./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor335631963

<...>
Warning: Permanently added '10.128.1.248' (ED25519) to the list of known hosts.
execve("./syz-executor335631963", ["./syz-executor335631963"], 0x7ffea9fccdb0 /* 10 vars */) = 0
brk(NULL)                               = 0x555592b9b000
brk(0x555592b9bd00)                     = 0x555592b9bd00
arch_prctl(ARCH_SET_FS, 0x555592b9b380) = 0
set_tid_address(0x555592b9b650)         = 5848
set_robust_list(0x555592b9b660, 24)     = 0
rseq(0x555592b9bca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor335631963", 4096) = 27
getrandom("\x76\x4b\x25\x14\x5a\xa2\x0e\x1e", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555592b9bd00
brk(0x555592bbcd00)                     = 0x555592bbcd00
brk(0x555592bbd000)                     = 0x555592bbd000
mprotect(0x7fd4b410a000, 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
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached
, child_tidptr=0x555592b9b650) = 5849
[pid  5849] set_robust_list(0x555592b9b660, 24) = 0
[pid  5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5849] getppid()                   = 0
[pid  5849] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5849] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5849] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5849] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5849] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5849] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5849] unshare(CLONE_NEWNS)        = 0
[pid  5849] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5849] unshare(CLONE_NEWIPC)       = 0
[pid  5849] unshare(CLONE_NEWCGROUP)    = 0
[pid  5849] unshare(CLONE_NEWUTS)       = 0
[pid  5849] unshare(CLONE_SYSVSEM)      = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "16777216", 8)     = 8
[pid  5849] close(3)                    = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "536870912", 9)    = 9
[pid  5849] close(3)                    = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "1024", 4)         = 4
[pid  5849] close(3)                    = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "8192", 4)         = 4
[pid  5849] close(3)                    = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "1024", 4)         = 4
[pid  5849] close(3)                    = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "1024", 4)         = 4
[pid  5849] close(3)                    = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5849] close(3)                    = 0
[pid  5849] getpid()                    = 1
[pid  5849] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5849] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5849] unshare(CLONE_NEWNET)       = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "0 65535", 7)      = 7
[pid  5849] close(3)                    = 0
[pid  5849] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid  5849] write(3, "100000", 6)       = 6
[pid  5849] close(3)                    = 0
[pid  5849] mkdir("./syz-tmp", 0777)    = 0
[pid  5849] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid  5849] mkdir("./syz-tmp/newroot", 0777) = 0
[pid  5849] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid  5849] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5849] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid  5849] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid  5849] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid  5849] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5849] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5849] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid  5849] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5849] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5849] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5849] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5849] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid  5849] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5849] mkdir("./syz-tmp/pivot", 0777) = 0
[pid  5849] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid  5849] chdir("/")                  = 0
[pid  5849] umount2("./pivot", MNT_DETACH) = 0
[pid  5849] chroot("./newroot")         = 0
[pid  5849] chdir("/")                  = 0
[pid  5849] mkdir("/dev/gadgetfs", 0777) = 0
[pid  5849] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = 0
[pid  5849] mkdir("/dev/binderfs", 0777) = 0
[pid  5849] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5849] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5849] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5849] write(1, "executing program\n", 18executing program
) = 18
[pid  5849] bpf(BPF_PROG_LOAD, {prog_type=0x20 /* BPF_PROG_TYPE_??? */, insn_cnt=3, insns=0x200000000200, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 148) = 3
[pid  5849] bpf(BPF_LINK_CREATE, {link_create={prog_fd=3, target_fd=0, attach_type=0x2d /* BPF_??? */, flags=0}, ...}, 32) = 4
[pid  5849] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 5
[pid  5849] sendto(5, NULL, 0, 0, {sa_family=AF_INET, sin_port=htons(20000), sin_addr=inet_addr("0.0.0.0")}, 16) = -1 EPERM (Operation not permitted)
[pid  5849] exit_group(1)               = ?
[   74.132544][ T5849] BUG: assuming non migratable context at ./include/linux/filter.h:703
[   74.140896][ T5849] in_atomic(): 0, irqs_disabled(): 0, migration_disabled() 0 pid: 5849, name: syz-executor335
[   74.151283][ T5849] 1 lock held by syz-executor335/5849:
[   74.156943][ T5849]  #0: ffffffff8e13eca0 (rcu_read_lock){....}-{1:3}, at: nf_hook+0x9d/0x380
[   74.165816][ T5849] CPU: 1 UID: 0 PID: 5849 Comm: syz-executor335 Not tainted 6.16.0-rc6-next-20250714-syzkaller #0 PREEMPT(full) 
[   74.165835][ T5849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   74.165850][ T5849] Call Trace:
[   74.165856][ T5849]  <TASK>
[   74.165862][ T5849]  dump_stack_lvl+0x189/0x250
[   74.165887][ T5849]  ? __pfx_dump_stack_lvl+0x10/0x10
[   74.165910][ T5849]  ? print_lock_name+0xde/0x100
[   74.165934][ T5849]  __cant_migrate+0x238/0x2e0
[   74.165956][ T5849]  ? __pfx___cant_migrate+0x10/0x10
[   74.165972][ T5849]  ? get_random_u32+0x4df/0x940
[   74.166009][ T5849]  nf_hook_run_bpf+0x8f/0x1f0
[   74.166029][ T5849]  ? __pfx_nf_hook_run_bpf+0x10/0x10
[   74.166048][ T5849]  ? nf_hook+0x9d/0x380
[   74.166069][ T5849]  ? apparmor_ip_postroute+0xcb/0x200
[   74.166090][ T5849]  ? __pfx_nf_hook_run_bpf+0x10/0x10
[   74.166107][ T5849]  nf_hook_slow+0xc5/0x220
[   74.166133][ T5849]  nf_hook+0x217/0x380
[   74.166159][ T5849]  ? nf_hook+0x9d/0x380
[   74.166180][ T5849]  ? __pfx_nf_hook+0x10/0x10
[   74.166205][ T5849]  ? __pfx_ip_finish_output+0x10/0x10
[   74.166236][ T5849]  ? ip_fast_csum+0x1ee/0x2b0
[   74.166254][ T5849]  ip_output+0x16c/0x220
[   74.166267][ T5849]  ? __pfx_ip_finish_output+0x10/0x10
[   74.166294][ T5849]  ip_send_skb+0x74/0x100
[   74.166313][ T5849]  udp_send_skb+0xaf1/0x14c0
[   74.166350][ T5849]  udp_sendmsg+0x1962/0x2300
[   74.166382][ T5849]  ? __pfx_ip_generic_getfrag+0x10/0x10
[   74.166398][ T5849]  ? __pfx_udp_sendmsg+0x10/0x10
[   74.166445][ T5849]  ? __local_bh_enable_ip+0x12d/0x1c0
[   74.166467][ T5849]  ? inet_sendmsg+0x14f/0x370
[   74.166485][ T5849]  ? inet_sendmsg+0x29c/0x370
[   74.166505][ T5849]  __sock_sendmsg+0x19c/0x270
[   74.166526][ T5849]  __sys_sendto+0x3bd/0x520
[   74.166548][ T5849]  ? __pfx___sys_sendto+0x10/0x10
[   74.166581][ T5849]  ? lockdep_hardirqs_on+0x9c/0x150
[   74.166626][ T5849]  ? rcu_is_watching+0x15/0xb0
[   74.166649][ T5849]  __x64_sys_sendto+0xde/0x100
[   74.166674][ T5849]  do_syscall_64+0xfa/0x3b0
[   74.166694][ T5849]  ? lockdep_hardirqs_on+0x9c/0x150
[   74.166713][ T5849]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   74.166730][ T5849]  ? clear_bhb_loop+0x60/0xb0
[   74.166749][ T5849]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   74.166765][ T5849] RIP: 0033:0x7fd4b4096b79
[   74.166785][ T5849] 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
[   74.166798][ T5849] RSP: 002b:00007fffc7aef6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   74.166821][ T5849] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd4b4096b79
[   74.166832][ T5849] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
[pid  5849] +++ exited with 1 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=1, si_utime=0, si_stime=13 /* 0.13 s */} ---
exit_group(0)                           = ?
+++ exited with 0 +++
[   74.