------------[ cut here ]------------ usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0 WARNING: CPU: 1 PID: 4380 at drivers/usb/gadget/udc/core.c:108 usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107 Modules linked in: CPU: 1 PID: 4380 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 00 29 d5 8a 49 c7 c0 20 29 d5 8a 4c 0f 44 c0 48 c7 c7 c0 28 d5 8a 48 c7 c6 63 bb e1 8b 89 ea e8 c1 70 80 03 <0f> 0b e9 e1 fe ff ff e8 85 3b 43 fb 49 bc 00 00 00 00 00 fc ff df RSP: 0018:ffffc90000dd0688 EFLAGS: 00010046 RAX: 8439a0971c843400 RBX: ffff8880240600e0 RCX: ffff88801de45940 RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000 RBP: 0000000000000081 R08: ffff8880b912795b R09: 1ffff11017224f2b R10: dffffc0000000000 R11: ffffed1017224f2c R12: dffffc0000000000 R13: ffff88802406010d R14: ffff8880240600e8 R15: ffff88805d651bba FS: 0000555582383500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f48f253ddc0 CR3: 0000000053237000 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: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+0x1338/0x34a0 drivers/usb/gadget/udc/dummy_hcd.c:1944 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:__sanitizer_cov_trace_switch+0x54/0xe0 kernel/kcov.c:327 Code: 48 8b 06 48 85 c0 0f 84 a4 00 00 00 41 57 41 56 41 54 53 48 8d 4c 09 01 48 8b 54 24 20 65 4c 8b 05 71 56 89 7e 45 31 c9 eb 08 <49> ff c1 4c 39 c8 74 77 4e 8b 54 ce 10 65 44 8b 1d 5f 56 89 7e 41 RSP: 0018:ffffc900014ef7e8 EFLAGS: 00000293 RAX: 0000000000000012 RBX: ffff0a00ffffff04 RCX: 0000000000000001 RDX: ffffffff840c04ae RSI: ffffffff8c94fb00 RDI: 0000000000000004 RBP: ffffffff8a73eb27 R08: ffff88801de45940 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004 R13: ffffc900014ef9c5 R14: 0000000000000002 R15: ffffffff8a73eb25 vsnprintf+0x10e/0x1c20 lib/vsprintf.c:2767 tomoyo_supervisor+0x183/0x1190 security/tomoyo/common.c:2069 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission+0x262/0x3a0 security/tomoyo/file.c:587 tomoyo_path_perm+0x3b0/0x5d0 security/tomoyo/file.c:838 tomoyo_path_symlink+0xa8/0xf0 security/tomoyo/tomoyo.c:199 security_path_symlink+0xdc/0x130 security/security.c:1229 do_symlinkat+0x105/0x6b0 fs/namei.c:4504 __do_sys_symlinkat fs/namei.c:4526 [inline] __se_sys_symlinkat fs/namei.c:4523 [inline] __x64_sys_symlinkat+0x95/0xa0 fs/namei.c:4523 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: 0033:0x7f48f252c217 Code: 44 00 00 48 89 f2 31 c9 48 89 fe bf 9c ff ff ff e9 8e f5 ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdf2f948e8 EFLAGS: 00000206 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f48f252c217 RDX: 00007f48f25c502d RSI: 00000000ffffff9c RDI: 00007ffdf2f94980 RBP: 00007ffdf2f9492c R08: 0000000000000001 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000007 R13: 00000000000927c0 R14: 0000000000013e4e R15: 00007ffdf2f94980 ---------------- Code disassembly (best guess): 0: 48 8b 06 mov (%rsi),%rax 3: 48 85 c0 test %rax,%rax 6: 0f 84 a4 00 00 00 je 0xb0 c: 41 57 push %r15 e: 41 56 push %r14 10: 41 54 push %r12 12: 53 push %rbx 13: 48 8d 4c 09 01 lea 0x1(%rcx,%rcx,1),%rcx 18: 48 8b 54 24 20 mov 0x20(%rsp),%rdx 1d: 65 4c 8b 05 71 56 89 mov %gs:0x7e895671(%rip),%r8 # 0x7e895696 24: 7e 25: 45 31 c9 xor %r9d,%r9d 28: eb 08 jmp 0x32 * 2a: 49 ff c1 inc %r9 <-- trapping instruction 2d: 4c 39 c8 cmp %r9,%rax 30: 74 77 je 0xa9 32: 4e 8b 54 ce 10 mov 0x10(%rsi,%r9,8),%r10 37: 65 44 8b 1d 5f 56 89 mov %gs:0x7e89565f(%rip),%r11d # 0x7e89569e 3e: 7e 3f: 41 rex.B