syzbot
invalid opcode in __traceiter_sched_wakeup_new
Status:
premoderation: reported on 2026/08/19 20:59
Reported-by: syzbot+3cdcaaba7e6068e95cae@syzkaller.appspotmail.com
First crash: 9d05h, last: 9d05h
Sample crash report:
CFI failure at __traceiter_sched_wakeup_new+0x88/0xc0 include/trace/events/sched.h:185 (target: tp_stub_func+0x0/0x20; expected type: 0x9429e0fb)
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 1002 Comm: syz.2.229 Not tainted syzkaller #0 03d350d479d1c05c2ac57b56e0973d7fc75f4bbd
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__traceiter_sched_wakeup_new+0x88/0xc0 include/trace/events/sched.h:185
Code: 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 6f 1b 86 00 49 8b 7c 24 08 48 89 de 4d 89 fb 41 ba 05 1f d6 6b 45 03 53 f1 74 02 <0f> 0b 41 ff d3 0f 1f 00 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc9000f9dfb20 EFLAGS: 00010002
RAX: 1ffff110212cbad6 RBX: ffff8881174ba600 RCX: ffff88811771cc00
RDX: 0000000000000000 RSI: ffff8881174ba600 RDI: ffff888101279600
RBP: ffffc9000f9dfb48 R08: 0000000000000010 R09: 0000000000000004
R10: 000000007e4f9d68 R11: ffffffff8188bff0 R12: ffff88810965d6a8
R13: dffffc0000000000 R14: ffff88810965d6a8 R15: ffffffff8188bff0
FS: 000055558f602500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f27558e6d58 CR3: 000000011d1aa000 CR4: 00000000003526b0
Call Trace:
<TASK>
trace_sched_wakeup_new include/trace/events/sched.h:185 [inline]
wake_up_new_task+0x971/0xa10 kernel/sched/core.c:5520
kernel_clone+0x402/0x810 kernel/fork.c:2884
__do_sys_clone3 kernel/fork.c:3157 [inline]
__se_sys_clone3+0x33e/0x360 kernel/fork.c:3136
__x64_sys_clone3+0x5f/0x80 kernel/fork.c:3136
x64_sys_call+0x28fc/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:436
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f275499eec9
Code: 90 b8 01 00 00 00 b9 01 00 00 00 eb ec 0f 1f 40 00 b8 ea ff ff ff 48 85 ff 74 28 48 85 d2 74 23 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 14 74 01 c3 31 ed 4c 89 c7 ff d2 48 89 c7 b8 3c 00 00
RSP: 002b:00007ffc6961a8a8 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f275495a460 RCX: 00007f275499eec9
RDX: 00007f275495a460 RSI: 0000000000000058 RDI: 00007ffc6961a900
RBP: 00007f27558e66c0 R08: 00007f27558e66c0 R09: 00007ffc6961a9e7
R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffffe8
R13: 000000000000006e R14: 00007ffc6961a900 R15: 00007ffc6961a9e8
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_sched_wakeup_new+0x88/0xc0 include/trace/events/sched.h:185
Code: 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 6f 1b 86 00 49 8b 7c 24 08 48 89 de 4d 89 fb 41 ba 05 1f d6 6b 45 03 53 f1 74 02 <0f> 0b 41 ff d3 0f 1f 00 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc9000f9dfb20 EFLAGS: 00010002
RAX: 1ffff110212cbad6 RBX: ffff8881174ba600 RCX: ffff88811771cc00
RDX: 0000000000000000 RSI: ffff8881174ba600 RDI: ffff888101279600
RBP: ffffc9000f9dfb48 R08: 0000000000000010 R09: 0000000000000004
R10: 000000007e4f9d68 R11: ffffffff8188bff0 R12: ffff88810965d6a8
R13: dffffc0000000000 R14: ffff88810965d6a8 R15: ffffffff8188bff0
FS: 000055558f602500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f27558e6d58 CR3: 000000011d1aa000 CR4: 00000000003526b0
* Struck through repros no longer work on HEAD.