ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor2664252816 <...> syzkaller syzkaller login: [ 14.540421][ T28] kauditd_printk_skb: 31 callbacks suppressed [ 14.540437][ T28] audit: type=1400 audit(1786959156.670:59): avc: denied { transition } for pid=225 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 [ 14.545382][ T28] audit: type=1400 audit(1786959156.670:60): avc: denied { noatsecure } for pid=225 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.549606][ T28] audit: type=1400 audit(1786959156.680:61): avc: denied { write } for pid=225 comm="sh" path="pipe:[14613]" dev="pipefs" ino=14613 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.553699][ T28] audit: type=1400 audit(1786959156.680:62): avc: denied { rlimitinh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.557041][ T28] audit: type=1400 audit(1786959156.680:63): avc: denied { siginh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.188' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor2664252816", ["ci2-android-6-1/syz-executor2664252816"], 0x7ffde77f1140 /* 10 vars */) = 0 brk(NULL) = 0x55557824b000 brk(0x55557824bd40) = 0x55557824bd40 arch_prctl(ARCH_SET_FS, 0x55557824b3c0) = 0 set_tid_address(0x55557824b690) = 305 set_robust_list(0x55557824b6a0, 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-6-1/syz-executor2664252816", 4096) = 44 getrandom("\x66\xb1\x24\x8d\x74\x4f\xee\x9e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557824bd40 brk(0x55557826cd40) = 0x55557826cd40 brk(0x55557826d000) = 0x55557826d000 mprotect(0x7fb2ce152000, 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 executing program write(1, "executing program\n", 18) = 18 mkdirat(AT_FDCWD, "./my_config", 0777) = 0 mount(NULL, "./my_config", "configfs", 0, NULL) = 0 mkdirat(AT_FDCWD, "./my_config/usb_gadget/g1", 0777) = 0 mkdirat(AT_FDCWD, "./my_config/usb_gadget/g1/functions/uac2.usb0", 0777) = 0 openat(AT_FDCWD, "./my_config/usb_gadget/g1/functions/uac2.usb0/c_srate", O_WRONLY) = 3 [ 24.723901][ T28] audit: type=1400 audit(1786959166.850:64): avc: denied { execmem } for pid=305 comm="syz-executor266" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.742853][ T305] ================================================================================ [ 24.752814][ T305] UBSAN: array-index-out-of-bounds in drivers/usb/gadget/function/f_uac2.c:2082:1 [ 24.756557][ T28] audit: type=1400 audit(1786959166.860:65): avc: denied { mounton } for pid=305 comm="syz-executor266" path="/root/my_config" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 24.764576][ T305] index 10 is out of range for type 'int[10]' [ 24.786413][ T28] audit: type=1400 audit(1786959166.860:66): avc: denied { mount } for pid=305 comm="syz-executor266" name="/" dev="configfs" ino=6135 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=filesystem permissive=1 [ 24.791372][ T305] CPU: 1 PID: 305 Comm: syz-executor266 Not tainted syzkaller #0 [ 24.815238][ T28] audit: type=1400 audit(1786959166.870:67): avc: denied { search } for pid=305 comm="syz-executor266" name="/" dev="configfs" ino=6135 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 24.822096][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 24.845048][ T28] audit: type=1400 audit(1786959166.870:68): avc: denied { write } for pid=305 comm="syz-executor266" name="usb_gadget" dev="configfs" ino=6136 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 24.854499][ T305] Call Trace: [ 24.878119][ T28] audit: type=1400 audit(1786959166.870:69): avc: denied { add_name } for pid=305 comm="syz-executor266" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 24.880757][ T305] [ 24.880766][ T305] __dump_stack+0x21/0x24 [ 24.901650][ T28] audit: type=1400 audit(1786959166.870:70): avc: denied { create } for pid=305 comm="syz-executor266" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:configfs_t tclass=dir permissive=1 [ 24.904529][ T305] dump_stack_lvl+0x110/0x170 [ 24.909351][ T28] audit: type=1400 audit(1786959166.870:71): avc: denied { write } for pid=305 comm="syz-executor266" name="c_srate" dev="configfs" ino=15374 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 24.928925][ T305] ? __cfi_dump_stack_lvl+0x8/0x8 [ 24.928959][ T305] dump_stack+0x15/0x24 [ 24.934354][ T28] audit: type=1400 audit(1786959166.870:72): avc: denied { open } for pid=305 comm="syz-executor266" path="/root/my_config/usb_gadget/g1/functions/uac2.usb0/c_srate" dev="configfs" ino=15374 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 24.956554][ T305] ubsan_epilogue+0xe/0x40 [ 24.956589][ T305] __ubsan_handle_out_of_bounds+0xdf/0xf0 [ 25.003216][ T305] f_uac2_opts_c_srate_store+0x1d7/0x2a0 [ 25.008961][ T305] ? __cfi_f_uac2_opts_c_srate_store+0x10/0x10 [ 25.015123][ T305] ? down_read+0xa6/0xf0 [ 25.019458][ T305] ? __cfi_down_read+0x10/0x10 [ 25.024217][ T305] ? avc_policy_seqno+0x1b/0x70 [ 25.029165][ T305] ? selinux_file_permission+0x2a5/0x510 [ 25.034832][ T305] configfs_write_iter+0x323/0x410 [ 25.039981][ T305] ? __cfi_f_uac2_opts_c_srate_store+0x10/0x10 [ 25.046148][ T305] vfs_write+0x5ef/0xd00 [ 25.050396][ T305] ? __cfi_vfs_write+0x10/0x10 [ 25.055160][ T305] ? memset+0x35/0x40 [ 25.059147][ T305] ? __kasan_check_read+0x11/0x20 [ 25.064170][ T305] ? __fdget_pos+0x2d4/0x380 [ 25.068764][ T305] ksys_write+0x14a/0x260 [ 25.073092][ T305] ? __cfi_ksys_write+0x10/0x10 [ 25.077942][ T305] ? fpregs_restore_userregs+0x128/0x260 [ 25.083577][ T305] __x64_sys_write+0x7b/0x90 [ 25.088166][ T305] x64_sys_call+0x27b/0x9a0 [ 25.092676][ T305] do_syscall_64+0x4c/0xa0 [ 25.097094][ T305] ? clear_bhb_loop+0x30/0x80 [ 25.101767][ T305] ? clear_bhb_loop+0x30/0x80 [ 25.106438][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.112342][ T305] RIP: 0033:0x7fb2ce0c1d39 [ 25.116861][ T305] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 25.136553][ T305] RSP: 002b:00007ffcb8fe9c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 25.144985][ T305] RAX: ffffffffffffffda RBX: 6e6f635f796d2f2e RCX: 00007fb2ce0c1d39 [ 25.152956][ T305] RDX: 0000000000000053 RSI: 0000200000000440 RDI: 0000000000000003 [ 25.160927][ T305] RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffcb8fe9d78 write(3, "\x34\x34\x31\x30\x30\x2c\x34\x38\x30\x30\x30\x2c\x38\x38\x32\x30\x30\x2c\x39\x36\x30\x30\x30\x2c\x31\x37\x36\x34\x30\x30\x2c\x31\x39\x32\x30\x30\x30\x2c\x33\x35\x32\x38\x30\x30\x2c\x33\x38\x34\x30\x30\x30\x2c\x37\x30\x35\x36\x30\x30\x2c\x37\x36\x38\x30\x30\x30\x2c\x31\x34\x31\x31\x32\x30\x30\x2c\x31\x35\x33\x36\x30\x30\x30\x00\x00", 83) = 83 exit_group(0) = ? +++ exited with 0 +++ [ 25.168898][ T305] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcb