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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 0 PID: 4932 at drivers/usb/gadget/udc/core.c:108 usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Modules linked in:
CPU: 0 PID: 4932 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Code: 49 8b 0e 48 c7 c0 80 27 d5 8a 49 c7 c0 a0 27 d5 8a 4c 0f 44 c0 48 c7 c7 40 27 d5 8a 48 c7 c6 1d 96 e1 8b 89 ea e8 c1 94 7f 03 <0f> 0b e9 e1 fe ff ff e8 95 67 43 fb 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900000076a8 EFLAGS: 00010046
RAX: f47389fad0df0c00 RBX: ffff8880247180e0 RCX: ffff88807d9bd940
RDX: 0000000000000100 RSI: 0000000000000104 RDI: 0000000000000000
RBP: 0000000000000081 R08: ffff8880b902795b R09: 1ffff11017204f2b
R10: dffffc0000000000 R11: ffffed1017204f2c R12: dffffc0000000000
R13: ffff88802471810d R14: ffff8880247180e8 R15: ffff8880624c673a
FS: 00005555800ac500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558c1369d660 CR3: 00000000518c3000 CR4: 00000000003506f0
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:822
set_config+0x734/0xfa0 drivers/usb/gadget/composite.c:972
composite_setup+0x1999/0x2b60 drivers/usb/gadget/composite.c:1878
configfs_composite_setup+0xc3/0x100 drivers/usb/gadget/configfs.c:1492
dummy_timer+0x1338/0x33c0 drivers/usb/gadget/udc/dummy_hcd.c:1930
call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
expire_timers kernel/time/timer.c:1699 [inline]
__run_timers+0x56c/0x810 kernel/time/timer.c:1970
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
handle_softirqs+0x336/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:unwind_next_frame+0x6a7/0x1cf0 arch/x86/kernel/unwind_orc.c:471
Code: 74 64 44 89 f9 80 e1 07 38 c1 7c 5a be 02 00 00 00 4c 89 ff 49 89 d6 e8 57 0b 89 00 e9 0c 13 00 00 48 8b 44 24 28 80 3c 28 00 <4c> 8d 73 38 74 08 4c 89 f7 e8 7b 0a 89 00 49 8b 16 4d 8d 7c 24 01
RSP: 0018:ffffc900032ceed0 EFLAGS: 00000246
RAX: 1ffff92000659df4 RBX: ffffc900032cef68 RCX: ffffffff8d9fde18
RDX: ffffffff8e0ebdf0 RSI: ffffffff8d9fde00 RDI: 0000000000000001
RBP: dffffc0000000000 R08: 0000000000000009 R09: 0000000000000006
R10: dffffc0000000000 R11: fffff52000659df9 R12: ffffffff8e0ebe08
R13: 1ffffffff1c1d7c1 R14: 0000000000000005 R15: ffffffff8e0ebe0c
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1710 [inline]
slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736
slab_free mm/slub.c:3504 [inline]
kmem_cache_free+0x8f/0x210 mm/slub.c:3520
merge_or_add_vmap_area mm/vmalloc.c:1149 [inline]
free_vmap_area_noflush+0x851/0xab0 mm/vmalloc.c:1766
free_unmap_vmap_area mm/vmalloc.c:1785 [inline]
remove_vm_area+0x1ac/0x1d0 mm/vmalloc.c:2524
vm_remove_mappings mm/vmalloc.c:2553 [inline]
__vunmap+0x31d/0xa80 mm/vmalloc.c:2618
copy_entries_to_user net/ipv4/netfilter/arp_tables.c:722 [inline]
get_entries net/ipv4/netfilter/arp_tables.c:876 [inline]
do_arpt_get_ctl+0xd59/0x1010 net/ipv4/netfilter/arp_tables.c:1469
nf_getsockopt+0x25e/0x280 net/netfilter/nf_sockopt.c:116
ip_getsockopt+0x1219/0x1660 net/ipv4/ip_sockglue.c:1797
tcp_getsockopt+0x209/0x2530 net/ipv4/tcp.c:4323
__sys_getsockopt+0x1b0/0x230 net/socket.c:2257
__do_sys_getsockopt net/socket.c:2272 [inline]
__se_sys_getsockopt net/socket.c:2269 [inline]
__x64_sys_getsockopt+0xb1/0xc0 net/socket.c:2269
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f22ddfd98aa
Code: 48 83 ec 10 89 d2 48 63 ff 45 31 c9 6a 2a 45 31 c0 31 c9 e8 d8 99 fb ff 48 83 c4 18 c3 0f 1f 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 e8 ff ff ff f7
RSP: 002b:00007ffd4b65d948 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f22ddfd98aa
RDX: 0000000000000061 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffd4b65d9b0 R08: 00007ffd4b65d95c R09: 0000000000000000
R10: 00007ffd4b65d9b0 R11: 0000000000000212 R12: 00007ffd4b65d95c
R13: 00007f22de06fa72 R14: 000000000003dc7b R15: 00007ffd4b65e0a0
----------------
Code disassembly (best guess):
0: 74 64 je 0x66
2: 44 89 f9 mov %r15d,%ecx
5: 80 e1 07 and $0x7,%cl
8: 38 c1 cmp %al,%cl
a: 7c 5a jl 0x66
c: be 02 00 00 00 mov $0x2,%esi
11: 4c 89 ff mov %r15,%rdi
14: 49 89 d6 mov %rdx,%r14
17: e8 57 0b 89 00 call 0x890b73
1c: e9 0c 13 00 00 jmp 0x132d
21: 48 8b 44 24 28 mov 0x28(%rsp),%rax
26: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1)
* 2a: 4c 8d 73 38 lea 0x38(%rbx),%r14 <-- trapping instruction
2e: 74 08 je 0x38
30: 4c 89 f7 mov %r14,%rdi
33: e8 7b 0a 89 00 call 0x890ab3
38: 49 8b 16 mov (%r14),%rdx
3b: 4d 8d 7c 24 01 lea 0x1(%r12),%r15