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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 0 PID: 702 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 0 UID: 0 PID: 702 Comm: syz.0.147 Not tainted syzkaller #0 28dc4f15f82f041c91cead1444746a7bfe1433af
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:124
Code: 4d 00 48 c7 c0 e0 51 6d 86 49 c7 c0 00 52 6d 86 4c 0f 44 c0 48 c7 c7 a0 51 6d 86 48 c7 c6 6c 06 1d 87 44 89 f2 e8 e0 c5 4b fd <0f> 0b e9 4c ff ff ff e8 a4 ed ce fd 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000007878 EFLAGS: 00010046
RAX: 6ab9cc9c8f4a3b00 RBX: ffff888104f240b0 RCX: ffff88810d3d0000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900000078a0 R08: ffff8881f6e294d3 R09: 1ffff1103edc529a
R10: dffffc0000000000 R11: ffffed103edc529b R12: dffffc0000000000
R13: ffff888104f240b8 R14: 0000000000000081 R15: ffff888108792bba
FS: 00007fdaee6646c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000002c CR3: 0000000109f8a000 CR4: 00000000003526b0
Call Trace:
hidg_set_alt+0x138/0xa70 drivers/usb/gadget/function/f_hid.c:1057
set_config+0x812/0xd10 drivers/usb/gadget/composite.c:1021
composite_setup+0x1885/0x32f0 drivers/usb/gadget/composite.c:1929
configfs_composite_setup+0xc6/0x110 drivers/usb/gadget/configfs.c:1883
dummy_timer+0x2eee/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:1935
__run_hrtimer kernel/time/hrtimer.c:1757 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1821
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1838
handle_softirqs+0x1aa/0x620 kernel/softirq.c:621
__do_softirq kernel/softirq.c:659 [inline]
invoke_softirq kernel/softirq.c:476 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:io_ring_ctx_alloc+0x16d9/0x1dc0 io_uring/io_uring.c:367
Code: 3c 38 00 74 05 e8 9c 61 da 00 49 8b be 50 01 00 00 e8 40 11 d6 00 48 8b 7d 90 e8 d7 46 9d 04 4c 89 f7 e8 2f 11 d6 00 45 31 f6 <4c> 89 f0 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d e9 16 ca a0 04
RSP: 0018:ffffc9000e287cd8 EFLAGS: 00000246
RAX: 1ffff11021ccc2a8 RBX: ffff88810e661430 RCX: 0000000000080000
RDX: ffffc90001621000 RSI: 0000000000039df6 RDI: ffff88810e661548
RBP: ffffc9000e287d48 R08: 0000000000000000 R09: 0000000000000000
R10: ffff88810e6612f8 R11: ffffed1021ccc261 R12: ffff88810d386800
R13: ffff88810d384800 R14: ffff88810e661000 R15: dffffc0000000000
io_uring_create+0x2e0/0x13f0 io_uring/io_uring.c:3620
io_uring_setup io_uring/io_uring.c:3810 [inline]
__do_sys_io_uring_setup io_uring/io_uring.c:3837 [inline]
__se_sys_io_uring_setup+0x2a4/0x2b0 io_uring/io_uring.c:3831
__x64_sys_io_uring_setup+0x5f/0x80 io_uring/io_uring.c:3831
x64_sys_call+0x22c0/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:426
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: 0033:0x7fdaed79e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdaee663ee8 EFLAGS: 00000206 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00002000000009e8 RCX: 00007fdaed79e0d9
RDX: 0000200000000a68 RSI: 00002000000009e8 RDI: 00000000000003c9
RBP: 00002000000009e0 R08: 0000000000000008 R09: 0000000000000000
R10: 0000200000000a70 R11: 0000000000000206 R12: 0000200000000a68
R13: 0000200000000a70 R14: 00007fdaee663fd8 R15: 0000000000000003
---[ end trace 0000000000000000 ]---
configfs-gadget.g1 gadget.0: Enable IN endpoint FAILED!
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 38 00 cmp %al,(%rax)
2: 74 05 je 0x9
4: e8 9c 61 da 00 call 0xda61a5
9: 49 8b be 50 01 00 00 mov 0x150(%r14),%rdi
10: e8 40 11 d6 00 call 0xd61155
15: 48 8b 7d 90 mov -0x70(%rbp),%rdi
19: e8 d7 46 9d 04 call 0x49d46f5
1e: 4c 89 f7 mov %r14,%rdi
21: e8 2f 11 d6 00 call 0xd61155
26: 45 31 f6 xor %r14d,%r14d
* 29: 4c 89 f0 mov %r14,%rax <-- trapping instruction
2c: 48 83 c4 48 add $0x48,%rsp
30: 5b pop %rbx
31: 41 5c pop %r12
33: 41 5d pop %r13
35: 41 5e pop %r14
37: 41 5f pop %r15
39: 5d pop %rbp
3a: e9 16 ca a0 04 jmp 0x4a0ca55