ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor386097103 <...> Warning: Permanently added '10.128.1.78' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor386097103", ["ci2-upstream-fs/syz-executor386097103"], 0x7ffee7f86b30 /* 10 vars */) = 0 brk(NULL) = 0x555563c9e000 brk(0x555563c9ed80) = 0x555563c9ed80 arch_prctl(ARCH_SET_FS, 0x555563c9e400) = 0 set_tid_address(0x555563c9e6d0) = 5596 set_robust_list(0x555563c9e6e0, 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-executor386097103", 4096) = 43 getrandom("\xa5\x9c\x73\x22\x5f\x8c\x12\x9b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555563c9ed80 brk(0x555563cbfd80) = 0x555563cbfd80 brk(0x555563cc0000) = 0x555563cc0000 mprotect(0x7fe4569b1000, 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|SIGCHLD, child_tidptr=0x555563c9e6d0) = 5597 ci2-upstream-fs/strace-static-x86_64: Process 5597 attached [pid 5596] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5597] set_robust_list(0x555563c9e6e0, 24) = 0 [pid 5597] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5597] setpgid(0, 0) = 0 [pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5597] write(3, "1000", 4) = 4 [pid 5597] close(3) = 0 [pid 5597] write(1, "executing program\n", 18) = 18 executing program [pid 5597] mkdirat(AT_FDCWD, "./config", 0777) = 0 [pid 5597] mount(NULL, "./config", "configfs", 0, NULL) = 0 [pid 5597] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = 0 [pid 5597] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = 0 [pid 5597] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = 0 [pid 5597] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = 0 [pid 5597] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5597] write(3, "dummy_udc.0", 11) = 11 [pid 5597] exit_group(0) = ? [pid 5597] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5597, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 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 5601 attached , child_tidptr=0x555563c9e6d0) = 5601 [pid 5596] rt_sigprocmask(SIG_SETMASK, [] [pid 5601] set_robust_list(0x555563c9e6e0, 24 [pid 5596] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5601] <... set_robust_list resumed>) = 0 [pid 5601] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5601] setpgid(0, 0) = 0 [pid 5601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5601] write(3, "1000", 4) = 4 [pid 5601] close(3) = 0 executing program [pid 5601] write(1, "executing program\n", 18) = 18 [pid 5601] mkdirat(AT_FDCWD, "./config", 0777) = -1 EEXIST (File exists) [pid 5601] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5601] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5601] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5601] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [pid 5601] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [pid 5601] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5601] write(3, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5601] exit_group(0) = ? [pid 5601] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5601, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 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 5602 attached [pid 5602] set_robust_list(0x555563c9e6e0, 24 [pid 5596] <... clone resumed>, child_tidptr=0x555563c9e6d0) = 5602 [pid 5602] <... set_robust_list resumed>) = 0 [pid 5596] rt_sigprocmask(SIG_SETMASK, [] [pid 5602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5602] setpgid(0, 0 [pid 5596] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5602] <... setpgid resumed>) = 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) = -1 EEXIST (File exists) [pid 5602] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5602] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5602] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5602] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [pid 5602] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [pid 5602] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5602] write(3, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [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=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 5603 attached , child_tidptr=0x555563c9e6d0) = 5603 syzkaller login: [ 83.163537][ T10] usb 1-1: new high-speed USB device number 2 using dummy_hcd [pid 5596] rt_sigprocmask(SIG_SETMASK, [] [pid 5603] set_robust_list(0x555563c9e6e0, 24 [pid 5596] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5603] <... set_robust_list resumed>) = 0 [pid 5603] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5603] setpgid(0, 0) = 0 [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5603] write(3, "1000", 4) = 4 [pid 5603] close(3) = 0 executing program [pid 5603] write(1, "executing program\n", 18) = 18 [pid 5603] mkdirat(AT_FDCWD, "./config", 0777) = -1 EEXIST (File exists) [pid 5603] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5603] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5603] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5603] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [pid 5603] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [pid 5603] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5603] write(3, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5603] exit_group(0) = ? [pid 5603] +++ exited with 0 +++ [ 83.326299][ T10] usb 1-1: New USB device found, idVendor=0000, idProduct=0000, bcdDevice= 7.02 [ 83.331392][ T10] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 83.331420][ T10] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 [ 83.331452][ T10] usb 1-1: Dual-Role OTG device on HNP port [ 83.333844][ T10] usb 1-1: [ 83.333844][ T10] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 83.366090][ C0] ------------[ cut here ]------------ [ 83.366105][ C0] usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0 [ 83.366130][ C0] WARNING: drivers/usb/gadget/udc/core.c:125 at usb_ep_enable+0x148/0x480, CPU#0: ktimers/0/16 [ 83.366191][ C0] Modules linked in: [ 83.366232][ C0] CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 83.366260][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 83.366274][ C0] RIP: 0010:usb_ep_enable+0x1bc/0x480 [ 83.366297][ C0] Code: 2a 29 04 fb 49 83 3f 00 48 c7 c0 20 6b 1f 8c 49 c7 c0 40 6b 1f 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 8c 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 70 b2 9a fa 65 8b [ 83.366315][ C0] RSP: 0018:ffffc900001576b8 EFLAGS: 00010286 [ 83.366332][ C0] RAX: ffffffff8c1f6b20 RBX: ffff888027288120 RCX: ffffffff8c1f89a0 [ 83.366349][ C0] RDX: 0000000000000081 RSI: ffffffff8daff38c RDI: ffffffff8fbc5500 [ 83.366364][ C0] RBP: dffffc0000000000 R08: ffffffff8c1f6b40 R09: 0000000000000100 [ 83.366379][ C0] R10: 0000000000000100 R11: 0000000000000003 R12: ffffffff8c1f89a0 [ 83.366392][ C0] R13: 0000000000000081 R14: ffffffff8fbc5500 R15: ffff888027288138 [ 83.366407][ C0] FS: 0000000000000000(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000 [ 83.366425][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.366439][ C0] CR2: 00007ffcf92b6fe0 CR3: 0000000046ca4000 CR4: 00000000003526f0 [ 83.366462][ C0] Call Trace: [ 83.366469][ C0] [ 83.366483][ C0] hidg_set_alt+0x12a/0xa50 [ 83.366507][ C0] ? rcu_is_watching+0x15/0xb0 [ 83.366543][ C0] set_config+0x749/0x1160 [ 83.366587][ C0] composite_setup+0x1de7/0x3480 [ 83.366623][ C0] configfs_composite_setup+0xbd/0x100 [ 83.366651][ C0] dummy_timer+0x2f77/0x4d50 [ 83.366686][ C0] ? __pfx_clockevents_program_event+0x10/0x10 [ 83.366722][ C0] ? rtlock_slowlock_locked+0xfb/0x3c20 [ 83.366809][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 83.366852][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 83.366883][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 83.366914][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 83.366942][ C0] __hrtimer_run_queues+0x3eb/0xaf0 [ 83.366993][ C0] hrtimer_run_softirq+0x18f/0x260 [ 83.367028][ C0] handle_softirqs+0x1d9/0x6c0 [ 83.367065][ C0] run_ktimerd+0x69/0x100 [ 83.367092][ C0] smpboot_thread_fn+0x57c/0xa80 [ 83.367121][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 83.367156][ C0] kthread+0x388/0x470 [ 83.367186][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 83.367211][ C0] ? __pfx_kthread+0x10/0x10 [ 83.367241][ C0] ret_from_fork+0x514/0xb70 [ 83.367276][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 83.367307][ C0] ? __switch_to+0xc89/0x1420 [ 83.367335][ C0] ? __pfx_kthread+0x10/0x10 [ 83.367363][ C0] ret_from_fork_asm+0x1a/0x30 [ 83.367410][ C0] [ 83.367422][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 83.367438][ C0] CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 83.367461][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 83.367473][ C0] Call Trace: [ 83.367481][ C0] [ 83.367489][ C0] vpanic+0x56c/0xa60 [ 83.367520][ C0] ? __pfx__printk+0x10/0x10 [ 83.367543][ C0] ? __pfx_vpanic+0x10/0x10 [ 83.367579][ C0] ? is_bpf_text_address+0x292/0x2b0 [ 83.367602][ C0] ? is_bpf_text_address+0x26/0x2b0 [ 83.367635][ C0] panic+0xc5/0xd0 [ 83.367666][ C0] ? __pfx_panic+0x10/0x10 [ 83.367707][ C0] ? ret_from_fork_asm+0x1a/0x30 [ 83.367745][ C0] __warn+0x315/0x4c0 [ 83.367775][ C0] ? usb_ep_enable+0x148/0x480 [ 83.367800][ C0] ? usb_ep_enable+0x148/0x480 [ 83.367822][ C0] __report_bug+0x276/0x570 [ 83.367859][ C0] ? usb_ep_enable+0x148/0x480 [ 83.367883][ C0] ? __pfx___report_bug+0x10/0x10 [ 83.367935][ C0] report_bug_entry+0x19a/0x290 [ 83.367967][ C0] ? usb_ep_enable+0x1bc/0x480 [ 83.367987][ C0] ? usb_ep_enable+0x1c1/0x480 [ 83.368008][ C0] handle_bug+0xce/0x200 [ 83.368028][ C0] exc_invalid_op+0x1a/0x50 [ 83.368049][ C0] asm_exc_invalid_op+0x1a/0x20 [ 83.368069][ C0] RIP: 0010:usb_ep_enable+0x1bc/0x480 [ 83.368093][ C0] Code: 2a 29 04 fb 49 83 3f 00 48 c7 c0 20 6b 1f 8c 49 c7 c0 40 6b 1f 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 8c 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 70 b2 9a fa 65 8b [ 83.368110][ C0] RSP: 0018:ffffc900001576b8 EFLAGS: 00010286 [ 83.368127][ C0] RAX: ffffffff8c1f6b20 RBX: ffff888027288120 RCX: ffffffff8c1f89a0 [ 83.368143][ C0] RDX: 0000000000000081 RSI: ffffffff8daff38c RDI: ffffffff8fbc5500 [ 83.368158][ C0] RBP: dffffc0000000000 R08: ffffffff8c1f6b40 R09: 0000000000000100 [ 83.368174][ C0] R10: 0000000000000100 R11: 0000000000000003 R12: ffffffff8c1f89a0 [ 83.368188][ C0] R13: 0000000000000081 R14: ffffffff8fbc5500 R15: ffff888027288138 [ 83.368221][ C0] ? usb_ep_enable+0x12f/0x480 [ 83.368247][ C0] hidg_set_alt+0x12a/0xa50 [ 83.368268][ C0] ? rcu_is_watching+0x15/0xb0 [ 83.368299][ C0] set_config+0x749/0x1160 [ 83.368335][ C0] composite_setup+0x1de7/0x3480 [ 83.368371][ C0] configfs_composite_setup+0xbd/0x100 [ 83.368399][ C0] dummy_timer+0x2f77/0x4d50 [ 83.368433][ C0] ? __pfx_clockevents_program_event+0x10/0x10 [ 83.368468][ C0] ? rtlock_slowlock_locked+0xfb/0x3c20 [ 83.368525][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 83.368570][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 83.368602][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 83.368632][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 83.368660][ C0] __hrtimer_run_queues+0x3eb/0xaf0 [ 83.368710][ C0] hrtimer_run_softirq+0x18f/0x260 [ 83.368745][ C0] handle_softirqs+0x1d9/0x6c0 [ 83.368781][ C0] run_ktimerd+0x69/0x100 [ 83.368809][ C0] smpboot_thread_fn+0x57c/0xa80 [ 83.368837][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 83.368872][ C0] kthread+0x388/0x470 [ 83.368902][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 83.368926][ C0] ? __pfx_kthread+0x10/0x10 [ 83.368957][ C0] ret_from_fork+0x514/0xb70 [ 83.368991][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 83.369022][ C0] ? __switch_to+0xc89/0x1420 [ 83.369051][ C0] ? __pfx_kthread+0x10/0x10 [ 83.369082][ C0] ret_from_fork_asm+0x1a/0x30 [ 83.369132][ C0] [ 83.369409][ C0] Kernel Offset: disabled