ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor3007175964 <...> Warning: Permanently added '10.128.1.149' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor3007175964", ["ci2-upstream-fs/syz-executor3007175964"], 0x7ffce4c422c0 /* 10 vars */) = 0 brk(NULL) = 0x55558ec2b000 brk(0x55558ec2bd80) = 0x55558ec2bd80 arch_prctl(ARCH_SET_FS, 0x55558ec2b400) = 0 set_tid_address(0x55558ec2b6d0) = 5618 set_robust_list(0x55558ec2b6e0, 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-executor3007175964", 4096) = 44 getrandom("\x2c\x60\x80\xfa\x1d\xb2\x03\x98", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558ec2bd80 brk(0x55558ec4cd80) = 0x55558ec4cd80 brk(0x55558ec4d000) = 0x55558ec4d000 mprotect(0x7f63f745c000, 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 5619 attached , child_tidptr=0x55558ec2b6d0) = 5619 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5619] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 executing program [pid 5619] <... set_robust_list resumed>) = 0 [pid 5619] rt_sigprocmask(SIG_SETMASK, [], 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 [pid 5619] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5619] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5619] exit_group(0) = ? [ 80.630025][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0001/input/input5 [ 80.723950][ T9] rc_core: IR keymap rc-rc6-mce not found [ 80.728593][ T9] Registered IR keymap rc-empty [ 80.739490][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0001/rc/rc0 [ 80.743508][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0001/rc/rc0/input6 [ 80.756610][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 80.756625][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 80.756648][ T9] preempt_count: 0, expected: 0 [ 80.756657][ T9] RCU nest depth: 1, expected: 0 [ 80.756670][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 80.756684][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 80.756766][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 80.756817][ T9] #2: ffff88802c51da90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 80.756871][ T9] #3: ffff8880415451a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 80.756924][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 80.756993][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 80.757014][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 80.757024][ T9] Workqueue: events uhid_device_add_worker [ 80.757061][ T9] Call Trace: [ 80.757068][ T9] [ 80.757076][ T9] dump_stack_lvl+0xe8/0x150 [ 80.757104][ T9] __might_resched+0x31b/0x470 [ 80.757135][ T9] __kmalloc_noprof+0xec/0x790 [ 80.757158][ T9] ? rt_spin_unlock+0x165/0x200 [ 80.757181][ T9] ? __hid_request+0xb2/0x490 [ 80.757201][ T9] ? __hid_request+0xb2/0x490 [ 80.757224][ T9] ? __wake_up_common_lock+0x190/0x1f0 [ 80.757249][ T9] __hid_request+0xb2/0x490 [ 80.757279][ T9] picolcd_set_contrast+0x200/0x2f0 [ 80.757308][ T9] picolcd_init_lcd+0x1f9/0x2f0 [ 80.757336][ T9] picolcd_probe+0xbae/0x16c0 [ 80.757365][ T9] hid_device_probe+0x46a/0x870 [ 80.757399][ T9] ? __pfx_hid_device_probe+0x10/0x10 [ 80.757422][ T9] really_probe+0x254/0xae0 [ 80.757451][ T9] __driver_probe_device+0x1e8/0x360 [ 80.757478][ T9] driver_probe_device+0x4f/0x240 [ 80.757504][ T9] __device_attach_driver+0x270/0x410 [ 80.757533][ T9] bus_for_each_drv+0x25b/0x2f0 [ 80.757552][ T9] ? __pfx___device_attach_driver+0x10/0x10 [ 80.757576][ T9] ? __pfx_bus_for_each_drv+0x10/0x10 [ 80.757595][ T9] ? rt_spin_unlock+0x165/0x200 [ 80.757628][ T9] __device_attach+0x2c7/0x450 [ 80.757660][ T9] ? __pfx___device_attach+0x10/0x10 [ 80.757683][ T9] ? rt_spin_unlock+0x165/0x200 [ 80.757715][ T9] device_initial_probe+0xa1/0xd0 [ 80.757741][ T9] bus_probe_device+0x12d/0x220 [ 80.757763][ T9] device_add+0x7d7/0xb80 [ 80.757788][ T9] hid_add_device+0x272/0x3e0 [ 80.757810][ T9] ? uhid_device_add_worker+0x1e/0xf0 [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=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 5626 attached [ 80.757835][ T9] ? process_scheduled_works+0x97a/0x1630 [ 80.757860][ T9] uhid_device_add_worker+0x43/0xf0 [ 80.757887][ T9] process_scheduled_works+0xc3d/0x1630 [ 80.757943][ T9] ? __pfx_process_scheduled_works+0x10/0x10 [ 80.757978][ T9] ? assign_work+0x3cf/0x5d0 [ 80.758007][ T9] worker_thread+0xa47/0xfb0 [ 80.758057][ T9] kthread+0x38b/0x470 [ 80.758077][ T9] ? __pfx_worker_thread+0x10/0x10 [ 80.758099][ T9] ? __pfx_kthread+0x10/0x10 [ 80.758120][ T9] ret_from_fork+0x514/0xb70 , child_tidptr=0x55558ec2b6d0) = 5626 [pid 5626] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] <... set_robust_list resumed>) = 0 [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5626] setpgid(0, 0) = 0 [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5626] write(3, "1000", 4) = 4 [pid 5626] close(3) = 0 [pid 5626] write(1, "executing program\n", 18) = 18 executing program [pid 5626] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5626] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5626] exit_group(0) = ? [ 80.758142][ T9] ? __pfx_ret_from_fork+0x10/0x10 [ 80.758161][ T9] ? __switch_to+0xc89/0x1420 [ 80.758189][ T9] ? __pfx_kthread+0x10/0x10 [ 80.758209][ T9] ret_from_fork_asm+0x1a/0x30 [ 80.758245][ T9] [ 80.762465][ T9] hid-picolcd 0003:04D8:C002.0001: No report with id 0x94 found [ 80.762484][ T9] hid-picolcd 0003:04D8:C002.0001: failed to configure display [ 81.121739][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0002/input/input7 [ 81.193103][ T9] rc_core: IR keymap rc-rc6-mce not found [ 81.193170][ T9] Registered IR keymap rc-empty [ 81.194458][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0002/rc/rc0 [ 81.214501][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0002/rc/rc0/input8 [ 81.221761][ T9] hid-picolcd 0003:04D8:C002.0002: No report with id 0x94 found [ 81.221780][ T9] hid-picolcd 0003:04D8:C002.0002: failed to configure display [pid 5626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5626, 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 5629 attached [pid 5629] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... clone resumed>, child_tidptr=0x55558ec2b6d0) = 5629 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5629] setpgid(0, 0) = 0 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5629] write(3, "1000", 4) = 4 [pid 5629] close(3) = 0 executing program [pid 5629] write(1, "executing program\n", 18) = 18 [pid 5629] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5629] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5629] exit_group(0) = ? [ 81.437364][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0003/input/input9 [ 81.503937][ T9] rc_core: IR keymap rc-rc6-mce not found [ 81.503989][ T9] Registered IR keymap rc-empty [ 81.506905][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0003/rc/rc0 [ 81.509356][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0003/rc/rc0/input10 [ 81.521517][ T9] hid-picolcd 0003:04D8:C002.0003: No report with id 0x94 found [ 81.521537][ T9] hid-picolcd 0003:04D8:C002.0003: failed to configure display [pid 5629] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5629, si_uid=0, si_status=0, si_utime=0, si_stime=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 5633 attached , child_tidptr=0x55558ec2b6d0) = 5633 [pid 5633] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] <... set_robust_list resumed>) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5633] setpgid(0, 0) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5633] write(3, "1000", 4) = 4 [pid 5633] close(3) = 0 [pid 5633] write(1, "executing program\n", 18) = 18 executing program [pid 5633] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5633] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5633] exit_group(0) = ? [ 81.762190][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0004/input/input11 [ 81.843144][ T9] rc_core: IR keymap rc-rc6-mce not found [ 81.843195][ T9] Registered IR keymap rc-empty [ 81.844480][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0004/rc/rc0 [ 81.854156][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0004/rc/rc0/input12 [ 81.880825][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 81.884689][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 81.884708][ T9] preempt_count: 0, expected: 0 [ 81.884717][ T9] RCU nest depth: 1, expected: 0 [ 81.884726][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 81.884739][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 81.884799][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 81.884849][ T9] #2: ffff88803d36da90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 81.884898][ T9] #3: ffff88803a50a1a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 81.884951][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 81.885019][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 81.885042][ T9] Tainted: [W]=WARN [ 81.885048][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 81.885058][ T9] Workqueue: events uhid_device_add_worker [ 81.885085][ T9] Call Trace: [ 81.885092][ T9] [ 81.885100][ T9] dump_stack_lvl+0xe8/0x150 [ 81.885129][ T9] __might_resched+0x31b/0x470 [ 81.885159][ T9] __kmalloc_noprof+0xec/0x790 [ 81.885182][ T9] ? rt_spin_unlock+0x165/0x200 [ 81.885206][ T9] ? __hid_request+0xb2/0x490 [ 81.885226][ T9] ? __hid_request+0xb2/0x490 [ 81.885248][ T9] ? __wake_up_common_lock+0x190/0x1f0 [ 81.885273][ T9] __hid_request+0xb2/0x490 [pid 5633] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [ 81.885303][ T9] picolcd_set_contrast+0x200/0x2f0 [ 81.885333][ T9] picolcd_init_lcd+0x1f9/0x2f0 [ 81.885361][ T9] picolcd_probe+0xbae/0x16c0 [ 81.885389][ T9] hid_device_probe+0x46a/0x870 [ 81.885424][ T9] ? __pfx_hid_device_probe+0x10/0x10 [ 81.885447][ T9] really_probe+0x254/0xae0 [ 81.885475][ T9] __driver_probe_device+0x1e8/0x360 [ 81.885501][ T9] driver_probe_device+0x4f/0x240 [ 81.885529][ T9] __device_attach_driver+0x270/0x410 [ 81.885557][ T9] bus_for_each_drv+0x25b/0x2f0 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 5636 attached , child_tidptr=0x55558ec2b6d0) = 5636 [pid 5636] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5636] <... set_robust_list resumed>) = 0 [pid 5636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5636] setpgid(0, 0) = 0 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5636] write(3, "1000", 4) = 4 [pid 5636] close(3) = 0 executing program [pid 5636] write(1, "executing program\n", 18) = 18 [pid 5636] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [ 81.885576][ T9] ? __pfx___device_attach_driver+0x10/0x10 [ 81.885600][ T9] ? __pfx_bus_for_each_drv+0x10/0x10 [ 81.885619][ T9] ? rt_spin_unlock+0x165/0x200 [ 81.885652][ T9] __device_attach+0x2c7/0x450 [ 81.885677][ T9] ? __pfx___device_attach+0x10/0x10 [ 81.885700][ T9] ? rt_spin_unlock+0x165/0x200 [ 81.885735][ T9] device_initial_probe+0xa1/0xd0 [ 81.885760][ T9] bus_probe_device+0x12d/0x220 [ 81.885783][ T9] device_add+0x7d7/0xb80 [ 81.885808][ T9] hid_add_device+0x272/0x3e0 [pid 5636] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5636] exit_group(0) = ? [ 81.885830][ T9] ? uhid_device_add_worker+0x1e/0xf0 [ 81.885855][ T9] ? process_scheduled_works+0x97a/0x1630 [ 81.885879][ T9] uhid_device_add_worker+0x43/0xf0 [ 81.885906][ T9] process_scheduled_works+0xc3d/0x1630 [ 81.885970][ T9] ? __pfx_process_scheduled_works+0x10/0x10 [ 81.886000][ T9] ? assign_work+0x3cf/0x5d0 [ 81.886029][ T9] worker_thread+0xa47/0xfb0 [ 81.886082][ T9] kthread+0x38b/0x470 [ 81.886101][ T9] ? __pfx_worker_thread+0x10/0x10 [ 81.886123][ T9] ? __pfx_kthread+0x10/0x10 [ 81.886144][ T9] ret_from_fork+0x514/0xb70 [ 81.886166][ T9] ? __pfx_ret_from_fork+0x10/0x10 [ 81.886185][ T9] ? __switch_to+0xc89/0x1420 [ 81.886213][ T9] ? __pfx_kthread+0x10/0x10 [ 81.886233][ T9] ret_from_fork_asm+0x1a/0x30 [ 81.886268][ T9] [ 81.890660][ T9] hid-picolcd 0003:04D8:C002.0004: No report with id 0x94 found [ 81.890679][ T9] hid-picolcd 0003:04D8:C002.0004: failed to configure display [ 82.177109][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0005/input/input13 [ 82.293129][ T9] rc_core: IR keymap rc-rc6-mce not found [ 82.293188][ T9] Registered IR keymap rc-empty [ 82.294498][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0005/rc/rc0 [ 82.307969][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0005/rc/rc0/input14 [ 82.332173][ T9] hid-picolcd 0003:04D8:C002.0005: No report with id 0x94 found [ 82.332580][ T9] hid-picolcd 0003:04D8:C002.0005: failed to configure display [pid 5636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5636, 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 5639 attached , child_tidptr=0x55558ec2b6d0) = 5639 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5639] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5639] <... set_robust_list resumed>) = 0 [pid 5639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5639] setpgid(0, 0) = 0 [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5639] write(3, "1000", 4) = 4 [pid 5639] close(3) = 0 [pid 5639] write(1, "executing program\n", 18) = 18 executing program [pid 5639] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5639] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5639] exit_group(0) = ? [ 82.507533][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0006/input/input15 [ 82.573110][ T31] rc_core: IR keymap rc-rc6-mce not found [ 82.578950][ T31] Registered IR keymap rc-empty [ 82.579762][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0006/rc/rc0 [ 82.598335][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0006/rc/rc0/input16 [ 82.619936][ T31] hid-picolcd 0003:04D8:C002.0006: No report with id 0x94 found [ 82.621449][ T31] hid-picolcd 0003:04D8:C002.0006: failed to configure display [pid 5639] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, 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 5642 attached , child_tidptr=0x55558ec2b6d0) = 5642 [pid 5642] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5642] <... set_robust_list resumed>) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5642] setpgid(0, 0) = 0 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5642] write(3, "1000", 4) = 4 [pid 5642] close(3) = 0 [pid 5642] write(1, "executing program\n", 18) = 18 executing program [pid 5642] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5642] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5642] exit_group(0) = ? [ 82.835642][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0007/input/input17 [ 82.903091][ T9] rc_core: IR keymap rc-rc6-mce not found [ 82.903151][ T9] Registered IR keymap rc-empty [ 82.910413][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0007/rc/rc0 [ 82.918969][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0007/rc/rc0/input18 [ 82.933275][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 82.935448][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 82.935467][ T9] preempt_count: 0, expected: 0 [ 82.935477][ T9] RCU nest depth: 1, expected: 0 [ 82.935487][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 82.935500][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 82.935560][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 82.935612][ T9] #2: ffff8880467f1a90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 82.935662][ T9] #3: ffff88803840e9a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 82.935715][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 82.935774][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 82.935798][ T9] Tainted: [W]=WARN [ 82.935805][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 82.935816][ T9] Workqueue: events uhid_device_add_worker [ 82.935841][ T9] Call Trace: [ 82.935849][ T9] [ 82.935857][ T9] dump_stack_lvl+0xe8/0x150 [ 82.935885][ T9] __might_resched+0x31b/0x470 [ 82.935925][ T9] __kmalloc_noprof+0xec/0x790 [ 82.935947][ T9] ? rt_spin_unlock+0x165/0x200 [ 82.935970][ T9] ? __hid_request+0xb2/0x490 [ 82.935991][ T9] ? __hid_request+0xb2/0x490 [ 82.936017][ T9] ? __wake_up_common_lock+0x190/0x1f0 [ 82.936041][ T9] __hid_request+0xb2/0x490 [ 82.936071][ T9] picolcd_set_contrast+0x200/0x2f0 [pid 5642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5642, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- 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 5645 attached [ 82.936101][ T9] picolcd_init_lcd+0x1f9/0x2f0 [ 82.936130][ T9] picolcd_probe+0xbae/0x16c0 [ 82.936158][ T9] hid_device_probe+0x46a/0x870 [ 82.936193][ T9] ? __pfx_hid_device_probe+0x10/0x10 [ 82.936216][ T9] really_probe+0x254/0xae0 [ 82.936245][ T9] __driver_probe_device+0x1e8/0x360 [ 82.936271][ T9] driver_probe_device+0x4f/0x240 [ 82.936299][ T9] __device_attach_driver+0x270/0x410 [ 82.936328][ T9] bus_for_each_drv+0x25b/0x2f0 [ 82.936347][ T9] ? __pfx___device_attach_driver+0x10/0x10 , child_tidptr=0x55558ec2b6d0) = 5645 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] <... set_robust_list resumed>) = 0 [pid 5645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5645] setpgid(0, 0) = 0 [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5645] write(3, "1000", 4) = 4 [pid 5645] close(3) = 0 [pid 5645] write(1, "executing program\n", 18) = 18 executing program [pid 5645] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5645] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5645] exit_group(0) = ? [ 82.936371][ T9] ? __pfx_bus_for_each_drv+0x10/0x10 [ 82.936390][ T9] ? rt_spin_unlock+0x165/0x200 [ 82.936423][ T9] __device_attach+0x2c7/0x450 [ 82.936449][ T9] ? __pfx___device_attach+0x10/0x10 [ 82.936472][ T9] ? rt_spin_unlock+0x165/0x200 [ 82.936504][ T9] device_initial_probe+0xa1/0xd0 [ 82.936529][ T9] bus_probe_device+0x12d/0x220 [ 82.936552][ T9] device_add+0x7d7/0xb80 [ 82.936577][ T9] hid_add_device+0x272/0x3e0 [ 82.936599][ T9] ? uhid_device_add_worker+0x1e/0xf0 [ 82.936624][ T9] ? process_scheduled_works+0x97a/0x1630 [ 82.936649][ T9] uhid_device_add_worker+0x43/0xf0 [ 82.936675][ T9] process_scheduled_works+0xc3d/0x1630 [ 82.936732][ T9] ? __pfx_process_scheduled_works+0x10/0x10 [ 82.936764][ T9] ? assign_work+0x3cf/0x5d0 [ 82.936792][ T9] worker_thread+0xa47/0xfb0 [ 82.936846][ T9] kthread+0x38b/0x470 [ 82.936865][ T9] ? __pfx_worker_thread+0x10/0x10 [ 82.936887][ T9] ? __pfx_kthread+0x10/0x10 [ 82.936914][ T9] ret_from_fork+0x514/0xb70 [ 82.936937][ T9] ? __pfx_ret_from_fork+0x10/0x10 [ 82.936956][ T9] ? __switch_to+0xc89/0x1420 [ 82.936985][ T9] ? __pfx_kthread+0x10/0x10 [ 82.937005][ T9] ret_from_fork_asm+0x1a/0x30 [ 82.937040][ T9] [ 82.951151][ T9] hid-picolcd 0003:04D8:C002.0007: No report with id 0x94 found [ 82.951170][ T9] hid-picolcd 0003:04D8:C002.0007: failed to configure display [ 83.216800][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0008/input/input19 [ 83.323131][ T9] rc_core: IR keymap rc-rc6-mce not found [ 83.323195][ T9] Registered IR keymap rc-empty [ 83.329978][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0008/rc/rc0 [ 83.350086][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0008/rc/rc0/input20 [ 83.362531][ T9] hid-picolcd 0003:04D8:C002.0008: No report with id 0x94 found [ 83.362589][ T9] hid-picolcd 0003:04D8:C002.0008: failed to configure display [pid 5645] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=0, si_stime=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 5649 attached , child_tidptr=0x55558ec2b6d0) = 5649 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5649] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5649] setpgid(0, 0) = 0 executing program [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5649] write(3, "1000", 4) = 4 [pid 5649] close(3) = 0 [pid 5649] write(1, "executing program\n", 18) = 18 [pid 5649] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5649] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5649] exit_group(0) = ? [ 83.535908][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0009/input/input21 [ 83.603121][ T31] rc_core: IR keymap rc-rc6-mce not found [ 83.604631][ T31] Registered IR keymap rc-empty [ 83.605441][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0009/rc/rc0 [ 83.626609][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0009/rc/rc0/input22 [ 83.644579][ T31] hid-picolcd 0003:04D8:C002.0009: No report with id 0x94 found [ 83.652314][ T31] hid-picolcd 0003:04D8:C002.0009: failed to configure display [pid 5649] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5649, 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 5652 attached , child_tidptr=0x55558ec2b6d0) = 5652 [pid 5652] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5652] setpgid(0, 0) = 0 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5652] write(3, "1000", 4) = 4 [pid 5652] close(3) = 0 [pid 5652] write(1, "executing program\n", 18) = 18 executing program [pid 5652] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5652] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5652] exit_group(0) = ? [ 83.852008][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000A/input/input23 [ 83.923109][ T31] rc_core: IR keymap rc-rc6-mce not found [ 83.928927][ T31] Registered IR keymap rc-empty [ 83.929733][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000A/rc/rc0 [ 83.948569][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000A/rc/rc0/input24 [ 83.963606][ T31] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 83.975138][ T31] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 31, name: kworker/1:0 [ 83.975158][ T31] preempt_count: 0, expected: 0 [ 83.975168][ T31] RCU nest depth: 1, expected: 0 [ 83.975178][ T31] locks held by kworker/1:0/31: 5, last CPU#1: [ 83.975192][ T31] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 83.975253][ T31] #1: ffffc90000a5fc40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 83.975307][ T31] #2: ffff888037a15a90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 83.975358][ T31] #3: ffff88803c1ac9a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 83.975412][ T31] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 83.975475][ T31] CPU: 1 UID: 0 PID: 31 Comm: kworker/1:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 83.975499][ T31] Tainted: [W]=WARN [ 83.975505][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 83.975516][ T31] Workqueue: events uhid_device_add_worker [ 83.975544][ T31] Call Trace: [ 83.975552][ T31] [ 83.975560][ T31] dump_stack_lvl+0xe8/0x150 [ 83.975588][ T31] __might_resched+0x31b/0x470 [ 83.975619][ T31] __kmalloc_noprof+0xec/0x790 [ 83.975641][ T31] ? rt_spin_unlock+0x165/0x200 [ 83.975666][ T31] ? __hid_request+0xb2/0x490 [ 83.975688][ T31] ? __hid_request+0xb2/0x490 [ 83.975713][ T31] ? __wake_up_common_lock+0x190/0x1f0 [ 83.975737][ T31] __hid_request+0xb2/0x490 [ 83.975767][ T31] picolcd_set_contrast+0x200/0x2f0 [ 83.975798][ T31] picolcd_init_lcd+0x1f9/0x2f0 [ 83.975829][ T31] picolcd_probe+0xbae/0x16c0 [ 83.975867][ T31] hid_device_probe+0x46a/0x870 [ 83.975903][ T31] ? __pfx_hid_device_probe+0x10/0x10 [ 83.975926][ T31] really_probe+0x254/0xae0 [ 83.975957][ T31] __driver_probe_device+0x1e8/0x360 [ 83.975989][ T31] driver_probe_device+0x4f/0x240 [ 83.976017][ T31] __device_attach_driver+0x270/0x410 [ 83.976046][ T31] bus_for_each_drv+0x25b/0x2f0 [ 83.976067][ T31] ? __pfx___device_attach_driver+0x10/0x10 [ 83.976093][ T31] ? __pfx_bus_for_each_drv+0x10/0x10 [ 83.976113][ T31] ? rt_spin_unlock+0x165/0x200 [ 83.976145][ T31] __device_attach+0x2c7/0x450 [ 83.976172][ T31] ? __pfx___device_attach+0x10/0x10 [ 83.976197][ T31] ? rt_spin_unlock+0x165/0x200 [ 83.976228][ T31] device_initial_probe+0xa1/0xd0 [ 83.976255][ T31] bus_probe_device+0x12d/0x220 [ 83.976277][ T31] device_add+0x7d7/0xb80 [ 83.976302][ T31] hid_add_device+0x272/0x3e0 [ 83.976325][ T31] ? uhid_device_add_worker+0x1e/0xf0 [ 83.976350][ T31] ? process_scheduled_works+0x97a/0x1630 [ 83.976374][ T31] uhid_device_add_worker+0x43/0xf0 [ 83.976401][ T31] process_scheduled_works+0xc3d/0x1630 [ 83.976456][ T31] ? __pfx_process_scheduled_works+0x10/0x10 [ 83.976488][ T31] ? assign_work+0x3cf/0x5d0 [ 83.976519][ T31] worker_thread+0xa47/0xfb0 [ 83.976570][ T31] kthread+0x38b/0x470 [ 83.976589][ T31] ? __pfx_worker_thread+0x10/0x10 [ 83.976610][ T31] ? __pfx_kthread+0x10/0x10 [ 83.976627][ T31] ret_from_fork+0x514/0xb70 [ 83.976651][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 83.976670][ T31] ? __switch_to+0xc89/0x1420 [ 83.976699][ T31] ? __pfx_kthread+0x10/0x10 [ 83.976719][ T31] ret_from_fork_asm+0x1a/0x30 [ 83.976751][ T31] [ 84.175427][ T31] hid-picolcd 0003:04D8:C002.000A: No report with id 0x94 found [ 84.273101][ T31] hid-picolcd 0003:04D8:C002.000A: failed to configure display [pid 5652] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5652, si_uid=0, si_status=0, si_utime=0, si_stime=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 5656 attached , child_tidptr=0x55558ec2b6d0) = 5656 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5656] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5656] setpgid(0, 0) = 0 [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5656] write(3, "1000", 4) = 4 [pid 5656] close(3) = 0 executing program [pid 5656] write(1, "executing program\n", 18) = 18 [pid 5656] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5656] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5656] exit_group(0) = ? [ 84.487769][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000B/input/input25 [ 84.553115][ T9] rc_core: IR keymap rc-rc6-mce not found [ 84.553180][ T9] Registered IR keymap rc-empty [ 84.554488][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000B/rc/rc0 [ 84.560902][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000B/rc/rc0/input26 [ 84.588508][ T9] hid-picolcd 0003:04D8:C002.000B: No report with id 0x94 found [ 84.590154][ T9] hid-picolcd 0003:04D8:C002.000B: failed to configure display [pid 5656] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5656, 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 5659 attached , child_tidptr=0x55558ec2b6d0) = 5659 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5659] setpgid(0, 0) = 0 [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5659] write(3, "1000", 4) = 4 [pid 5659] close(3) = 0 [pid 5659] write(1, "executing program\n", 18) = 18 executing program [pid 5659] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5659] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5659] exit_group(0) = ? [ 84.811235][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000C/input/input27 [ 84.883130][ T9] rc_core: IR keymap rc-rc6-mce not found [ 84.883202][ T9] Registered IR keymap rc-empty [ 84.885764][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000C/rc/rc0 [ 84.891825][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000C/rc/rc0/input28 [ 84.922459][ T9] hid-picolcd 0003:04D8:C002.000C: No report with id 0x94 found [ 84.922539][ T9] hid-picolcd 0003:04D8:C002.000C: failed to configure display [pid 5659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=0, si_stime=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 5662 attached , child_tidptr=0x55558ec2b6d0) = 5662 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5662] setpgid(0, 0) = 0 [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5662] write(3, "1000", 4) = 4 [pid 5662] close(3) = 0 [pid 5662] write(1, "executing program\n", 18) = 18 executing program [pid 5662] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5662] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5662] exit_group(0) = ? [ 85.097276][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000D/input/input29 [ 85.173390][ T9] rc_core: IR keymap rc-rc6-mce not found [ 85.173456][ T9] Registered IR keymap rc-empty [ 85.177532][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000D/rc/rc0 [ 85.184430][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000D/rc/rc0/input30 [ 85.192737][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 85.192753][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 85.192768][ T9] preempt_count: 0, expected: 0 [ 85.192777][ T9] RCU nest depth: 1, expected: 0 [ 85.192786][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 85.192813][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 85.201135][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 85.201197][ T9] #2: ffff88802a2fda90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 85.201248][ T9] #3: ffff88803892d9a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 85.201300][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 85.201359][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 85.201383][ T9] Tainted: [W]=WARN [ 85.201390][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 85.201401][ T9] Workqueue: events uhid_device_add_worker [ 85.201427][ T9] Call Trace: [ 85.201435][ T9] [ 85.201443][ T9] dump_stack_lvl+0xe8/0x150 [ 85.201471][ T9] __might_resched+0x31b/0x470 [ 85.201504][ T9] __kmalloc_noprof+0xec/0x790 [ 85.201526][ T9] ? rt_spin_unlock+0x165/0x200 [ 85.201549][ T9] ? __hid_request+0xb2/0x490 [ 85.201570][ T9] ? __hid_request+0xb2/0x490 [ 85.201593][ T9] ? __wake_up_common_lock+0x190/0x1f0 [ 85.201618][ T9] __hid_request+0xb2/0x490 [ 85.201647][ T9] picolcd_set_contrast+0x200/0x2f0 [ 85.201677][ T9] picolcd_init_lcd+0x1f9/0x2f0 [ 85.201706][ T9] picolcd_probe+0xbae/0x16c0 [ 85.201742][ T9] hid_device_probe+0x46a/0x870 [ 85.201777][ T9] ? __pfx_hid_device_probe+0x10/0x10 [ 85.201800][ T9] really_probe+0x254/0xae0 [ 85.201829][ T9] __driver_probe_device+0x1e8/0x360 [ 85.201855][ T9] driver_probe_device+0x4f/0x240 [ 85.201884][ T9] __device_attach_driver+0x270/0x410 [ 85.201912][ T9] bus_for_each_drv+0x25b/0x2f0 [ 85.201932][ T9] ? __pfx___device_attach_driver+0x10/0x10 [ 85.201956][ T9] ? __pfx_bus_for_each_drv+0x10/0x10 [ 85.201975][ T9] ? rt_spin_unlock+0x165/0x200 [ 85.202008][ T9] __device_attach+0x2c7/0x450 [ 85.202034][ T9] ? __pfx___device_attach+0x10/0x10 [ 85.202057][ T9] ? rt_spin_unlock+0x165/0x200 [ 85.202089][ T9] device_initial_probe+0xa1/0xd0 [ 85.202116][ T9] bus_probe_device+0x12d/0x220 [ 85.202138][ T9] device_add+0x7d7/0xb80 [ 85.202163][ T9] hid_add_device+0x272/0x3e0 [ 85.202186][ T9] ? uhid_device_add_worker+0x1e/0xf0 [ 85.202210][ T9] ? process_scheduled_works+0x97a/0x1630 [pid 5662] +++ exited with 0 +++ [ 85.202235][ T9] uhid_device_add_worker+0x43/0xf0 [ 85.202262][ T9] process_scheduled_works+0xc3d/0x1630 [ 85.202319][ T9] ? __pfx_process_scheduled_works+0x10/0x10 [ 85.202350][ T9] ? assign_work+0x3cf/0x5d0 [ 85.202379][ T9] worker_thread+0xa47/0xfb0 [ 85.202436][ T9] kthread+0x38b/0x470 [ 85.202455][ T9] ? __pfx_worker_thread+0x10/0x10 [ 85.202478][ T9] ? __pfx_kthread+0x10/0x10 [ 85.202498][ T9] ret_from_fork+0x514/0xb70 [ 85.202520][ T9] ? __pfx_ret_from_fork+0x10/0x10 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5662, 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 5667 attached [pid 5667] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5667] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... clone resumed>, child_tidptr=0x55558ec2b6d0) = 5667 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5667] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5667] setpgid(0, 0) = 0 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5667] write(3, "1000", 4) = 4 [pid 5667] close(3) = 0 [pid 5667] write(1, "executing program\n", 18) = 18 [pid 5667] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5667] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5667] exit_group(0) = ? executing program [ 85.202539][ T9] ? __switch_to+0xc89/0x1420 [ 85.202567][ T9] ? __pfx_kthread+0x10/0x10 [ 85.202588][ T9] ret_from_fork_asm+0x1a/0x30 [ 85.202623][ T9] [ 85.215019][ T9] hid-picolcd 0003:04D8:C002.000D: No report with id 0x94 found [ 85.215039][ T9] hid-picolcd 0003:04D8:C002.000D: failed to configure display [ 85.547531][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000E/input/input31 [ 85.634437][ T9] rc_core: IR keymap rc-rc6-mce not found [ 85.634507][ T9] Registered IR keymap rc-empty [ 85.641609][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000E/rc/rc0 [ 85.652867][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000E/rc/rc0/input32 [ 85.676054][ T9] hid-picolcd 0003:04D8:C002.000E: No report with id 0x94 found [ 85.677607][ T9] hid-picolcd 0003:04D8:C002.000E: failed to configure display [pid 5667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, 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 5672 attached [pid 5672] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5672] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... clone resumed>, child_tidptr=0x55558ec2b6d0) = 5672 [pid 5672] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5672] setpgid(0, 0) = 0 [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5672] write(3, "1000", 4) = 4 [pid 5672] close(3) = 0 [pid 5672] write(1, "executing program\n", 18) = 18 executing program [pid 5672] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5672] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5672] exit_group(0) = ? [ 85.870375][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000F/input/input33 [ 85.953138][ T9] rc_core: IR keymap rc-rc6-mce not found [ 85.953554][ T9] Registered IR keymap rc-empty [ 85.954955][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000F/rc/rc0 [ 85.957474][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.000F/rc/rc0/input34 [ 85.966402][ T9] hid-picolcd 0003:04D8:C002.000F: No report with id 0x94 found [ 85.966421][ T9] hid-picolcd 0003:04D8:C002.000F: failed to configure display [pid 5672] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5672, 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 5675 attached , child_tidptr=0x55558ec2b6d0) = 5675 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5675] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5675] setpgid(0, 0) = 0 [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5675] write(3, "1000", 4) = 4 [pid 5675] close(3) = 0 executing program [pid 5675] write(1, "executing program\n", 18) = 18 [pid 5675] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5675] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5675] exit_group(0) = ? [ 86.193716][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0010/input/input35 [ 86.264199][ T9] rc_core: IR keymap rc-rc6-mce not found [ 86.264249][ T9] Registered IR keymap rc-empty [ 86.268383][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0010/rc/rc0 [ 86.270884][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0010/rc/rc0/input36 [ 86.278353][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 86.278367][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 86.278382][ T9] preempt_count: 0, expected: 0 [ 86.278391][ T9] RCU nest depth: 1, expected: 0 [ 86.278400][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 86.278414][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 86.278474][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 86.278526][ T9] #2: ffff888021705a90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 86.278575][ T9] #3: ffff8880288281a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 86.278627][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 86.278686][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 86.278710][ T9] Tainted: [W]=WARN [ 86.278716][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 86.278727][ T9] Workqueue: events uhid_device_add_worker [ 86.278754][ T9] Call Trace: [pid 5675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5675, si_uid=0, si_status=0, si_utime=0, si_stime=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 5678 attached [ 86.278761][ T9] [ 86.278769][ T9] dump_stack_lvl+0xe8/0x150 [ 86.278796][ T9] __might_resched+0x31b/0x470 [ 86.278828][ T9] __kmalloc_noprof+0xec/0x790 [ 86.278851][ T9] ? rt_spin_unlock+0x165/0x200 [ 86.278875][ T9] ? __hid_request+0xb2/0x490 [ 86.278895][ T9] ? __hid_request+0xb2/0x490 [ 86.278918][ T9] ? __wake_up_common_lock+0x190/0x1f0 [ 86.278943][ T9] __hid_request+0xb2/0x490 [ 86.278973][ T9] picolcd_set_contrast+0x200/0x2f0 [ 86.279001][ T9] picolcd_init_lcd+0x1f9/0x2f0 , child_tidptr=0x55558ec2b6d0) = 5678 [pid 5678] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5678] <... set_robust_list resumed>) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5678] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5678] setpgid(0, 0) = 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5678] write(3, "1000", 4) = 4 [pid 5678] close(3) = 0 [pid 5678] write(1, "executing program\n", 18) = 18 executing program [pid 5678] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5678] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5678] exit_group(0) = ? [ 86.279030][ T9] picolcd_probe+0xbae/0x16c0 [ 86.279059][ T9] hid_device_probe+0x46a/0x870 [ 86.279093][ T9] ? __pfx_hid_device_probe+0x10/0x10 [ 86.279115][ T9] really_probe+0x254/0xae0 [ 86.279144][ T9] __driver_probe_device+0x1e8/0x360 [ 86.279178][ T9] driver_probe_device+0x4f/0x240 [ 86.279206][ T9] __device_attach_driver+0x270/0x410 [ 86.279234][ T9] bus_for_each_drv+0x25b/0x2f0 [ 86.279253][ T9] ? __pfx___device_attach_driver+0x10/0x10 [ 86.279278][ T9] ? __pfx_bus_for_each_drv+0x10/0x10 [ 86.279297][ T9] ? rt_spin_unlock+0x165/0x200 [ 86.279329][ T9] __device_attach+0x2c7/0x450 [ 86.279355][ T9] ? __pfx___device_attach+0x10/0x10 [ 86.279379][ T9] ? rt_spin_unlock+0x165/0x200 [ 86.279410][ T9] device_initial_probe+0xa1/0xd0 [ 86.279436][ T9] bus_probe_device+0x12d/0x220 [ 86.279459][ T9] device_add+0x7d7/0xb80 [ 86.279484][ T9] hid_add_device+0x272/0x3e0 [ 86.279507][ T9] ? uhid_device_add_worker+0x1e/0xf0 [ 86.279531][ T9] ? process_scheduled_works+0x97a/0x1630 [ 86.279555][ T9] uhid_device_add_worker+0x43/0xf0 [ 86.279583][ T9] process_scheduled_works+0xc3d/0x1630 [ 86.279639][ T9] ? __pfx_process_scheduled_works+0x10/0x10 [ 86.279670][ T9] ? assign_work+0x3cf/0x5d0 [ 86.279699][ T9] worker_thread+0xa47/0xfb0 [ 86.279752][ T9] kthread+0x38b/0x470 [ 86.279771][ T9] ? __pfx_worker_thread+0x10/0x10 [ 86.279794][ T9] ? __pfx_kthread+0x10/0x10 [ 86.279814][ T9] ret_from_fork+0x514/0xb70 [ 86.279836][ T9] ? __pfx_ret_from_fork+0x10/0x10 [ 86.279854][ T9] ? __switch_to+0xc89/0x1420 [ 86.279883][ T9] ? __pfx_kthread+0x10/0x10 [ 86.279904][ T9] ret_from_fork_asm+0x1a/0x30 [ 86.279939][ T9] [ 86.281794][ T9] hid-picolcd 0003:04D8:C002.0010: No report with id 0x94 found [ 86.281811][ T9] hid-picolcd 0003:04D8:C002.0010: failed to configure display [ 86.525276][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0011/input/input37 [ 86.633081][ T9] rc_core: IR keymap rc-rc6-mce not found [ 86.633099][ T9] Registered IR keymap rc-empty [ 86.637910][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0011/rc/rc0 [ 86.642051][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0011/rc/rc0/input38 [ 86.675303][ T9] hid-picolcd 0003:04D8:C002.0011: No report with id 0x94 found [ 86.675323][ T9] hid-picolcd 0003:04D8:C002.0011: failed to configure display [ 86.710667][ T97] cfg80211: failed to load regulatory.db [pid 5678] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5678, 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 5681 attached , child_tidptr=0x55558ec2b6d0) = 5681 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5681] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5681] <... set_robust_list resumed>) = 0 [pid 5681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5681] setpgid(0, 0) = 0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5681] write(3, "1000", 4) = 4 [pid 5681] close(3) = 0 [pid 5681] write(1, "executing program\n", 18) = 18 executing program [pid 5681] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5681] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5681] exit_group(0) = ? [ 86.911152][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0012/input/input39 [ 86.974030][ T9] rc_core: IR keymap rc-rc6-mce not found [ 86.974099][ T9] Registered IR keymap rc-empty [ 86.975408][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0012/rc/rc0 [ 86.980757][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0012/rc/rc0/input40 [ 86.988790][ T9] hid-picolcd 0003:04D8:C002.0012: No report with id 0x94 found [ 86.988809][ T9] hid-picolcd 0003:04D8:C002.0012: failed to configure display [pid 5681] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, 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 5684 attached , child_tidptr=0x55558ec2b6d0) = 5684 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5684] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5684] <... set_robust_list resumed>) = 0 [pid 5684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5684] setpgid(0, 0) = 0 [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5684] write(3, "1000", 4) = 4 [pid 5684] close(3) = 0 [pid 5684] write(1, "executing program\n", 18) = 18 executing program [pid 5684] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5684] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5684] exit_group(0) = ? [ 87.207305][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0013/input/input41 [ 87.283112][ T9] rc_core: IR keymap rc-rc6-mce not found [ 87.283169][ T9] Registered IR keymap rc-empty [ 87.286152][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0013/rc/rc0 [ 87.288702][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0013/rc/rc0/input42 [ 87.294601][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 87.294617][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 87.294631][ T9] preempt_count: 0, expected: 0 [ 87.294641][ T9] RCU nest depth: 1, expected: 0 [ 87.294650][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 87.294664][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 87.294724][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 87.294776][ T9] #2: ffff888047409a90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 87.294826][ T9] #3: ffff888028ad39a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 87.294893][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 87.294952][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 87.294976][ T9] Tainted: [W]=WARN [ 87.294982][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 87.294993][ T9] Workqueue: events uhid_device_add_worker [ 87.295019][ T9] Call Trace: [ 87.295027][ T9] [ 87.295035][ T9] dump_stack_lvl+0xe8/0x150 [ 87.295064][ T9] __might_resched+0x31b/0x470 [ 87.295096][ T9] __kmalloc_noprof+0xec/0x790 [ 87.295117][ T9] ? rt_spin_unlock+0x165/0x200 [ 87.295141][ T9] ? __hid_request+0xb2/0x490 [ 87.295162][ T9] ? __hid_request+0xb2/0x490 [ 87.295184][ T9] ? __wake_up_common_lock+0x190/0x1f0 [ 87.295212][ T9] __hid_request+0xb2/0x490 [ 87.295242][ T9] picolcd_set_contrast+0x200/0x2f0 [ 87.295272][ T9] picolcd_init_lcd+0x1f9/0x2f0 [ 87.295300][ T9] picolcd_probe+0xbae/0x16c0 [ 87.295329][ T9] hid_device_probe+0x46a/0x870 [ 87.295364][ T9] ? __pfx_hid_device_probe+0x10/0x10 [ 87.295387][ T9] really_probe+0x254/0xae0 [ 87.295415][ T9] __driver_probe_device+0x1e8/0x360 [ 87.295443][ T9] driver_probe_device+0x4f/0x240 [ 87.295470][ T9] __device_attach_driver+0x270/0x410 [ 87.295498][ T9] bus_for_each_drv+0x25b/0x2f0 [ 87.295518][ T9] ? __pfx___device_attach_driver+0x10/0x10 [ 87.295548][ T9] ? __pfx_bus_for_each_drv+0x10/0x10 [ 87.295567][ T9] ? rt_spin_unlock+0x165/0x200 [ 87.295599][ T9] __device_attach+0x2c7/0x450 [ 87.295625][ T9] ? __pfx___device_attach+0x10/0x10 [ 87.295648][ T9] ? rt_spin_unlock+0x165/0x200 [ 87.295681][ T9] device_initial_probe+0xa1/0xd0 [ 87.295705][ T9] bus_probe_device+0x12d/0x220 [ 87.295728][ T9] device_add+0x7d7/0xb80 [ 87.295753][ T9] hid_add_device+0x272/0x3e0 [ 87.295776][ T9] ? uhid_device_add_worker+0x1e/0xf0 [pid 5684] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [ 87.295800][ T9] ? process_scheduled_works+0x97a/0x1630 [ 87.295825][ T9] uhid_device_add_worker+0x43/0xf0 [ 87.295852][ T9] process_scheduled_works+0xc3d/0x1630 [ 87.295909][ T9] ? __pfx_process_scheduled_works+0x10/0x10 [ 87.295940][ T9] ? assign_work+0x3cf/0x5d0 [ 87.295969][ T9] worker_thread+0xa47/0xfb0 [ 87.296023][ T9] kthread+0x38b/0x470 [ 87.296041][ T9] ? __pfx_worker_thread+0x10/0x10 [ 87.296063][ T9] ? __pfx_kthread+0x10/0x10 [ 87.296083][ T9] ret_from_fork+0x514/0xb70 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 5687 attached , child_tidptr=0x55558ec2b6d0) = 5687 [pid 5687] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5687] <... set_robust_list resumed>) = 0 [pid 5687] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5687] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5687] setpgid(0, 0) = 0 [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5687] write(3, "1000", 4) = 4 [pid 5687] close(3) = 0 [pid 5687] write(1, "executing program\n", 18) = 18 [pid 5687] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 executing program [ 87.296106][ T9] ? __pfx_ret_from_fork+0x10/0x10 [ 87.296125][ T9] ? __switch_to+0xc89/0x1420 [ 87.296153][ T9] ? __pfx_kthread+0x10/0x10 [ 87.296173][ T9] ret_from_fork_asm+0x1a/0x30 [ 87.296209][ T9] [ 87.298237][ T9] hid-picolcd 0003:04D8:C002.0013: No report with id 0x94 found [ 87.298254][ T9] hid-picolcd 0003:04D8:C002.0013: failed to configure display [pid 5687] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5687] exit_group(0) = ? [ 87.690979][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0014/input/input43 [ 87.763306][ T31] rc_core: IR keymap rc-rc6-mce not found [ 87.763359][ T31] Registered IR keymap rc-empty [ 87.766387][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0014/rc/rc0 [ 87.771039][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0014/rc/rc0/input44 [ 87.795247][ T31] hid-picolcd 0003:04D8:C002.0014: No report with id 0x94 found [ 87.795316][ T31] hid-picolcd 0003:04D8:C002.0014: failed to configure display [pid 5687] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=0, si_stime=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 5690 attached , child_tidptr=0x55558ec2b6d0) = 5690 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5690] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5690] <... set_robust_list resumed>) = 0 [pid 5690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5690] setpgid(0, 0) = 0 [pid 5690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5690] write(3, "1000", 4) = 4 [pid 5690] close(3) = 0 [pid 5690] write(1, "executing program\n", 18) = 18 executing program [pid 5690] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5690] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5690] exit_group(0) = ? [ 87.986902][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0015/input/input45 [ 88.073109][ T9] rc_core: IR keymap rc-rc6-mce not found [ 88.078928][ T9] Registered IR keymap rc-empty [ 88.079767][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0015/rc/rc0 [ 88.082712][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0015/rc/rc0/input46 [ 88.113907][ T9] hid-picolcd 0003:04D8:C002.0015: No report with id 0x94 found [ 88.122025][ T9] hid-picolcd 0003:04D8:C002.0015: failed to configure display [pid 5690] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5690, 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 5693 attached [pid 5693] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... clone resumed>, child_tidptr=0x55558ec2b6d0) = 5693 [pid 5693] <... set_robust_list resumed>) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5693] setpgid(0, 0) = 0 [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5693] write(3, "1000", 4) = 4 [pid 5693] close(3) = 0 [pid 5693] write(1, "executing program\n", 18) = 18 executing program [pid 5693] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5693] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5693] exit_group(0) = ? [ 88.335873][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0016/input/input47 [ 88.414538][ T9] rc_core: IR keymap rc-rc6-mce not found [ 88.414599][ T9] Registered IR keymap rc-empty [ 88.415890][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0016/rc/rc0 [ 88.428342][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0016/rc/rc0/input48 [ 88.448988][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 88.449044][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 88.449060][ T9] preempt_count: 0, expected: 0 [ 88.449069][ T9] RCU nest depth: 1, expected: 0 [ 88.449077][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 88.449089][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 88.449150][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 88.449201][ T9] #2: ffff88803860da90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 88.451048][ T9] #3: ffff888038cad9a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 88.451102][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 88.451165][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 88.451189][ T9] Tainted: [W]=WARN [ 88.451195][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 88.451206][ T9] Workqueue: events uhid_device_add_worker [ 88.451232][ T9] Call Trace: [ 88.451240][ T9] [ 88.451247][ T9] dump_stack_lvl+0xe8/0x150 [ 88.451275][ T9] __might_resched+0x31b/0x470 [ 88.451307][ T9] __kmalloc_noprof+0xec/0x790 [ 88.451330][ T9] ? rt_spin_unlock+0x165/0x200 [ 88.451353][ T9] ? __hid_request+0xb2/0x490 [ 88.451373][ T9] ? __hid_request+0xb2/0x490 [ 88.451396][ T9] ? __wake_up_common_lock+0x190/0x1f0 [ 88.451421][ T9] __hid_request+0xb2/0x490 [pid 5693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, 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 [ 88.451452][ T9] picolcd_set_contrast+0x200/0x2f0 [ 88.451487][ T9] picolcd_init_lcd+0x1f9/0x2f0 [ 88.451516][ T9] picolcd_probe+0xbae/0x16c0 [ 88.451545][ T9] hid_device_probe+0x46a/0x870 [ 88.451579][ T9] ? __pfx_hid_device_probe+0x10/0x10 [ 88.451602][ T9] really_probe+0x254/0xae0 [ 88.451631][ T9] __driver_probe_device+0x1e8/0x360 [ 88.451658][ T9] driver_probe_device+0x4f/0x240 [ 88.451685][ T9] __device_attach_driver+0x270/0x410 [ 88.451714][ T9] bus_for_each_drv+0x25b/0x2f0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5696 attached , child_tidptr=0x55558ec2b6d0) = 5696 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5696] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5696] setpgid(0, 0) = 0 [pid 5696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 88.451733][ T9] ? __pfx___device_attach_driver+0x10/0x10 [ 88.451758][ T9] ? __pfx_bus_for_each_drv+0x10/0x10 [ 88.451777][ T9] ? rt_spin_unlock+0x165/0x200 [ 88.451809][ T9] __device_attach+0x2c7/0x450 [ 88.451835][ T9] ? __pfx___device_attach+0x10/0x10 [ 88.451858][ T9] ? rt_spin_unlock+0x165/0x200 [ 88.451890][ T9] device_initial_probe+0xa1/0xd0 [ 88.451915][ T9] bus_probe_device+0x12d/0x220 [ 88.451938][ T9] device_add+0x7d7/0xb80 [ 88.451962][ T9] hid_add_device+0x272/0x3e0 [pid 5696] write(3, "1000", 4) = 4 [pid 5696] close(3) = 0 [pid 5696] write(1, "executing program\n", 18) = 18 executing program [pid 5696] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5696] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5696] exit_group(0) = ? [ 88.451985][ T9] ? uhid_device_add_worker+0x1e/0xf0 [ 88.452009][ T9] ? process_scheduled_works+0x97a/0x1630 [ 88.452034][ T9] uhid_device_add_worker+0x43/0xf0 [ 88.452062][ T9] process_scheduled_works+0xc3d/0x1630 [ 88.452118][ T9] ? __pfx_process_scheduled_works+0x10/0x10 [ 88.452149][ T9] ? assign_work+0x3cf/0x5d0 [ 88.452178][ T9] worker_thread+0xa47/0xfb0 [ 88.452231][ T9] kthread+0x38b/0x470 [ 88.452250][ T9] ? __pfx_worker_thread+0x10/0x10 [ 88.452273][ T9] ? __pfx_kthread+0x10/0x10 [ 88.452293][ T9] ret_from_fork+0x514/0xb70 [ 88.452315][ T9] ? __pfx_ret_from_fork+0x10/0x10 [ 88.452333][ T9] ? __switch_to+0xc89/0x1420 [ 88.452362][ T9] ? __pfx_kthread+0x10/0x10 [ 88.452382][ T9] ret_from_fork_asm+0x1a/0x30 [ 88.452419][ T9] [ 88.465542][ T9] hid-picolcd 0003:04D8:C002.0016: No report with id 0x94 found [ 88.465560][ T9] hid-picolcd 0003:04D8:C002.0016: failed to configure display [ 88.761792][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0017/input/input49 [ 88.853094][ T9] rc_core: IR keymap rc-rc6-mce not found [ 88.853150][ T9] Registered IR keymap rc-empty [ 88.854655][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0017/rc/rc0 [ 88.859610][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0017/rc/rc0/input50 [ 88.866787][ T9] hid-picolcd 0003:04D8:C002.0017: No report with id 0x94 found [ 88.866805][ T9] hid-picolcd 0003:04D8:C002.0017: failed to configure display [pid 5696] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5696, 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 5699 attached , child_tidptr=0x55558ec2b6d0) = 5699 [pid 5699] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5699] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5699] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5699] setpgid(0, 0) = 0 [pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5699] write(3, "1000", 4) = 4 [pid 5699] close(3) = 0 [pid 5699] write(1, "executing program\n", 18) = 18 executing program [pid 5699] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5699] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5699] exit_group(0) = ? [ 89.082411][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0018/input/input51 [ 89.153105][ T31] rc_core: IR keymap rc-rc6-mce not found [ 89.153171][ T31] Registered IR keymap rc-empty [ 89.154469][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0018/rc/rc0 [ 89.162444][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0018/rc/rc0/input52 [ 89.173392][ T31] hid-picolcd 0003:04D8:C002.0018: No report with id 0x94 found [ 89.173412][ T31] hid-picolcd 0003:04D8:C002.0018: failed to configure display [pid 5699] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5699, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- 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 5702 attached [pid 5702] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] <... clone resumed>, child_tidptr=0x55558ec2b6d0) = 5702 [pid 5702] <... set_robust_list resumed>) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5702] rt_sigprocmask(SIG_SETMASK, [] [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5702] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5702] setpgid(0, 0) = 0 [pid 5702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5702] write(3, "1000", 4) = 4 [pid 5702] close(3) = 0 [pid 5702] write(1, "executing program\n", 18) = 18 executing program [pid 5702] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5702] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5702] exit_group(0) = ? [ 89.385767][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0019/input/input53 [ 89.453104][ T31] rc_core: IR keymap rc-rc6-mce not found [ 89.453166][ T31] Registered IR keymap rc-empty [ 89.454513][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0019/rc/rc0 [ 89.463641][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.0019/rc/rc0/input54 [ 89.482653][ T31] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 89.486143][ T31] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 31, name: kworker/1:0 [ 89.486162][ T31] preempt_count: 0, expected: 0 [ 89.486172][ T31] RCU nest depth: 1, expected: 0 [ 89.486181][ T31] locks held by kworker/1:0/31: 5, last CPU#1: [ 89.486195][ T31] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 89.486255][ T31] #1: ffffc90000a5fc40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 89.486307][ T31] #2: ffff88803545da90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 89.486356][ T31] #3: ffff88802a80d9a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 89.486408][ T31] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 89.486469][ T31] CPU: 1 UID: 0 PID: 31 Comm: kworker/1:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 89.486495][ T31] Tainted: [W]=WARN [ 89.486502][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 89.486512][ T31] Workqueue: events uhid_device_add_worker [ 89.486538][ T31] Call Trace: [ 89.486546][ T31] [ 89.486554][ T31] dump_stack_lvl+0xe8/0x150 [ 89.486581][ T31] __might_resched+0x31b/0x470 [ 89.486613][ T31] __kmalloc_noprof+0xec/0x790 [ 89.486636][ T31] ? rt_spin_unlock+0x165/0x200 [ 89.486659][ T31] ? __hid_request+0xb2/0x490 [ 89.486679][ T31] ? __hid_request+0xb2/0x490 [ 89.486702][ T31] ? __wake_up_common_lock+0x190/0x1f0 [ 89.486727][ T31] __hid_request+0xb2/0x490 [ 89.486756][ T31] picolcd_set_contrast+0x200/0x2f0 [ 89.486785][ T31] picolcd_init_lcd+0x1f9/0x2f0 [ 89.486814][ T31] picolcd_probe+0xbae/0x16c0 [ 89.486843][ T31] hid_device_probe+0x46a/0x870 [ 89.486876][ T31] ? __pfx_hid_device_probe+0x10/0x10 [ 89.486906][ T31] really_probe+0x254/0xae0 [ 89.486935][ T31] __driver_probe_device+0x1e8/0x360 [ 89.486962][ T31] driver_probe_device+0x4f/0x240 [ 89.486989][ T31] __device_attach_driver+0x270/0x410 [ 89.487017][ T31] bus_for_each_drv+0x25b/0x2f0 [ 89.487036][ T31] ? __pfx___device_attach_driver+0x10/0x10 [ 89.487061][ T31] ? __pfx_bus_for_each_drv+0x10/0x10 [ 89.487079][ T31] ? rt_spin_unlock+0x165/0x200 [ 89.487111][ T31] __device_attach+0x2c7/0x450 [ 89.487137][ T31] ? __pfx___device_attach+0x10/0x10 [ 89.487160][ T31] ? rt_spin_unlock+0x165/0x200 [ 89.487192][ T31] device_initial_probe+0xa1/0xd0 [ 89.487218][ T31] bus_probe_device+0x12d/0x220 [ 89.487240][ T31] device_add+0x7d7/0xb80 [ 89.487265][ T31] hid_add_device+0x272/0x3e0 [ 89.487288][ T31] ? uhid_device_add_worker+0x1e/0xf0 [pid 5702] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5702, 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 5705 attached , child_tidptr=0x55558ec2b6d0) = 5705 [pid 5705] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5705] <... set_robust_list resumed>) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 89.487312][ T31] ? process_scheduled_works+0x97a/0x1630 [ 89.487337][ T31] uhid_device_add_worker+0x43/0xf0 [ 89.487365][ T31] process_scheduled_works+0xc3d/0x1630 [ 89.487420][ T31] ? __pfx_process_scheduled_works+0x10/0x10 [ 89.487451][ T31] ? assign_work+0x3cf/0x5d0 [ 89.487481][ T31] worker_thread+0xa47/0xfb0 [ 89.487533][ T31] kthread+0x38b/0x470 [ 89.487552][ T31] ? __pfx_worker_thread+0x10/0x10 [ 89.487575][ T31] ? __pfx_kthread+0x10/0x10 [ 89.487595][ T31] ret_from_fork+0x514/0xb70 [pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5705] setpgid(0, 0) = 0 [pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5705] write(3, "1000", 4) = 4 [pid 5705] close(3) = 0 [pid 5705] write(1, "executing program\n", 18) = 18 executing program [pid 5705] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5705] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5705] exit_group(0) = ? [ 89.487616][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 89.487635][ T31] ? __switch_to+0xc89/0x1420 [ 89.487663][ T31] ? __pfx_kthread+0x10/0x10 [ 89.487684][ T31] ret_from_fork_asm+0x1a/0x30 [ 89.487718][ T31] [ 89.556957][ T31] hid-picolcd 0003:04D8:C002.0019: No report with id 0x94 found [ 89.556979][ T31] hid-picolcd 0003:04D8:C002.0019: failed to configure display [ 89.842697][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001A/input/input55 [ 89.923106][ T31] rc_core: IR keymap rc-rc6-mce not found [ 89.923172][ T31] Registered IR keymap rc-empty [ 89.926162][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001A/rc/rc0 [ 89.928630][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001A/rc/rc0/input56 [ 89.953342][ T31] hid-picolcd 0003:04D8:C002.001A: No report with id 0x94 found [ 89.955610][ T31] hid-picolcd 0003:04D8:C002.001A: failed to configure display [pid 5705] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5705, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- 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 5708 attached , child_tidptr=0x55558ec2b6d0) = 5708 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5708] set_robust_list(0x55558ec2b6e0, 24) = 0 [pid 5708] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5708] setpgid(0, 0) = 0 [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5708] write(3, "1000", 4) = 4 [pid 5708] close(3) = 0 executing program [pid 5708] write(1, "executing program\n", 18) = 18 [pid 5708] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 [pid 5708] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5708] exit_group(0) = ? [ 90.155359][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001B/input/input57 [ 90.223133][ T31] rc_core: IR keymap rc-rc6-mce not found [ 90.223193][ T31] Registered IR keymap rc-empty [ 90.224546][ T31] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001B/rc/rc0 [ 90.230554][ T31] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001B/rc/rc0/input58 [ 90.251938][ T31] hid-picolcd 0003:04D8:C002.001B: No report with id 0x94 found [ 90.251958][ T31] hid-picolcd 0003:04D8:C002.001B: failed to configure display [pid 5708] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5708, si_uid=0, si_status=0, si_utime=0, si_stime=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 5711 attached , child_tidptr=0x55558ec2b6d0) = 5711 [pid 5711] set_robust_list(0x55558ec2b6e0, 24 [pid 5618] rt_sigprocmask(SIG_SETMASK, [] [pid 5711] <... set_robust_list resumed>) = 0 [pid 5618] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5711] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5711] setpgid(0, 0) = 0 [pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5711] write(3, "1000", 4) = 4 [pid 5711] close(3) = 0 [pid 5711] write(1, "executing program\n", 18) = 18 [pid 5711] openat(AT_FDCWD, "/dev/uhid", O_RDWR) = 3 executing program [pid 5711] write(3, "\x0b\x00\x00\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 347) = 347 [pid 5711] exit_group(0) = ? [ 90.458513][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001C/input/input59 [ 90.543086][ T9] rc_core: IR keymap rc-rc6-mce not found [ 90.548897][ T9] Registered IR keymap rc-empty [ 90.549709][ T9] rc rc0: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001C/rc/rc0 [ 90.568399][ T9] input: syz0 as /devices/virtual/misc/uhid/0003:04D8:C002.001C/rc/rc0/input60 [ 90.583502][ T9] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 90.593225][ T9] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9, name: kworker/0:0 [ 90.593244][ T9] preempt_count: 0, expected: 0 [ 90.593253][ T9] RCU nest depth: 1, expected: 0 [ 90.593263][ T9] locks held by kworker/0:0/9: 5, last CPU#0: [ 90.593277][ T9] #0: ffff88813ff27938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 90.593338][ T9] #1: ffffc900000e7c40 ((work_completion)(&uhid->worker)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 90.593391][ T9] #2: ffff88803de75a90 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 [ 90.593443][ T9] #3: ffff88802a6341a8 (&data->lock){+.+.}-{3:3}, at: picolcd_set_contrast+0x132/0x2f0 [ 90.593496][ T9] #4: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 90.593558][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT_{RT,(full)} [ 90.593583][ T9] Tainted: [W]=WARN [ 90.593590][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 90.593601][ T9] Workqueue: events uhid_device_add_worker [ 90.593628][ T9] Call Trace: [ 90.593635][ T9] [ 90.593643][ T9] dump_stack_lvl+0xe8/0x150 [ 90.593673][ T9] __might_resched+0x31b/0x470 [ 90.593707][ T9] __kmalloc_noprof+0xec/0x790 [ 90.593730][ T9] ? rt_spin_unlock+0x165/0x200 [ 90.593755][ T9] ? __hid_request+0xb2/0x490 [ 90.593776][ T9] ? __hid_request+0xb2/0x490 [ 90.593800][ T9] ? __wake_up_common_lock+0x190/0x1f0