sched.h:178
Code: 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 e6 fb 6a 00 49 8b 7f 08 48 89 de 41 ba 5a 69 61 c7 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: 0018:ffffc90000007bd8 EFLAGS: 00010817
RAX: 1ffff110245429b6 RBX: ffff88810ee42880 RCX: ffffffff8701c680
RDX: 0000000000010000 RSI: ffff88810ee42880 RDI: ffffffff87104140
RBP: ffffc90000007c00 R08: ffffffff8792ddef R09: 1ffffffff0f25bbd
R10: 000000006ca1d066 R11: fffffbfff0f25bbe R12: dffffc0000000000
R13: ffffffff817296e0 R14: ffff888122a14da8 R15: ffff888122a14da8
FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6298c72140 CR3: 0000000109618000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 79 b5 jns 0xffffffb7
2: fc cld
3: e9 3d ff ff ff jmp 0xffffff45
8: 00 00 add %al,(%rax)
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: b8 0c 67 40 a5 mov $0xa540670c,%eax
1a: 55 push %rbp
1b: 48 89 e5 mov %rsp,%rbp
1e: 66 90 xchg %ax,%ax
20: 0f 00 2d f3 a6 64 00 verw 0x64a6f3(%rip) # 0x64a71a
27: fb sti
28: f4 hlt
* 29: 5d pop %rbp <-- trapping instruction
2a: c3 ret
2b: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
32: 00 00 00
35: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop