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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: drivers/usb/gadget/udc/core.c:125 at usb_ep_enable+0x148/0x480 drivers/usb/gadget/udc/core.c:124, CPU#0: kworker/u8:13/1530
Modules linked in:
CPU: 0 UID: 0 PID: 1530 Comm: kworker/u8:13 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: bat_events batadv_mcast_mla_update
RIP: 0010:usb_ep_enable+0x1bc/0x480 drivers/usb/gadget/udc/core.c:124
Code: fa a4 6f fa 49 83 3f 00 48 c7 c0 00 70 d3 8c 49 c7 c0 20 70 d3 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 00 01 6c 8e 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 60 57 fe f9 65 8b
RSP: 0018:ffffc90000007910 EFLAGS: 00010082
RAX: ffffffff8cd37000 RBX: ffff8880253a40e0 RCX: ffffffff8cd38e20
RDX: 0000000000000081 RSI: ffffffff8e6c0100 RDI: ffffffff90881080
RBP: dffffc0000000000 R08: ffffffff8cd37020 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: ffffffff8cd38e20
R13: 0000000000000081 R14: ffffffff90881080 R15: ffff8880253a40f8
FS: 0000000000000000(0000) GS:ffff888124caf000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0b8e7556c8 CR3: 000000007a436000 CR4: 00000000003526f0
Call Trace:
hidg_set_alt+0x12a/0xa60 drivers/usb/gadget/function/f_hid.c:1042
set_config+0x749/0x1160 drivers/usb/gadget/composite.c:1018
composite_setup+0x1de7/0x3480 drivers/usb/gadget/composite.c:1901
configfs_composite_setup+0xc7/0x100 drivers/usb/gadget/configfs.c:1877
dummy_timer+0x2f43/0x4cf0 drivers/usb/gadget/udc/dummy_hcd.c:1951
__run_hrtimer kernel/time/hrtimer.c:2075 [inline]
__hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2132
hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2149
handle_softirqs+0x223/0x840 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:queue_delayed_work_on+0x17a/0x1e0 kernel/workqueue.c:2772
Code: 00 4d 85 f6 75 16 e8 b5 f0 39 00 eb 15 e8 ae f0 39 00 e8 e9 f2 5b 0a 4d 85 f6 74 ea e8 9f f0 39 00 fb 65 48 8b 05 0e 1e 08 12 <48> 3b 44 24 20 75 56 89 d8 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90006717880 EFLAGS: 00000293
RAX: 68f097a4e68d1300 RBX: ffff88807d9b9801 RCX: ffff8880294f5dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000008 R08: ffffffff907a1fbf R09: 1ffffffff20f43f7
R10: dffffc0000000000 R11: fffffbfff20f43f8 R12: 0000000002000001
R13: 0000000000000000 R14: 0000000000000200 R15: 0000000000000000
queue_delayed_work include/linux/workqueue.h:715 [inline]
batadv_mcast_start_timer net/batman-adv/multicast.c:70 [inline]
batadv_mcast_mla_update+0x34e4/0x3750 net/batman-adv/multicast.c:950
process_one_work kernel/workqueue.c:3495 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: fa cli
1: a4 movsb %ds:(%rsi),%es:(%rdi)
2: 6f outsl %ds:(%rsi),(%dx)
3: fa cli
4: 49 83 3f 00 cmpq $0x0,(%r15)
8: 48 c7 c0 00 70 d3 8c mov $0xffffffff8cd37000,%rax
f: 49 c7 c0 20 70 d3 8c mov $0xffffffff8cd37020,%r8
16: 4c 0f 44 c0 cmove %rax,%r8
1a: 4c 89 f7 mov %r14,%rdi
1d: 48 c7 c6 00 01 6c 8e mov $0xffffffff8e6c0100,%rsi
24: 44 89 ea mov %r13d,%edx
27: 4c 89 e1 mov %r12,%rcx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: bd ea ff ff ff mov $0xffffffea,%ebp
34: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
39: e8 60 57 fe f9 call 0xf9fe579e
3e: 65 gs
3f: 8b .byte 0x8b