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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 8161 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x27c/0x4d0 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 1 PID: 8161 Comm: syz.5.970 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:usb_ep_enable+0x27c/0x4d0 drivers/usb/gadget/udc/core.c:124
Code: 49 8b 0e 48 c7 c0 80 08 5e 8b 49 c7 c0 a0 08 5e 8b 4c 0f 44 c0 48 c7 c7 40 08 5e 8b 48 c7 c6 a9 84 85 8c 89 ea e8 e4 b3 d2 fa <0f> 0b e9 c4 fe ff ff e8 18 52 07 fb 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900001e0768 EFLAGS: 00010046
RAX: efbef6e51c1d8c00 RBX: ffff888025c540e0 RCX: ffff88802e9ada00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000081 R08: ffff8880b8d279db R09: 1ffff110171a4f3b
R10: dffffc0000000000 R11: ffffed10171a4f3c R12: dffffc0000000000
R13: ffff888025c5410d R14: ffff888025c540e8 R15: ffff888021bd543a
FS: 0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d222ff8 CR3: 000000008c79a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hidg_set_alt+0x126/0xa00 drivers/usb/gadget/function/f_hid.c:823
set_config+0x6e8/0xf70 drivers/usb/gadget/composite.c:986
composite_setup+0x194c/0x2b00 drivers/usb/gadget/composite.c:1893
configfs_composite_setup+0xc3/0x100 drivers/usb/gadget/configfs.c:1484
dummy_timer+0x12ed/0x35d0 drivers/usb/gadget/udc/dummy_hcd.c:1954
__run_hrtimer kernel/time/hrtimer.c:1751 [inline]
__hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
handle_softirqs+0x291/0x910 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:folio_memcg_lock+0x103/0x320 mm/memcontrol.c:-1
Code: 48 c7 c2 60 74 b8 8a e8 cb 63 8a ff 0f 1f 44 00 00 4c 89 e7 e8 0e d5 ff ff 48 85 c0 0f 84 ce 01 00 00 49 89 c7 4c 89 64 24 10 <48> b8 00 00 00 00 00 fc ff df 41 c6 44 06 04 00 48 c7 44 24 40 00
RSP: 0018:ffffc90003b67340 EFLAGS: 00000286
RAX: ffff88813fef8000 RBX: ffffea0001c50c40 RCX: ffffffff81da83d3
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0001c50c40
RBP: ffffc90003b67410 R08: ffffea0001c50c47 R09: 1ffffd400038a188
R10: dffffc0000000000 R11: fffff9400038a189 R12: ffffea0001c50c40
R13: 0000000000000000 R14: 1ffff9200076ce6c R15: ffff88813fef8000
page_remove_rmap+0x2e/0xef0 mm/rmap.c:1430
zap_pte_range mm/memory.c:1451 [inline]
zap_pmd_range mm/memory.c:1572 [inline]
zap_pud_range mm/memory.c:1601 [inline]
zap_p4d_range mm/memory.c:1622 [inline]
unmap_page_range+0x10db/0x25b0 mm/memory.c:1643
unmap_vmas+0x260/0x390 mm/memory.c:1728
exit_mmap+0x20d/0x970 mm/mmap.c:3293
__mmput+0x118/0x3a0 kernel/fork.c:1214
exit_mm+0x24d/0x350 kernel/exit.c:572
do_exit+0x958/0x2570 kernel/exit.c:874
do_group_exit+0x229/0x2e0 kernel/exit.c:1030
get_signal+0x1259/0x1340 kernel/signal.c:2884
arch_do_signal_or_restart+0xc4/0x1310 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213
__syscall_exit_to_user_mode_work kernel/entry/common.c:295 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:306
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f63e9b9fb19
Code: Unable to access opcode bytes at 0x7f63e9b9faef.
RSP: 002b:00007f63eaa240e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f63e9e25fa8 RCX: 00007f63e9b9fb19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f63e9e25fac
RBP: 00007f63e9e25fa0 R08: 00140b663f084224 R09: 0000000000000000
R10: 0000000000000089 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f63e9e26038 R14: 00007ffeb4ea85c0 R15: 00007ffeb4ea86a8
----------------
Code disassembly (best guess):
0: 48 c7 c2 60 74 b8 8a mov $0xffffffff8ab87460,%rdx
7: e8 cb 63 8a ff call 0xff8a63d7
c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
11: 4c 89 e7 mov %r12,%rdi
14: e8 0e d5 ff ff call 0xffffd527
19: 48 85 c0 test %rax,%rax
1c: 0f 84 ce 01 00 00 je 0x1f0
22: 49 89 c7 mov %rax,%r15
25: 4c 89 64 24 10 mov %r12,0x10(%rsp)
* 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction
31: fc ff df
34: 41 c6 44 06 04 00 movb $0x0,0x4(%r14,%rax,1)
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 44 24 40 rex.R and $0x40,%al