./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1123832305 <...> Warning: Permanently added '10.128.0.176' (ED25519) to the list of known hosts. execve("./syz-executor1123832305", ["./syz-executor1123832305"], 0x7ffc242c7a90 /* 10 vars */) = 0 brk(NULL) = 0x5555798ad000 brk(0x5555798ade00) = 0x5555798ade00 arch_prctl(ARCH_SET_FS, 0x5555798ad480) = 0 set_tid_address(0x5555798ad750) = 296 set_robust_list(0x5555798ad760, 24) = 0 rseq(0x5555798adda0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1123832305", 4096) = 28 getrandom("\xe8\x2c\x39\x0c\x8a\xc8\x60\x60", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555798ade00 brk(0x5555798cee00) = 0x5555798cee00 brk(0x5555798cf000) = 0x5555798cf000 mprotect(0x7f7939ede000, 16384, 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_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f7939e39d80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f7939e41310}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f7939e39d80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f7939e41310}, NULL, 8) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555798ad750) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x5555798ad760, 24) = 0 [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] getppid() = 0 [pid 297] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 297] unshare(CLONE_NEWNS) = 0 [pid 297] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 297] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 297] unshare(CLONE_NEWCGROUP) = 0 [pid 297] unshare(CLONE_NEWUTS) = 0 [pid 297] unshare(CLONE_SYSVSEM) = 0 [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] getpid() = 1 [pid 297] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 31 c0 e9 b6 00 00 00 41 83 fd 0a 0f 87 aa 00 00 00 44 89 6c [ 20.561563][ T36] audit: type=1400 audit(1750307923.000:73): avc: denied { mounton } for pid=297 comm="syz-executor112" path="/dev/gadgetfs" dev="devtmpfs" ino=434 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 20.581352][ T297] RSP: 0018:ffffc900011ff680 EFLAGS: 00010246 [ 20.630192][ T297] RAX: 0000000000000000 RBX: 1ffff9200023fed4 RCX: 0000000000000000 [ 20.638205][ T297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900011ff728 [ 20.646212][ T297] RBP: ffffc900011ff7a8 R08: ffffc900011ff727 R09: 0000000000000000 [ 20.654197][ T297] R10: ffffc900011ff710 R11: fffff5200023fee5 R12: ffffc900011ff6c0 [ 20.662191][ T297] R13: 0000000000000015 R14: dffffc0000000000 R15: 0000000000000000 [ 20.670155][ T297] FS: 00005555798ad480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 20.679105][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.685704][ T297] CR2: 0000200000004000 CR3: 000000010f672000 CR4: 00000000003526b0 [ 20.693706][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.701688][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.709824][ T297] Call Trace: [ 20.713103][ T297] [ 20.716025][ T297] ? __cfi___alloc_pages_noprof+0x10/0x10 [ 20.721749][ T297] ? __kasan_slab_alloc+0x73/0x90 [ 20.726768][ T297] ? hashtab_init+0xdb/0x1f0 [ 20.731380][ T297] ___kmalloc_large_node+0x9c/0x1d0 [ 20.736757][ T297] ? ebitmap_read+0x21d/0x990 [ 20.741442][ T297] ? hashtab_init+0xdb/0x1f0 [ 20.746026][ T297] __kmalloc_large_node_noprof+0x1e/0xe0 [ 20.751665][ T297] ? hashtab_init+0xdb/0x1f0 [ 20.756357][ T297] __kmalloc_noprof+0x26d/0x450 [ 20.761332][ T297] hashtab_init+0xdb/0x1f0 [ 20.765776][ T297] ? policydb_read+0x86f/0x28c0 [ 20.770681][ T297] symtab_init+0x44/0x70 [ 20.774972][ T297] policydb_read+0x8fe/0x28c0 [ 20.779634][ T297] ? kasan_save_alloc_info+0x40/0x50 [ 20.784938][ T297] ? __cfi_policydb_read+0x10/0x10 [ 20.790086][ T297] ? security_load_policy+0x128/0x12f0 [ 20.795641][ T297] security_load_policy+0x162/0x12f0 [ 20.801035][ T297] ? irqentry_exit+0x4a/0x60 [ 20.805627][ T297] ? exc_page_fault+0x66/0xc0 [ 20.810279][ T297] ? asm_exc_page_fault+0x2b/0x30 [ 20.815309][ T297] ? __cfi_security_load_policy+0x10/0x10 [ 20.821113][ T297] ? rep_movs_alternative+0x4a/0xa0 [ 20.826522][ T297] sel_write_load+0x298/0x5e0 [ 20.831273][ T297] ? __cfi_sel_write_load+0x10/0x10 [ 20.836587][ T297] ? bpf_lsm_file_permission+0xd/0x20 [ 20.842042][ T297] ? __cfi_sel_write_load+0x10/0x10 [ 20.847237][ T297] vfs_write+0x3c0/0xe80 [ 20.851489][ T297] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 20.857031][ T297] ? __cfi_vfs_write+0x10/0x10 [ 20.861815][ T297] ? __asan_memset+0x39/0x50 [ 20.866400][ T297] ? ptrace_stop+0x6c9/0x8c0 [ 20.871028][ T297] ? __kasan_check_read+0x15/0x20 [ 20.876061][ T297] ksys_write+0x141/0x250 [ 20.880375][ T297] ? __cfi_ksys_write+0x10/0x10 [ 20.885324][ T297] ? __kasan_check_write+0x18/0x20 [ 20.890454][ T297] __x64_sys_write+0x7f/0x90 [ 20.895096][ T297] x64_sys_call+0x271c/0x2ee0 [ 20.899795][ T297] do_syscall_64+0x58/0xf0 [ 20.904232][ T297] ? clear_bhb_loop+0x35/0x90 [ 20.908925][ T297] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 20.914861][ T297] RIP: 0033:0x7f7939e6b179 [ 20.919291][ T297] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 20.938923][ T297] RSP: 002b:00007fff7b62c468 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 20.947354][ T297] RAX: ffffffffffffffda RBX: 00007f7939eb415d RCX: 00007f7939e6b179 [ 20.955345][ T297] RDX: 00000000000044f0 RSI: 0000200000000000 RDI: 0000000000000003 [ 20.963359][ T297] RBP: 00007f7939eb412d R08: 00007f7939eb917c R09: 00007f7939eb917c [ 20.971367][ T297] R10: 00007f7939eb917c R11: 0000000000000246 R12: 00007f7939eb917c [ 20.979327][ T297] R13: 00007f7939eb4095 R14: 0000000000000001 R15: 0000000000000001 [ 20.987303][ T297] [ 20.990315][ T297] ---[ end trace 0000000000000000 ]--- [pid 297] write(3, 0x200000000000, 17648) = -1 ENOMEM (Cannot allocate memory) [pid 297] exit_group(1) = ? [pid 297] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=297, si_uid=0, si_status=1, si_utime=0, si_stime=50} --- exit_group(0) = ? +++ exited with 0 +++ [ 20.995975][ T297] SELinux: failed to loa