CFI failure at __traceiter_timer_start+0x87/0xe0 include/trace/events/timer.h:53 (target: tp_stub_func+0x0/0x10; expected type: 0x82fbfa63)
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 313 Comm: kworker/u4:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__traceiter_timer_start+0x87/0xe0 include/trace/events/timer.h:53
Code: f8 48 c1 e8 03 80 3c 18 00 74 05 e8 a3 67 53 00 49 8b 7d 08 4c 89 fe 48 8b 55 c8 8b 4d d4 41 ba 9d 05 04 7d 45 03 56 fc 74 02 <0f> 0b 41 ff d6 49 83 c4 18 4c 89 e0 48 c1 e8 03 80 3c 18 00 74 08
RSP: 0018:ffffc90001397990 EFLAGS: 00010017
RAX: 1ffff110239bb933 RBX: dffffc0000000000 RCX: 0000000003600001
RDX: 00000000ffff9fcc RSI: ffffffff879c3470 RDI: ffffc90000225000
RBP: ffffc900013979c8 R08: dffffc0000000000 R09: fffffbfff0ee4ef6
R10: 0000000022446ca9 R11: 1ffffffff0ee4ef5 R12: ffff88811cddc990
R13: ffff88811cddc990 R14: ffffffff817146d0 R15: ffffffff879c3470
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000006e0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 trace_timer_start include/trace/events/timer.h:53 [inline]
 enqueue_timer+0x337/0x480 kernel/time/timer.c:615
 __mod_timer+0x84a/0xbf0 kernel/time/timer.c:-1
 add_timer+0x68/0x80 kernel/time/timer.c:1250
 __queue_delayed_work+0x173/0x200 kernel/workqueue.c:1686
 queue_delayed_work_on+0xdb/0x150 kernel/workqueue.c:1711
 queue_delayed_work include/linux/workqueue.h:525 [inline]
 toggle_allocation_gate+0x3aa/0x400 mm/kfence/core.c:821
 process_one_work+0x71f/0xc40 kernel/workqueue.c:2302
 worker_thread+0xa29/0x11f0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_timer_start+0x87/0xe0 include/trace/events/timer.h:53
Code: f8 48 c1 e8 03 80 3c 18 00 74 05 e8 a3 67 53 00 49 8b 7d 08 4c 89 fe 48 8b 55 c8 8b 4d d4 41 ba 9d 05 04 7d 45 03 56 fc 74 02 <0f> 0b 41 ff d6 49 83 c4 18 4c 89 e0 48 c1 e8 03 80 3c 18 00 74 08
RSP: 0018:ffffc90001397990 EFLAGS: 00010017

RAX: 1ffff110239bb933 RBX: dffffc0000000000 RCX: 0000000003600001
RDX: 00000000ffff9fcc RSI: ffffffff879c3470 RDI: ffffc90000225000
RBP: ffffc900013979c8 R08: dffffc0000000000 R09: fffffbfff0ee4ef6
R10: 0000000022446ca9 R11: 1ffffffff0ee4ef5 R12: ffff88811cddc990
R13: ffff88811cddc990 R14: ffffffff817146d0 R15: ffffffff879c3470
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000006e0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400