ci2-android-5-10/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-10/syz-executor3534708162 <...> syzkaller syzkaller login: [ 14.687919][ T24] kauditd_printk_skb: 31 callbacks suppressed [ 14.687932][ T24] audit: type=1400 audit(1786468746.560:59): avc: denied { transition } for pid=217 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.699998][ T24] audit: type=1400 audit(1786468746.560:60): avc: denied { noatsecure } for pid=217 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.710221][ T24] audit: type=1400 audit(1786468746.570:61): avc: denied { write } for pid=217 comm="sh" path="pipe:[14017]" dev="pipefs" ino=14017 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.732577][ T24] audit: type=1400 audit(1786468746.570:62): avc: denied { rlimitinh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.751905][ T24] audit: type=1400 audit(1786468746.570:63): avc: denied { siginh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.152' (ED25519) to the list of known hosts. execve("ci2-android-5-10/syz-executor3534708162", ["ci2-android-5-10/syz-executor3534708162"], 0x7ffd26e91ee0 /* 10 vars */) = 0 brk(NULL) = 0x555564ed1000 brk(0x555564ed1d40) = 0x555564ed1d40 arch_prctl(ARCH_SET_FS, 0x555564ed13c0) = 0 set_tid_address(0x555564ed1690) = 297 set_robust_list(0x555564ed16a0, 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}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-5-10/syz-executor3534708162", 4096) = 45 getrandom("\xd0\x81\x6c\x68\x14\x88\x74\x9c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564ed1d40 brk(0x555564ef2d40) = 0x555564ef2d40 brk(0x555564ef3000) = 0x555564ef3000 mprotect(0x7f1b59176000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555564ed1690) = 298 ci2-android-5-10/strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x555564ed16a0, 24) = 0 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] rt_sigprocmask(SIG_SETMASK, [] [pid 298] <... openat resumed>) = 3 [pid 297] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 298] write(3, "1000", 4) = 4 [pid 298] close(3) = 0 [pid 298] write(1, "executing program\n", 18) = 18 executing program [pid 298] openat(AT_FDCWD, "/dev/raw-gadget", O_RDWR) = 3 [pid 298] ioctl(3, USB_RAW_IOCTL_INIT, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [ 38.191078][ T24] audit: type=1400 audit(1786468770.060:64): avc: denied { execmem } for pid=297 comm="syz-executor353" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 38.212686][ T24] audit: type=1400 audit(1786468770.080:65): avc: denied { read write } for pid=298 comm="syz-executor353" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 38.236480][ T24] audit: type=1400 audit(1786468770.090:66): avc: denied { open } for pid=298 comm="syz-executor353" path="/dev/raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 38.260123][ T24] audit: type=1400 audit(1786468770.090:67): avc: denied { ioctl } for pid=298 comm="syz-executor353" path="/dev/raw-gadget" dev="devtmpfs" ino=253 ioctlcmd=0x5500 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 18 [ 38.487196][ T15] usb 1-1: new high-speed USB device number 2 using dummy_hcd [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 18 [ 38.727091][ T15] usb 1-1: Using ep0 maxpacket: 16 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 9 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [ 38.887190][ T15] usb 1-1: unable to get BOS descriptor or descriptor too short [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 96 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 4 [ 38.967161][ T15] usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config [ 38.977387][ T15] usb 1-1: config 1 interface 2 altsetting 1 has 0 endpoint descriptors, different from the interface descriptor's value: 1 [ 38.990649][ T15] usb 1-1: config 1 interface 2 has no altsetting 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 8 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 8 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc620ba060) = 8 [pid 298] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_VBUS_DRAW, 0x4) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_CONFIGURE, 0) = 0 [pid 298] ioctl(3, USB_RAW_IOCTL_EP0_READ, 0x7ffc620ba060) = 0 [ 39.157174][ T15] usb 1-1: New USB device found, idVendor=2a39, idProduct=3fd2, bcdDevice= 0.40 [ 39.166340][ T15] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.174370][ T15] usb 1-1: Product: syz [ 39.178551][ T15] usb 1-1: Manufacturer: syz [ 39.183224][ T15] usb 1-1: SerialNumber: syz [pid 298] mkdirat(AT_FDCWD, "./sys", 0777) = 0 [pid 298] mount(NULL, "./sys", "sysfs", 0, NULL) = 0 [pid 298] openat(AT_FDCWD, "./sys/bus/usb/drivers_autoprobe", O_WRONLY) = 4 [pid 298] write(4, "0", 1) = 1 [pid 298] exit_group(0) = ? [pid 298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=298, 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|SIGCHLD, child_tidptr=0x555564ed1690) = 302 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-5-10/strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x555564ed16a0, 24) = 0 [pid 302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 302] setpgid(0, 0) = 0 [pid 302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 302] write(3, "1000", 4) = 4 [pid 302] close(3) = 0 executing program [pid 302] write(1, "executing program\n", 18) = 18 [pid 302] openat(AT_FDCWD, "/dev/raw-gadget", O_RDWR) = 3 [pid 302] ioctl(3, USB_RAW_IOCTL_INIT, 0x7ffc620bb070) = 0 [pid 302] ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 [pid 302] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc620bb070) = 0 [ 39.428510][ T24] audit: type=1400 audit(1786468771.300:68): avc: denied { mounton } for pid=298 comm="syz-executor353" path="/root/sys" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 39.451088][ T24] audit: type=1400 audit(1786468771.300:69): avc: denied { mount } for pid=298 comm="syz-executor353" name="/" dev="sysfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysfs_t tclass=filesystem permissive=1 [ 39.507320][ T15] usb 1-1: 1:1 : UAC_AS_GENERAL descriptor not found [ 39.527171][ T15] usb 1-1: selecting invalid altsetting 0 [ 39.536127][ T15] usb 1-1: USB disconnect, device number 2 [ 39.543494][ T15] general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN [ 39.555231][ T15] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 39.563644][ T15] CPU: 0 PID: 15 Comm: kworker/0:1 Not tainted syzkaller #0 [ 39.570913][ T15] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 39.580986][ T15] Workqueue: usb_hub_wq hub_event [ 39.586033][ T15] RIP: 0010:klist_remove+0x150/0x300 [ 39.591318][ T15] Code: 28 02 49 89 df 49 c1 ef 03 43 80 3c 27 00 74 08 48 89 df e8 d2 68 45 ff 4c 8b 33 49 83 e6 fe 49 8d 7e 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 b4 68 45 ff 49 8b 46 20 48 89 44 24 18 4c [ 39.610915][ T15] RSP: 0018:ffffc900000f76a0 EFLAGS: 00010202 [ 39.616976][ T15] RAX: 0000000000000004 RBX: ffff88810b2a8048 RCX: 0000000000000000 [ 39.624964][ T15] RDX: 0000000000000000 RSI: ffffffff8676f940 RDI: 0000000000000020 [ 39.633219][ T15] RBP: ffffc900000f7798 R08: 0000000000000003 R09: 0000000000000004 [ 39.644958][ T15] R10: dffffc0000000000 R11: fffff5200001eec4 R12: dffffc0000000000 [ 39.653985][ T15] R13: 1ffff9200001eed8 R14: 0000000000000000 R15: 1ffff11021655009 [ 39.661973][ T15] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 39.670935][ T15] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.677549][ T15] CR2: 000056345d7f4a00 CR3: 000000010dc35000 CR4: 00000000003506b0 [ 39.685528][ T15] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.693501][ T15] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.701485][ T15] Call Trace: [ 39.704783][ T15] ? __kasan_check_write+0x14/0x20 [ 39.709896][ T15] ? mutex_lock+0x92/0xf0 [ 39.714231][ T15] ? klist_del+0x100/0x100 [ 39.718655][ T15] ? __kasan_check_write+0x14/0x20 [ 39.724203][ T15] ? mutex_unlock+0x1c/0x40 [ 39.728713][ T15] ? device_links_driver_cleanup+0x7f2/0x820 [ 39.734710][ T15] ? pm_runtime_reinit+0xd3/0x250 [ 39.739734][ T15] device_release_driver_internal+0x67e/0x7c0 [ 39.745797][ T15] device_release_driver+0x19/0x20 [ 39.750904][ T15] bus_remove_device+0x2df/0x340 [ 39.755838][ T15] device_del+0x62e/0xe60 [ 39.760170][ T15] ? kill_device+0xd0/0xd0 [ 39.764591][ T15] ? __kasan_check_write+0x14/0x20 [ 39.769724][ T15] usb_disable_device+0x3a8/0x750 [ 39.774768][ T15] usb_disconnect+0x32d/0x870 [ 39.779450][ T15] hub_event+0x19c2/0x4220 [ 39.783871][ T15] ? usb_autopm_get_interface_no_resume+0x90/0x90 [ 39.790308][ T15] ? hub_post_resume+0x120/0x120 [ 39.795255][ T15] ? __kasan_check_read+0x11/0x20 [ 39.800286][ T15] ? read_word_at_a_time+0x12/0x20 [ 39.805396][ T15] ? strscpy+0x9b/0x290 [ 39.809574][ T15] process_one_work+0x6fd/0xbc0 [ 39.814429][ T15] worker_thread+0xd1c/0x13c0 [ 39.819115][ T15] kthread+0x324/0x3b0 [ 39.823180][ T15] ? worker_clr_flags+0x190/0x190 [ 39.828216][ T15] ? kthread_blkcg+0xd0/0xd0 [ 39.832807][ T15] ret_from_fork+0x1f/0x30 [ 39.837238][ T15] Modules linked in: [ 39.842759][ T24] audit: type=1400 audit(1786468771.720:70): avc: denied { read } for pid=77 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 39.846792][ T15] ---[ end trace 9295c950aa600471 ]--- [ 39.871063][ T15] RIP: 0010:klist_remove+0x150/0x300 [ 39.873290][ T24] audit: type=1400 audit(1786468771.720:71): avc: denied { search } for pid=77 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 39.879172][ T15] Code: 28 02 49 89 df 49 c1 ef 03 43 80 3c 27 00 74 08 48 89 df e8 d2 68 45 ff 4c 8b 33 49 83 e6 fe 49 8d 7e 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 b4 68 45 ff 49 8b 46 20 48 89 44 24 18 4c [ 39.897832][ T24] audit: type=1400 audit(1786468771.720:72): avc: denied { write } for pid=77 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 39.918127][ T15] RSP: 0018:ffffc900000f76a0 EFLAGS: 00010202 [ 39.938652][ T24] audit: type=1400 audit(1786468771.720:73): avc: denied { add_name } for pid=77 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 39.938882][ T15] [ 39.967623][ T15] RAX: 0000000000000004 RBX: ffff88810b2a8048 RCX: 0000000000000000 [ 39.975591][ T15] RDX: 0000000000000000 RSI: ffffffff8676f940 RDI: 0000000000000020 [ 39.983639][ T15] RBP: ffffc900000f7798 R08: 0000000000000003 R09: 0000000000000004 [ 39.991657][ T15] R10: dffffc0000000000 R11: fffff5200001eec4 R12: dffffc0000000000 [ 39.999706][ T15] R13: 1ffff9200001eed8 R14: 0000000000000000 R15: 1ffff11021655009 [ 40.007722][ T15] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 40.016657][ T15] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.023280][ T15] CR2: 00007ffe0e8b7598 CR3: 00000001009af000 CR4: 00000000003506b0 [ 40.031285][ T15] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.039290][ T15] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.047297][ T15] Kernel panic - not syncing: Fatal exception [ 40.053625][ T15] Kernel Offset: disabled [ 40.057956][ T15] Rebooting in 86400 seconds..