ci-upstream-rust-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-rust-kasan-gce/syz-executor3887665291 <...> [ 91.885646][ T200] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.187' (ED25519) to the list of known hosts. execve("ci-upstream-rust-kasan-gce/syz-executor3887665291", ["ci-upstream-rust-kasan-gce/syz-executor3887665291"], 0x7ffdf1e76830 /* 10 vars */) = 0 brk(NULL) = 0x555588cf0000 brk(0x555588cf0d80) = 0x555588cf0d80 arch_prctl(ARCH_SET_FS, 0x555588cf0400) = 0 set_tid_address(0x555588cf06d0) = 5610 set_robust_list(0x555588cf06e0, 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/ci-upstream-rust-kasan-gce/syz-executor3887665291", 4096) = 55 getrandom("\xdf\x1f\x76\xd4\x86\x99\x06\x81", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555588cf0d80 brk(0x555588d11d80) = 0x555588d11d80 brk(0x555588d12000) = 0x555588d12000 mprotect(0x7f322f191000, 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|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5611 attached , child_tidptr=0x555588cf06d0) = 5611 [pid 5611] set_robust_list(0x555588cf06e0, 24) = 0 [pid 5610] rt_sigprocmask(SIG_SETMASK, [] [pid 5611] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5610] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5611] setpgid(0, 0) = 0 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5611] write(3, "1000", 4) = 4 [pid 5611] close(3) = 0 [pid 5611] write(1, "executing program\n", 18) = 18 executing program [pid 5611] mkdirat(AT_FDCWD, "./my_configfs", 0777) = 0 [pid 5611] mount(NULL, "./my_configfs", "configfs", 0, NULL) = 0 [pid 5611] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1", 0777) = 0 [pid 5611] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1", 0777) = 0 [pid 5611] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0", 0777) = 0 [pid 5611] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0/ep.0/block.0/direction", O_WRONLY) = 3 [pid 5611] write(3, "1", 1) = 1 [pid 5611] symlinkat("./my_configfs/usb_gadget/g1/functions/midi2.usb0", AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1/midi2.usb0") = 0 [pid 5611] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/UDC", O_WRONLY) = 4 [pid 5611] write(4, "dummy_udc.0", 11) = 11 [pid 5611] exit_group(0) = ? [pid 5611] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5611, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 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|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5616 attached , child_tidptr=0x555588cf06d0) = 5616 [pid 5616] set_robust_list(0x555588cf06e0, 24) = 0 [pid 5610] rt_sigprocmask(SIG_SETMASK, [] [pid 5616] rt_sigprocmask(SIG_SETMASK, [] [pid 5610] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5616] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5616] setpgid(0, 0) = 0 [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5616] write(3, "1000", 4) = 4 [pid 5616] close(3) = 0 executing program [pid 5616] write(1, "executing program\n", 18) = 18 [pid 5616] mkdirat(AT_FDCWD, "./my_configfs", 0777) = -1 EEXIST (File exists) [pid 5616] mount(NULL, "./my_configfs", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5616] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5616] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1", 0777) = -1 EEXIST (File exists) [pid 5616] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0", 0777) = -1 EEXIST (File exists) [pid 5616] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0/ep.0/block.0/direction", O_WRONLY) = 3 [pid 5616] write(3, "1", 1) = -1 EBUSY (Device or resource busy) [pid 5616] symlinkat("./my_configfs/usb_gadget/g1/functions/midi2.usb0", AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1/midi2.usb0") = -1 EEXIST (File exists) [pid 5616] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/UDC", O_WRONLY) = 4 [pid 5616] write(4, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5616] exit_group(0) = ? [pid 5616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5616, 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|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5617 attached , child_tidptr=0x555588cf06d0) = 5617 [pid 5617] set_robust_list(0x555588cf06e0, 24) = 0 [pid 5610] rt_sigprocmask(SIG_SETMASK, [] [pid 5617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5610] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5617] setpgid(0, 0) = 0 [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5617] write(3, "1000", 4) = 4 [pid 5617] close(3) = 0 [pid 5617] write(1, "executing program\n", 18) = 18 executing program [ 95.963733][ T10] usb 1-1: new high-speed USB device number 2 using dummy_hcd [pid 5617] mkdirat(AT_FDCWD, "./my_configfs", 0777) = -1 EEXIST (File exists) [pid 5617] mount(NULL, "./my_configfs", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5617] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5617] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1", 0777) = -1 EEXIST (File exists) [pid 5617] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0", 0777) = -1 EEXIST (File exists) [pid 5617] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0/ep.0/block.0/direction", O_WRONLY) = 3 [pid 5617] write(3, "1", 1) = -1 EBUSY (Device or resource busy) [pid 5617] symlinkat("./my_configfs/usb_gadget/g1/functions/midi2.usb0", AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1/midi2.usb0") = -1 EEXIST (File exists) [pid 5617] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/UDC", O_WRONLY) = 4 [pid 5617] write(4, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5617] exit_group(0) = ? [pid 5617] +++ exited with 0 +++ [ 96.119485][ T10] usb 1-1: Dual-Role OTG device on HNP port [ 96.119783][ T10] usb 1-1: New USB device found, idVendor=0000, idProduct=0000, bcdDevice= 7.02 [ 96.119802][ T10] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5617, 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|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5618 attached , child_tidptr=0x555588cf06d0) = 5618 [pid 5610] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5618] set_robust_list(0x555588cf06e0, 24) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 96.182056][ T10] gspca_main: spca501-2.14.0 probing 0000:0000 [ 96.194708][ T10] gspca_spca501: reg write: error -32 [ 96.194725][ T10] spca501 1-1:1.0: Reg write failed for 0x02,0x0f,0x05 [ 96.195613][ T10] spca501 1-1:1.0: probe with driver spca501 failed with error -22 [ 96.224308][ C0] Oops: general protection fault, probably for non-canonical address 0xdffffc00000000ee: 0000 [#1] SMP KASAN PTI [ 96.224336][ C0] KASAN: null-ptr-deref in range [0x0000000000000770-0x0000000000000777] [ 96.224374][ C0] CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 96.224400][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 96.224415][ C0] RIP: 0010:f_midi2_stop_eps+0x28e/0x4d0 [ 96.224452][ C0] Code: 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 27 c6 de fa 41 bf 70 07 00 00 4d 03 3e 4c 89 f8 48 c1 e8 03 48 89 44 24 18 <42> 0f b6 04 28 84 c0 0f 85 12 02 00 00 41 8b 1f 31 ff 89 de e8 c9 [ 96.224469][ C0] RSP: 0018:ffffc900001576f8 EFLAGS: 00010206 [ 96.224490][ C0] RAX: 00000000000000ee RBX: ffff888043bdc120 RCX: ffff88801daf0000 [ 96.224507][ C0] RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 [ 96.224522][ C0] RBP: ffff888043bdc100 R08: ffffffff8fd0c47f R09: 1ffffffff1fa188f [ 96.224538][ C0] R10: dffffc0000000000 R11: fffffbfff1fa1890 R12: ffff888043bdc770 [ 96.224555][ C0] R13: dffffc0000000000 R14: ffff888043bdc128 R15: 0000000000000770 [ 96.224582][ C0] FS: 0000000000000000(0000) GS:ffff8881259f2000(0000) knlGS:0000000000000000 [ 96.224602][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.224617][ C0] CR2: 00007f322f0ec6de CR3: 00000000116fe000 CR4: 00000000003526f0 [ 96.224636][ C0] Call Trace: [ 96.224643][ C0] [ 96.224656][ C0] f_midi2_set_alt+0x11c/0xf00 [ 96.224681][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 96.224706][ C0] ? rcu_is_watching+0x15/0xb0 [ 96.224734][ C0] composite_setup+0x1ffd/0x3480 [ 96.224766][ C0] configfs_composite_setup+0xbd/0x100 [ 96.224794][ C0] dummy_timer+0x2ea8/0x4b30 [ 96.224828][ C0] ? __lock_acquire+0x6df/0x2e40 [ 96.224862][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 96.224894][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 96.224925][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 96.224946][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 96.224977][ C0] __hrtimer_run_queues+0x3eb/0xaf0 [ 96.225013][ C0] hrtimer_run_softirq+0x18f/0x260 [ 96.225044][ C0] handle_softirqs+0x1d9/0x6c0 [ 96.225070][ C0] run_ktimerd+0x69/0x100 [ 96.225096][ C0] smpboot_thread_fn+0x57c/0xa80 [ 96.225123][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 96.225157][ C0] kthread+0x388/0x470 [ 96.225179][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 96.225197][ C0] ? __pfx_kthread+0x10/0x10 [ 96.225218][ C0] ret_from_fork+0x514/0xb70 [ 96.225271][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 96.225304][ C0] ? __switch_to+0xc89/0x1420 [ 96.225323][ C0] ? __pfx_kthread+0x10/0x10 [ 96.225344][ C0] ret_from_fork_asm+0x1a/0x30 [ 96.225371][ C0] [ 96.225377][ C0] Modules linked in: [ 96.225409][ C0] ---[ end trace 0000000000000000 ]--- [ 96.225598][ C0] RIP: 0010:f_midi2_stop_eps+0x28e/0x4d0 [ 96.225620][ C0] Code: 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 27 c6 de fa 41 bf 70 07 00 00 4d 03 3e 4c 89 f8 48 c1 e8 03 48 89 44 24 18 <42> 0f b6 04 28 84 c0 0f 85 12 02 00 00 41 8b 1f 31 ff 89 de e8 c9 [ 96.225632][ C0] RSP: 0018:ffffc900001576f8 EFLAGS: 00010206 [ 96.225646][ C0] RAX: 00000000000000ee RBX: ffff888043bdc120 RCX: ffff88801daf0000 [ 96.225657][ C0] RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 [ 96.225666][ C0] RBP: ffff888043bdc100 R08: ffffffff8fd0c47f R09: 1ffffffff1fa188f [ 96.225678][ C0] R10: dffffc0000000000 R11: fffffbfff1fa1890 R12: ffff888043bdc770 [ 96.225690][ C0] R13: dffffc0000000000 R14: ffff888043bdc128 R15: 0000000000000770 [ 96.225701][ C0] FS: 0000000000000000(0000) GS:ffff8881259f2000(0000) knlGS:0000000000000000 [ 96.225713][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.225724][ C0] CR2: 00007f322f0ec6de CR3: 00000000116fe000 CR4: 00000000003526f0 [ 96.225739][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 96.226347][ C0] Kernel Offset: disabled