------------[ cut here ]------------
WARNING: CPU: 1 PID: 4800 at kernel/kcov.c:870 kcov_remote_start+0x274/0x6e0 kernel/kcov.c:870
Modules linked in:
CPU: 1 PID: 4800 Comm: kworker/1:3 Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:kcov_remote_start+0x274/0x6e0 kernel/kcov.c:870
Code: c0 22 49 89 47 08 e9 87 00 00 00 f6 c4 01 0f 85 06 fe ff ff e9 dc fd ff ff 44 8b 95 54 15 00 00 45 85 d2 0f 84 d5 fe ff ff 90 <0f> 0b 90 e9 b9 00 00 00 65 8b 05 55 72 b0 7e 49 c7 c0 2e e4 04 88
RSP: 0018:ffffc900001b8550 EFLAGS: 00010002
RAX: 0000000000010101 RBX: 000000000002d428 RCX: ffffffff813080be
RDX: 0000000000000002 RSI: ffffffff86c7d9a0 RDI: ffffffff86e78600
RBP: ffff88811f241d00 R08: 0000000000000000 R09: fffffbfff19989a6
R10: 0000000000000001 R11: 0000000000000007 R12: ffff8881f652d428
R13: 0000000000000000 R14: 0100000000000005 R15: ffff88811f241d00
FS: 0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558c2f82af28 CR3: 00000001163d4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kcov_remote_start_usb include/linux/kcov.h:53 [inline]
kcov_remote_start_usb_softirq include/linux/kcov.h:66 [inline]
__usb_hcd_giveback_urb+0x331/0x5c0 drivers/usb/core/hcd.c:1647
usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1732
dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1687 [inline]
__hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:queue_work_on+0x98/0x140 kernel/workqueue.c:2415
Code: e8 3d a7 31 00 48 85 ed 75 44 e8 03 ac 31 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 21 a7 31 00 48 85 db 0f 85 8d 00 00 00 e3 ab 31 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc e8
RSP: 0018:ffffc900001b8ac8 EFLAGS: 00000283
RAX: 0000000000000a4f RBX: 0000000000000000 RCX: ffffc90001203000
RDX: 0000000000040000 RSI: ffffffff812197b2 RDI: 0000000000000007
RBP: 0000000000000200 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000000000a R12: 0000000000000001
R13: 0000000000000008 R14: ffff8881052c4c00 R15: 0000000000000002
queue_work include/linux/workqueue.h:621 [inline]
kick_hub_wq drivers/usb/core/hub.c:724 [inline]
kick_hub_wq+0x145/0x2a0 drivers/usb/core/hub.c:705
hub_irq+0x322/0x440 drivers/usb/core/hub.c:804
__usb_hcd_giveback_urb+0x364/0x5c0 drivers/usb/core/hcd.c:1648
usb_giveback_urb_bh+0x28f/0x570 drivers/usb/core/hcd.c:1682
process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
bh_worker+0x5a4/0x8a0 kernel/workqueue.c:3572
workqueue_softirq_action+0x12c/0x190 kernel/workqueue.c:3599
tasklet_hi_action+0x17/0x70 kernel/softirq.c:816
handle_softirqs+0x209/0x8e0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xac/0x110 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 48 8b 15 64 82 b0 7e 65 8b 05 65 82 b0 7e a9 00 01
RSP: 0018:ffffc9000ab2f1b8 EFLAGS: 00000202
RAX: 0000000000000002 RBX: ffffc9000ab2f240 RCX: ffffffff81153c4d
RDX: ffff88811f241d00 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000002 R11: 0000000000000005 R12: ffffffff8a4dd350
R13: ffffffff8a4dd355 R14: 0000000000000002 R15: ffffc9000ab2f275
unwind_next_frame+0x61c/0x23a0 arch/x86/kernel/unwind_orc.c:512
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
poison_slab_object+0xf7/0x160 mm/kasan/common.c:240
__kasan_slab_free+0x14/0x30 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2195 [inline]
slab_free mm/slub.c:4436 [inline]
kfree+0x10b/0x380 mm/slub.c:4557
rh_call_control drivers/usb/core/hcd.c:705 [inline]
rh_urb_enqueue drivers/usb/core/hcd.c:821 [inline]
usb_hcd_submit_urb+0xbf0/0x2090 drivers/usb/core/hcd.c:1529
usb_submit_urb+0x87c/0x1730 drivers/usb/core/urb.c:581
usb_start_wait_urb+0x103/0x4c0 drivers/usb/core/message.c:59
usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
usb_control_msg+0x327/0x4b0 drivers/usb/core/message.c:154
get_port_status drivers/usb/core/hub.c:604 [inline]
hub_ext_port_status+0x14e/0x670 drivers/usb/core/hub.c:621
usb_hub_port_status drivers/usb/core/hub.c:671 [inline]
port_event drivers/usb/core/hub.c:5714 [inline]
hub_event+0x6e5/0x4f50 drivers/usb/core/hub.c:5903
process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
----------------
Code disassembly (best guess):
0: e8 3d a7 31 00 call 0x31a742
5: 48 85 ed test %rbp,%rbp
8: 75 44 jne 0x4e
a: e8 03 ac 31 00 call 0x31ac12
f: 9c pushf
10: 5b pop %rbx
11: 81 e3 00 02 00 00 and $0x200,%ebx
17: 31 ff xor %edi,%edi
19: 48 89 de mov %rbx,%rsi
1c: e8 21 a7 31 00 call 0x31a742
21: 48 85 db test %rbx,%rbx
24: 0f 85 8d 00 00 00 jne 0xb7
* 2a: e8 e3 ab 31 00 call 0x31ac12 <-- trapping instruction
2f: 44 89 e0 mov %r12d,%eax
32: 5b pop %rbx
33: 5d pop %rbp
34: 41 5c pop %r12
36: 41 5d pop %r13
38: 41 5e pop %r14
3a: c3 ret
3b: cc int3
3c: cc int3
3d: cc int3
3e: cc int3
3f: e8 .byte 0xe8