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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 0 PID: 327 at drivers/usb/gadget/udc/core.c:123 usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:122
Modules linked in:
CPU: 0 UID: 0 PID: 327 Comm: udevd Not tainted syzkaller #0 0b31bef96cff8e44f9e14c4f768eb06c85e3b290
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:122
Code: 4d 00 48 c7 c0 e0 52 6d 86 49 c7 c0 00 53 6d 86 4c 0f 44 c0 48 c7 c7 a0 52 6d 86 48 c7 c6 46 ec 1c 87 44 89 f2 e8 20 c8 4b fd <0f> 0b e9 4c ff ff ff e8 e4 ef ce fd 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000007878 EFLAGS: 00010046
RAX: 9cb3c7e823048a00 RBX: ffff888104b6c0b0 RCX: ffff888107fb9300
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900000078a0 R08: ffff8881f6e294d3 R09: 1ffff1103edc529a
R10: dffffc0000000000 R11: ffffed103edc529b R12: dffffc0000000000
R13: ffff888104b6c0b8 R14: 0000000000000081 R15: ffff88810bee49ba
FS: 00007fdb12d78880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e29b4e0060 CR3: 00000001103c6000 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:kernfs_refresh_inode fs/kernfs/inode.c:171 [inline]
RIP: 0010:kernfs_iop_permission+0xf5/0x590 fs/kernfs/inode.c:288
Code: 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df 80 3c 10 00 74 0f e8 cc d3 cf ff 48 ba 00 00 00 00 00 fc ff df 89 5d d4 4d 8b 6f 70 <4d> 8d 67 3e 4c 89 e0 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 01 03 00
RSP: 0018:ffffc9000b807858 EFLAGS: 00000246
RAX: 1ffff110217dc4aa RBX: 0000000000000001 RCX: 9cb3c7e823048a00
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88810bee2550
RBP: ffffc9000b807890 R08: ffff8881016508af R09: 1ffff110202ca115
R10: dffffc0000000000 R11: ffffed10202ca116 R12: ffff88810564c600
R13: 0000000000000000 R14: ffff888112ce3740 R15: ffff88810bee24e0
do_inode_permission fs/namei.c:468 [inline]
inode_permission+0x250/0x4c0 fs/namei.c:535
may_lookup fs/namei.c:1768 [inline]
link_path_walk+0x22d/0xeb0 fs/namei.c:2374
path_openat+0x298/0x35a0 fs/namei.c:3937
do_filp_open+0x1f2/0x440 fs/namei.c:3968
do_sys_openat2+0x134/0x1d0 fs/open.c:1440
do_sys_open fs/open.c:1455 [inline]
__do_sys_openat fs/open.c:1471 [inline]
__se_sys_openat fs/open.c:1466 [inline]
__x64_sys_openat+0x13a/0x170 fs/open.c:1466
x64_sys_call+0xe69/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7fdb126a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe11625830 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fdb12d78880 RCX: 00007fdb126a7407
RDX: 0000000000080000 RSI: 00007ffe116259b0 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055e299c117f5
R13: 000055e299c117f5 R14: 0000000000000001 R15: 000055e299c2c140
---[ end trace 0000000000000000 ]---
configfs-gadget.g1 gadget.0: Enable IN endpoint FAILED!
----------------
Code disassembly (best guess):
0: 48 c1 e8 03 shr $0x3,%rax
4: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
b: fc ff df
e: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1)
12: 74 0f je 0x23
14: e8 cc d3 cf ff call 0xffcfd3e5
19: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
20: fc ff df
23: 89 5d d4 mov %ebx,-0x2c(%rbp)
26: 4d 8b 6f 70 mov 0x70(%r15),%r13
* 2a: 4d 8d 67 3e lea 0x3e(%r15),%r12 <-- trapping instruction
2e: 4c 89 e0 mov %r12,%rax
31: 48 c1 e8 03 shr $0x3,%rax
35: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax
39: 84 c0 test %al,%al
3b: 0f .byte 0xf
3c: 85 01 test %eax,(%rcx)
3e: 03 00 add (%rax),%eax