ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor476513395 <...> [ 91.870416][ T31] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.116' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor476513395", ["ci2-upstream-fs/syz-executor476513395"], 0x7ffd181cd570 /* 10 vars */) = 0 brk(NULL) = 0x555567467000 brk(0x555567467d80) = 0x555567467d80 arch_prctl(ARCH_SET_FS, 0x555567467400) = 0 set_tid_address(0x5555674676d0) = 5614 set_robust_list(0x5555674676e0, 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-executor476513395", 4096) = 43 getrandom("\x45\x37\x5a\x1f\x26\xb5\x5f\xa1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555567467d80 brk(0x555567488d80) = 0x555567488d80 brk(0x555567489000) = 0x555567489000 mprotect(0x7fdb4adac000, 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 5615 attached , child_tidptr=0x5555674676d0) = 5615 [pid 5615] set_robust_list(0x5555674676e0, 24) = 0 [pid 5614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5615] setpgid(0, 0) = 0 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5615] write(3, "1000", 4) = 4 [pid 5615] close(3) = 0 [pid 5615] write(1, "executing program\n", 18) = 18 executing program [pid 5615] mkdirat(AT_FDCWD, "./config", 0777) = 0 [pid 5615] mount(NULL, "./config", "configfs", 0, NULL) = 0 [pid 5615] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = 0 [pid 5615] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = 0 [pid 5615] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = 0 [pid 5615] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = 0 [pid 5615] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5615] write(3, "dummy_udc.0", 11) = 11 [pid 5615] exit_group(0) = ? [pid 5615] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5615, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 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 5619 attached , child_tidptr=0x5555674676d0) = 5619 [pid 5619] set_robust_list(0x5555674676e0, 24) = 0 [pid 5614] rt_sigprocmask(SIG_SETMASK, [] [pid 5619] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5614] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5619] setpgid(0, 0) = 0 [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5619] write(3, "1000", 4) = 4 [pid 5619] close(3) = 0 [pid 5619] write(1, "executing program\n", 18) = 18 executing program [pid 5619] mkdirat(AT_FDCWD, "./config", 0777) = -1 EEXIST (File exists) [pid 5619] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5619] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5619] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5619] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [pid 5619] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [pid 5619] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5619] write(3, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5619] exit_group(0) = ? [pid 5619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, 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 5621 attached , child_tidptr=0x5555674676d0) = 5621 [pid 5614] rt_sigprocmask(SIG_SETMASK, [] [pid 5621] set_robust_list(0x5555674676e0, 24) = 0 [pid 5621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5621] setpgid(0, 0) = 0 [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5621] write(3, "1000", 4 [pid 5614] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5621] <... write resumed>) = 4 [pid 5621] close(3) = 0 executing program [pid 5621] write(1, "executing program\n", 18) = 18 [pid 5621] mkdirat(AT_FDCWD, "./config", 0777) = -1 EEXIST (File exists) [pid 5621] mount(NULL, "./config", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5621] mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5621] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1", 0777) = -1 EEXIST (File exists) [pid 5621] mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/hid.usb0", 0777) = -1 EEXIST (File exists) [ 95.322665][ T197] usb 1-1: new high-speed USB device number 2 using dummy_hcd [pid 5621] symlinkat("./config/usb_gadget/g1/functions/hid.usb0", AT_FDCWD, "./config/usb_gadget/g1/configs/c1.1/hid.usb0") = -1 EEXIST (File exists) [pid 5621] openat(AT_FDCWD, "./config/usb_gadget/g1/UDC", O_WRONLY) = 3 [pid 5621] write(3, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5621] exit_group(0) = ? [pid 5621] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, 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 5622 attached , child_tidptr=0x5555674676d0) = 5622 [pid 5622] set_robust_list(0x5555674676e0, 24 [pid 5614] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... set_robust_list resumed>) = 0 [ 95.487636][ T197] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 95.487659][ T197] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 [ 95.487684][ T197] usb 1-1: Dual-Role OTG device on HNP port [ 95.487973][ T197] usb 1-1: New USB device found, idVendor=0000, idProduct=0000, bcdDevice= 7.02 [ 95.487992][ T197] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 95.534741][ C0] ------------[ cut here ]------------ [ 95.534757][ C0] usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0 [ 95.534791][ C0] WARNING: drivers/usb/gadget/udc/core.c:125 at usb_ep_enable+0x148/0x480, CPU#0: ktimers/0/16 [ 95.534918][ C0] Modules linked in: [ 95.534952][ C0] CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 95.534984][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 95.534998][ C0] RIP: 0010:usb_ep_enable+0x1bc/0x480 [ 95.535040][ C0] Code: 4a 17 02 fb 49 83 3f 00 48 c7 c0 60 b3 1f 8c 49 c7 c0 80 b3 1f 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 8b 42 b0 8d 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 40 a4 98 fa 65 8b [ 95.535059][ C0] RSP: 0018:ffffc900001576b8 EFLAGS: 00010286 [ 95.535084][ C0] RAX: ffffffff8c1fb360 RBX: ffff8880261d0120 RCX: ffffffff8c1fd1e0 [ 95.535099][ C0] RDX: 0000000000000081 RSI: ffffffff8db0428b RDI: ffffffff8fbc9d40 [ 95.535114][ C0] RBP: dffffc0000000000 R08: ffffffff8c1fb380 R09: 0000000000000100 [ 95.535127][ C0] R10: 0000000000000100 R11: 0000000000000003 R12: ffffffff8c1fd1e0 [ 95.535140][ C0] R13: 0000000000000081 R14: ffffffff8fbc9d40 R15: ffff8880261d0138 [ 95.535153][ C0] FS: 0000000000000000(0000) GS:ffff888125c41000(0000) knlGS:0000000000000000 [ 95.535169][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.535182][ C0] CR2: 00007ffb418bb5e0 CR3: 0000000037fba000 CR4: 00000000003526f0 [ 95.535200][ C0] Call Trace: [ 95.535212][ C0] [ 95.535230][ C0] hidg_set_alt+0x12a/0xa50 [ 95.535280][ C0] ? rcu_is_watching+0x15/0xb0 [ 95.535367][ C0] set_config+0x749/0x1160 [ 95.535430][ C0] composite_setup+0x1de7/0x3480 [ 95.535466][ C0] configfs_composite_setup+0xbd/0x100 [ 95.535493][ C0] dummy_timer+0x2f77/0x4d50 [ 95.535550][ C0] ? rtlock_slowlock_locked+0xfb/0x3c20 [ 95.535653][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 95.535714][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 95.535745][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 95.535769][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 95.535800][ C0] __hrtimer_run_queues+0x3eb/0xaf0 [ 95.535871][ C0] hrtimer_run_softirq+0x18f/0x260 [ 95.535908][ C0] handle_softirqs+0x1d9/0x6c0 [ 95.535965][ C0] run_ktimerd+0x69/0x100 [ 95.535993][ C0] smpboot_thread_fn+0x57c/0xa80 [ 95.536047][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 95.536085][ C0] kthread+0x388/0x470 [ 95.536123][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 95.536151][ C0] ? __pfx_kthread+0x10/0x10 [ 95.536186][ C0] ret_from_fork+0x514/0xb70 [ 95.536262][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 95.536296][ C0] ? __switch_to+0xc89/0x1420 [ 95.536340][ C0] ? __pfx_kthread+0x10/0x10 [ 95.536370][ C0] ret_from_fork_asm+0x1a/0x30 [ 95.536430][ C0] [ 95.536442][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 95.536459][ C0] CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 95.536481][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 95.536491][ C0] Call Trace: [ 95.536498][ C0] [ 95.536505][ C0] vpanic+0x56c/0xa60 [ 95.536535][ C0] ? __pfx__printk+0x10/0x10 [ 95.536553][ C0] ? __pfx_vpanic+0x10/0x10 [ 95.536566][ C0] ? is_bpf_text_address+0x292/0x2b0 [ 95.536605][ C0] ? is_bpf_text_address+0x26/0x2b0 [ 95.536630][ C0] panic+0xc5/0xd0 [ 95.536644][ C0] ? __pfx_panic+0x10/0x10 [ 95.536667][ C0] ? ret_from_fork_asm+0x1a/0x30 [ 95.536687][ C0] __warn+0x315/0x4c0 [ 95.536702][ C0] ? usb_ep_enable+0x148/0x480 [ 95.536726][ C0] ? usb_ep_enable+0x148/0x480 [ 95.536744][ C0] __report_bug+0x276/0x570 [ 95.536789][ C0] ? usb_ep_enable+0x148/0x480 [ 95.536810][ C0] ? __pfx___report_bug+0x10/0x10 [ 95.536845][ C0] report_bug_entry+0x19a/0x290 [ 95.536867][ C0] ? usb_ep_enable+0x1bc/0x480 [ 95.536884][ C0] ? usb_ep_enable+0x1c1/0x480 [ 95.536902][ C0] handle_bug+0xce/0x200 [ 95.536930][ C0] exc_invalid_op+0x1a/0x50 [ 95.536951][ C0] asm_exc_invalid_op+0x1a/0x20 [ 95.536984][ C0] RIP: 0010:usb_ep_enable+0x1bc/0x480 [ 95.537110][ C0] Code: 4a 17 02 fb 49 83 3f 00 48 c7 c0 60 b3 1f 8c 49 c7 c0 80 b3 1f 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 8b 42 b0 8d 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 40 a4 98 fa 65 8b [ 95.537125][ C0] RSP: 0018:ffffc900001576b8 EFLAGS: 00010286 [ 95.537152][ C0] RAX: ffffffff8c1fb360 RBX: ffff8880261d0120 RCX: ffffffff8c1fd1e0 [ 95.537166][ C0] RDX: 0000000000000081 RSI: ffffffff8db0428b RDI: ffffffff8fbc9d40 [ 95.537180][ C0] RBP: dffffc0000000000 R08: ffffffff8c1fb380 R09: 0000000000000100 [ 95.537192][ C0] R10: 0000000000000100 R11: 0000000000000003 R12: ffffffff8c1fd1e0 [ 95.537206][ C0] R13: 0000000000000081 R14: ffffffff8fbc9d40 R15: ffff8880261d0138 [ 95.537239][ C0] ? usb_ep_enable+0x12f/0x480 [ 95.537264][ C0] hidg_set_alt+0x12a/0xa50 [ 95.537289][ C0] ? rcu_is_watching+0x15/0xb0 [ 95.537320][ C0] set_config+0x749/0x1160 [ 95.537358][ C0] composite_setup+0x1de7/0x3480 [ 95.537393][ C0] configfs_composite_setup+0xbd/0x100 [ 95.537419][ C0] dummy_timer+0x2f77/0x4d50 [ 95.537464][ C0] ? rtlock_slowlock_locked+0xfb/0x3c20 [ 95.537514][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 95.537552][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 95.537580][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 95.537604][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 95.537629][ C0] __hrtimer_run_queues+0x3eb/0xaf0 [ 95.537686][ C0] hrtimer_run_softirq+0x18f/0x260 [ 95.537723][ C0] handle_softirqs+0x1d9/0x6c0 [ 95.537762][ C0] run_ktimerd+0x69/0x100 [ 95.537791][ C0] smpboot_thread_fn+0x57c/0xa80 [ 95.537824][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 95.537862][ C0] kthread+0x388/0x470 [ 95.537893][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 95.537921][ C0] ? __pfx_kthread+0x10/0x10 [ 95.537955][ C0] ret_from_fork+0x514/0xb70 [ 95.537991][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 95.538032][ C0] ? __switch_to+0xc89/0x1420 [ 95.538067][ C0] ? __pfx_kthread+0x10/0x10 [ 95.538098][ C0] ret_from_fork_asm+0x1a/0x30 [ 95.538139][ C0] [ 95.538440][ C0] Kernel Offset: disabled