ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor3254975546 <...> Warning: Permanently added '10.128.0.78' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor3254975546", ["ci2-upstream-fs/syz-executor3254975546"], 0x7ffe94a61080 /* 10 vars */) = 0 brk(NULL) = 0x55556130f000 brk(0x55556130fd80) = 0x55556130fd80 arch_prctl(ARCH_SET_FS, 0x55556130f400) = 0 set_tid_address(0x55556130f6d0) = 5601 set_robust_list(0x55556130f6e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-upstream-fs/syz-executor3254975546", 4096) = 44 getrandom("\x8f\x3d\x05\x8c\x7d\x6e\x16\x3c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556130fd80 brk(0x555561330d80) = 0x555561330d80 brk(0x555561331000) = 0x555561331000 mprotect(0x7fa380b2f000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5602 attached , child_tidptr=0x55556130f6d0) = 5602 [pid 5601] rt_sigprocmask(SIG_SETMASK, [] [pid 5602] set_robust_list(0x55556130f6e0, 24 [pid 5601] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5602] <... set_robust_list resumed>) = 0 [pid 5602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5602] setpgid(0, 0) = 0 [pid 5602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5602] write(3, "1000", 4) = 4 [pid 5602] close(3) = 0 executing program [pid 5602] write(1, "executing program\n", 18) = 18 [pid 5602] mkdirat(AT_FDCWD, "./config", 0777) = 0 [pid 5602] mount(NULL, "./config", "configfs", 0, NULL) = 0 [pid 5602] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = 0 [pid 5602] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = 0 [pid 5602] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = 0 [pid 5602] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = 0 [pid 5602] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5602] write(3, "dummy_udc.0", 11) = 11 [pid 5602] exit_group(0) = ? [pid 5602] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5602, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5605 attached [pid 5605] set_robust_list(0x55556130f6e0, 24 [pid 5601] <... clone resumed>, child_tidptr=0x55556130f6d0) = 5605 [pid 5605] <... set_robust_list resumed>) = 0 [pid 5605] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5601] rt_sigprocmask(SIG_SETMASK, [] [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5605] <... prctl resumed>) = 0 [pid 5605] setpgid(0, 0) = 0 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5605] write(3, "1000", 4) = 4 [pid 5605] close(3) = 0 [pid 5605] write(1, "executing program\n", 18) = 18 executing program [pid 5605] mkdirat(AT_FDCWD, "./config", 0777) = -1 EEXIST (File exists) [pid 5605] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5605] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5605] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5605] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [pid 5605] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [pid 5605] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5605] write(3, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5605] exit_group(0) = ? [pid 5605] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5607 attached , child_tidptr=0x55556130f6d0) = 5607 [pid 5607] set_robust_list(0x55556130f6e0, 24 [pid 5601] rt_sigprocmask(SIG_SETMASK, [] [pid 5607] <... set_robust_list resumed>) = 0 [pid 5601] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5607] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5607] setpgid(0, 0) = 0 [pid 5607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5607] write(3, "1000", 4) = 4 [pid 5607] close(3) = 0 executing program [pid 5607] write(1, "executing program\n", 18) = 18 [pid 5607] mkdirat(AT_FDCWD, "./config", 0777) = -1 EEXIST (File exists) [pid 5607] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5607] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5607] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5607] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [ 82.413307][ T896] usb 1-1: new high-speed USB device number 2 using dummy_hcd [pid 5607] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [pid 5607] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5607] write(3, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5607] exit_group(0) = ? [pid 5607] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5607, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5608 attached , child_tidptr=0x55556130f6d0) = 5608 [pid 5608] set_robust_list(0x55556130f6e0, 24 [pid 5601] rt_sigprocmask(SIG_SETMASK, [] [pid 5608] <... set_robust_list resumed>) = 0 [pid 5601] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5608] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5608] setpgid(0, 0) = 0 [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5608] write(3, "1000", 4) = 4 [pid 5608] close(3) = 0 [pid 5608] write(1, "executing program\n", 18) = 18 executing program [pid 5608] mkdirat(AT_FDCWD, "./config", 0777) = -1 EEXIST (File exists) [pid 5608] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5608] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5608] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5608] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [pid 5608] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [ 82.565264][ T896] usb 1-1: New USB device found, idVendor=0000, idProduct=0000, bcdDevice= 7.02 [ 82.568575][ T896] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 82.568594][ T896] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 [ 82.568613][ T896] usb 1-1: Dual-Role OTG device on HNP port [ 82.568874][ T896] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 82.626407][ C1] ------------[ cut here ]------------ [ 82.626422][ C1] usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0 [ 82.626446][ C1] WARNING: drivers/usb/gadget/udc/core.c:125 at usb_ep_enable+0x148/0x480, CPU#1: ktimers/1/29 [ 82.626506][ C1] Modules linked in: [ 82.626550][ C1] CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 82.626579][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 82.626593][ C1] RIP: 0010:usb_ep_enable+0x1bc/0x480 [ 82.626619][ C1] Code: 7a 35 04 fb 49 83 3f 00 48 c7 c0 a0 6b 1f 8c 49 c7 c0 c0 6b 1f 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 55 f3 af 8d 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 c0 be 9a fa 65 8b [ 82.626637][ C1] RSP: 0018:ffffc90000a3f6b8 EFLAGS: 00010282 [ 82.626657][ C1] RAX: ffffffff8c1f6ba0 RBX: ffff888027b20120 RCX: ffffffff8c1f8a20 [ 82.626674][ C1] RDX: 0000000000000081 RSI: ffffffff8daff355 RDI: ffffffff8fbc5600 [ 82.626689][ C1] RBP: dffffc0000000000 R08: ffffffff8c1f6bc0 R09: 0000000000000100 [ 82.626715][ C1] R10: 0000000000000100 R11: 0000000000000003 R12: ffffffff8c1f8a20 [ 82.626729][ C1] R13: 0000000000000081 R14: ffffffff8fbc5600 R15: ffff888027b20138 [ 82.626745][ C1] FS: 0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000 [ 82.626763][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.626777][ C1] CR2: 00007fa380a8a6de CR3: 00000000468ea000 CR4: 00000000003526f0 [ 82.626798][ C1] Call Trace: [ 82.626806][ C1] [ 82.626821][ C1] hidg_set_alt+0x12a/0xa50 [ 82.626846][ C1] ? rcu_is_watching+0x15/0xb0 [ 82.626883][ C1] set_config+0x749/0x1160 [ 82.626919][ C1] composite_setup+0x1de7/0x3480 [ 82.626955][ C1] configfs_composite_setup+0xbd/0x100 [ 82.626984][ C1] dummy_timer+0x2f77/0x4d50 [ 82.627018][ C1] ? __pfx_clockevents_program_event+0x10/0x10 [ 82.627053][ C1] ? rtlock_slowlock_locked+0xfb/0x3c20 [ 82.627120][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 82.627162][ C1] ? __pfx_dummy_timer+0x10/0x10 [ 82.627194][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 82.627222][ C1] ? __pfx_dummy_timer+0x10/0x10 [ 82.627249][ C1] __hrtimer_run_queues+0x3eb/0xaf0 [ 82.627307][ C1] hrtimer_run_softirq+0x18f/0x260 [ 82.627344][ C1] handle_softirqs+0x1d9/0x6c0 [ 82.627379][ C1] run_ktimerd+0x69/0x100 [ 82.627408][ C1] smpboot_thread_fn+0x57c/0xa80 [ 82.627439][ C1] ? smpboot_thread_fn+0x4e/0xa80 [ 82.627476][ C1] kthread+0x388/0x470 [ 82.627506][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 82.627530][ C1] ? __pfx_kthread+0x10/0x10 [ 82.627560][ C1] ret_from_fork+0x514/0xb70 [ 82.627595][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 82.627625][ C1] ? __switch_to+0xc89/0x1420 [ 82.627656][ C1] ? __pfx_kthread+0x10/0x10 [ 82.627687][ C1] ret_from_fork_asm+0x1a/0x30 [ 82.627740][ C1] [ 82.627749][ C1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 82.627763][ C1] CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 82.627783][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 82.627793][ C1] Call Trace: [ 82.627800][ C1] [ 82.627808][ C1] vpanic+0x56c/0xa60 [ 82.627839][ C1] ? __pfx__printk+0x10/0x10 [ 82.627859][ C1] ? __pfx_vpanic+0x10/0x10 [ 82.627879][ C1] ? is_bpf_text_address+0x292/0x2b0 [ 82.627895][ C1] ? is_bpf_text_address+0x26/0x2b0 [ 82.627918][ C1] panic+0xc5/0xd0 [ 82.627940][ C1] ? __pfx_panic+0x10/0x10 [ 82.627974][ C1] ? ret_from_fork_asm+0x1a/0x30 [ 82.628004][ C1] __warn+0x315/0x4c0 [ 82.628028][ C1] ? usb_ep_enable+0x148/0x480 [ 82.628051][ C1] ? usb_ep_enable+0x148/0x480 [ 82.628090][ C1] __report_bug+0x276/0x570 [ 82.628116][ C1] ? usb_ep_enable+0x148/0x480 [ 82.628134][ C1] ? __pfx___report_bug+0x10/0x10 [ 82.628177][ C1] report_bug_entry+0x19a/0x290 [ 82.628203][ C1] ? usb_ep_enable+0x1bc/0x480 [ 82.628221][ C1] ? usb_ep_enable+0x1c1/0x480 [ 82.628241][ C1] handle_bug+0xce/0x200 [ 82.628262][ C1] exc_invalid_op+0x1a/0x50 [ 82.628281][ C1] asm_exc_invalid_op+0x1a/0x20 [ 82.628301][ C1] RIP: 0010:usb_ep_enable+0x1bc/0x480 [ 82.628323][ C1] Code: 7a 35 04 fb 49 83 3f 00 48 c7 c0 a0 6b 1f 8c 49 c7 c0 c0 6b 1f 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 55 f3 af 8d 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 c0 be 9a fa 65 8b [ 82.628340][ C1] RSP: 0018:ffffc90000a3f6b8 EFLAGS: 00010282 [ 82.628359][ C1] RAX: ffffffff8c1f6ba0 RBX: ffff888027b20120 RCX: ffffffff8c1f8a20 [ 82.628376][ C1] RDX: 0000000000000081 RSI: ffffffff8daff355 RDI: ffffffff8fbc5600 [ 82.628391][ C1] RBP: dffffc0000000000 R08: ffffffff8c1f6bc0 R09: 0000000000000100 [ 82.628406][ C1] R10: 0000000000000100 R11: 0000000000000003 R12: ffffffff8c1f8a20 [ 82.628417][ C1] R13: 0000000000000081 R14: ffffffff8fbc5600 R15: ffff888027b20138 [ 82.628452][ C1] ? usb_ep_enable+0x12f/0x480 [ 82.628477][ C1] hidg_set_alt+0x12a/0xa50 [ 82.628500][ C1] ? rcu_is_watching+0x15/0xb0 [ 82.628529][ C1] set_config+0x749/0x1160 [ 82.628565][ C1] composite_setup+0x1de7/0x3480 [ 82.628600][ C1] configfs_composite_setup+0xbd/0x100 [ 82.628627][ C1] dummy_timer+0x2f77/0x4d50 [ 82.628659][ C1] ? __pfx_clockevents_program_event+0x10/0x10 [ 82.628695][ C1] ? rtlock_slowlock_locked+0xfb/0x3c20 [ 82.628758][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 82.628798][ C1] ? __pfx_dummy_timer+0x10/0x10 [ 82.628829][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 82.628859][ C1] ? __pfx_dummy_timer+0x10/0x10 [ 82.628886][ C1] __hrtimer_run_queues+0x3eb/0xaf0 [ 82.628935][ C1] hrtimer_run_softirq+0x18f/0x260 [ 82.628969][ C1] handle_softirqs+0x1d9/0x6c0 [ 82.629005][ C1] run_ktimerd+0x69/0x100 [ 82.629034][ C1] smpboot_thread_fn+0x57c/0xa80 [ 82.629064][ C1] ? smpboot_thread_fn+0x4e/0xa80 [ 82.629098][ C1] kthread+0x388/0x470 [ 82.629126][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 82.629152][ C1] ? __pfx_kthread+0x10/0x10 [ 82.629185][ C1] ret_from_fork+0x514/0xb70 [ 82.629217][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 82.629248][ C1] ? __switch_to+0xc89/0x1420 [ 82.629278][ C1] ? __pfx_kthread+0x10/0x10 [ 82.629307][ C1] ret_from_fork_asm+0x1a/0x30 [ 82.629358][ C1] [ 82.629648][ C1] Kernel Offset: disabled