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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 348 at drivers/usb/gadget/udc/core.c:134 usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:133
Modules linked in:
CPU: 1 UID: 0 PID: 348 Comm: udevd Not tainted syzkaller #0 6d6f333215c564de92c741644a4b57c848379815
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:133
Code: 4d 00 48 c7 c0 a0 c1 6d 86 49 c7 c0 c0 c1 6d 86 4c 0f 44 c0 48 c7 c7 60 c1 6d 86 48 c7 c6 a2 d6 1f 87 44 89 f2 e8 00 c0 46 fd <0f> 0b e9 4c ff ff ff e8 b4 d8 cb fd 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000230878 EFLAGS: 00010046
RAX: 49a373a69eb8a900 RBX: ffff88810539c0b0 RCX: ffff88811314cf00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900002308a0 R08: ffff8881f6d29593 R09: 1ffff1103eda52b2
R10: dffffc0000000000 R11: ffffed103eda52b3 R12: dffffc0000000000
R13: ffff88810539c0b8 R14: 0000000000000081 R15: ffff888132f4333a
FS: 00007f3763399880(0000) GS:ffff8881f6d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001309d2000 CR4: 00000000003526b0
Call Trace:
hidg_set_alt+0x138/0xa70 drivers/usb/gadget/function/f_hid.c:1057
set_config+0x80f/0xd10 drivers/usb/gadget/composite.c:1021
composite_setup+0x18b0/0x3320 drivers/usb/gadget/composite.c:1930
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:1758 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1b0/0x5b0 kernel/softirq.c:684
__do_softirq kernel/softirq.c:722 [inline]
invoke_softirq kernel/softirq.c:539 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:771
irq_exit_rcu+0xd/0x30 kernel/softirq.c:783
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:unwind_next_frame+0x2cb/0x6b0 arch/x86/kernel/unwind_frame.c:305
Code: 80 3c 30 00 74 08 48 89 df e8 e1 84 9e 00 48 c7 03 00 00 00 00 b0 01 e9 7f 02 00 00 4c 89 f0 4c 8d 73 50 4d 89 f5 49 c1 ed 03 <41> 80 7c 05 00 00 74 08 4c 89 f7 e8 95 83 9e 00 49 8b 0e 48 85 c9
RSP: 0018:ffffc9000b8b70c8 EFLAGS: 00000a02
RAX: dffffc0000000000 RBX: ffffc9000b8b7128 RCX: 0000000001716e00
RDX: dffffc0000000000 RSI: ffffffff81f159b8 RDI: ffffc9000b8b7f48
RBP: ffffc9000b8b7118 R08: ffffc9000b8b71f0 R09: ffffc9000b8b71e8
R10: 000000000000000b R11: ffffffff81778d20 R12: ffffc9000b8b79b0
R13: 1ffff92001716e2f R14: ffffc9000b8b7178 R15: 0000000000000000
arch_stack_walk+0x138/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:49 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
unpoison_slab_object mm/kasan/common.c:321 [inline]
__kasan_slab_alloc+0x73/0x90 mm/kasan/common.c:347
kasan_slab_alloc include/linux/kasan.h:251 [inline]
slab_post_alloc_hook mm/slub.c:4204 [inline]
slab_alloc_node mm/slub.c:4253 [inline]
kmem_cache_alloc_lru_noprof+0x1c2/0x410 mm/slub.c:4274
alloc_inode+0xa9/0x270 fs/inode.c:271
iget_locked+0x198/0x9a0 fs/inode.c:1431
kernfs_get_inode+0x50/0x830 fs/kernfs/inode.c:251
kernfs_iop_lookup+0x213/0x320 fs/kernfs/dir.c:1220
__lookup_slow+0x2e2/0x420 fs/namei.c:1740
lookup_slow+0x57/0x80 fs/namei.c:1757
walk_component fs/namei.c:2061 [inline]
link_path_walk+0x991/0xeb0 fs/namei.c:2426
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:1434
do_sys_open fs/open.c:1449 [inline]
__do_sys_openat fs/open.c:1465 [inline]
__se_sys_openat fs/open.c:1460 [inline]
__x64_sys_openat+0x13a/0x170 fs/open.c:1460
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: 0033:0x7f37639c4407
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:00007fffae5b2630 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3763399880 RCX: 00007f37639c4407
RDX: 0000000000080000 RSI: 00007fffae5b27b0 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055f2807907f5
R13: 000055f2807907f5 R14: 0000000000000001 R15: 000055f2807ab140
---[ end trace 0000000000000000 ]---
configfs-gadget.g1 gadget.0: Enable IN endpoint FAILED!
----------------
Code disassembly (best guess):
0: 80 3c 30 00 cmpb $0x0,(%rax,%rsi,1)
4: 74 08 je 0xe
6: 48 89 df mov %rbx,%rdi
9: e8 e1 84 9e 00 call 0x9e84ef
e: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
15: b0 01 mov $0x1,%al
17: e9 7f 02 00 00 jmp 0x29b
1c: 4c 89 f0 mov %r14,%rax
1f: 4c 8d 73 50 lea 0x50(%rbx),%r14
23: 4d 89 f5 mov %r14,%r13
26: 49 c1 ed 03 shr $0x3,%r13
* 2a: 41 80 7c 05 00 00 cmpb $0x0,0x0(%r13,%rax,1) <-- trapping instruction
30: 74 08 je 0x3a
32: 4c 89 f7 mov %r14,%rdi
35: e8 95 83 9e 00 call 0x9e83cf
3a: 49 8b 0e mov (%r14),%rcx
3d: 48 85 c9 test %rcx,%rcx