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usb_ep_enable: ep134 (ep6in-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: udevd/5002
Modules linked in:
CPU: 0 UID: 0 PID: 5002 Comm: udevd Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:usb_ep_enable+0x1bc/0x480 drivers/usb/gadget/udc/core.c:124
Code: 3a bc 59 fa 49 83 3f 00 48 c7 c0 c0 5c 16 8d 49 c7 c0 e0 5c 16 8d 4c 0f 44 c0 4c 89 f7 48 c7 c6 30 20 c9 8e 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 f0 f1 df f9 65 8b
RSP: 0018:ffffc90000007910 EFLAGS: 00010082
RAX: ffffffff8d165cc0 RBX: ffff88802b5fc248 RCX: ffffffff8d167c00
RDX: 0000000000000086 RSI: ffffffff8ec92030 RDI: ffffffff91ef35e0
RBP: dffffc0000000000 R08: ffffffff8d165ce0 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: ffffffff8d167c00
R13: 0000000000000086 R14: ffffffff91ef35e0 R15: ffff88802b5fc260
FS: 00007f2fef58d880(0000) GS:ffff888123159000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007d80e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000001800
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
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+0x2f30/0x4ce0 drivers/usb/gadget/udc/dummy_hcd.c:1983
__run_hrtimer kernel/time/hrtimer.c:2079 [inline]
__hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2136
hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2153
handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
__do_softirq kernel/softirq.c:703 [inline]
invoke_softirq kernel/softirq.c:542 [inline]
__irq_exit_rcu+0xc6/0x220 kernel/softirq.c:786
irq_exit_rcu+0x9/0x30 kernel/softirq.c:809
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1073 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1073
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:get_reg arch/x86/kernel/unwind_orc.c:-1 [inline]
RIP: 0010:unwind_next_frame+0x129a/0x2550 arch/x86/kernel/unwind_orc.c:672
Code: 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 5b 62 ca 00 48 8b 3b 48 85 ff 0f 84 34 07 00 00 48 83 c7 20 e8 f6 1d 00 00 <48> 89 c3 4d 8d 7e 40 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc
RSP: 0018:ffffc90003ca78a0 EFLAGS: 00000282
RAX: 0000000000000000 RBX: ffffc90003ca797e RCX: dffffc0000000000
RDX: ffffffff92727052 RSI: 0000000000000000 RDI: ffffc90003ca7f68
RBP: 1ffffffff24e4e0a R08: ffffc90003ca7f48 R09: 0000000000000000
R10: ffffc90003ca7998 R11: ffffffff81b3e670 R12: dffffc0000000000
R13: ffffffff9272704e R14: ffffc90003ca7948 R15: ffffc90003ca7980
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3f/0x90 mm/kasan/common.c:79
unpoison_slab_object mm/kasan/common.c:354 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:380
kasan_slab_alloc include/linux/kasan.h:257 [inline]
slab_post_alloc_hook mm/slub.c:4716 [inline]
slab_alloc_node mm/slub.c:5029 [inline]
kmem_cache_alloc_noprof+0x2b4/0x600 mm/slub.c:5043
alloc_filename fs/namei.c:147 [inline]
do_getname+0x2e/0x250 fs/namei.c:187
class_filename_flags_constructor include/linux/fs.h:2595 [inline]
do_sys_openat2+0xce/0x200 fs/open.c:1442
do_sys_open fs/open.c:1449 [inline]
__do_sys_openat fs/open.c:1789 [inline]
__se_sys_openat fs/open.c:1784 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1784
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x16a/0x530 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x00007f2feeea7407
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:00007ffc295c7000 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f2fef58d880 RCX: 00007f2feeea7407
RDX: 0000000000080141 RSI: 0000556f0a8aa02e RDI: ffffffffffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff
R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 59 pop %rcx
1: fa cli
2: 49 83 3f 00 cmpq $0x0,(%r15)
6: 48 c7 c0 c0 5c 16 8d mov $0xffffffff8d165cc0,%rax
d: 49 c7 c0 e0 5c 16 8d mov $0xffffffff8d165ce0,%r8
14: 4c 0f 44 c0 cmove %rax,%r8
18: 4c 89 f7 mov %r14,%rdi
1b: 48 c7 c6 30 20 c9 8e mov $0xffffffff8ec92030,%rsi
22: 44 89 ea mov %r13d,%edx
25: 4c 89 e1 mov %r12,%rcx
* 28: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2d: bd ea ff ff ff mov $0xffffffea,%ebp
32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
37: e8 f0 f1 df f9 call 0xf9dff22c
3c: 65 gs
3d: 8b .byte 0x8b