./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3264162626 <...> Warning: Permanently added '10.128.0.202' (ED25519) to the list of known hosts. execve("./syz-executor3264162626", ["./syz-executor3264162626"], 0x7ffc8a276b50 /* 10 vars */) = 0 brk(NULL) = 0x55557e4d4000 brk(0x55557e4d4d00) = 0x55557e4d4d00 arch_prctl(ARCH_SET_FS, 0x55557e4d4380) = 0 set_tid_address(0x55557e4d4650) = 5096 set_robust_list(0x55557e4d4660, 24) = 0 rseq(0x55557e4d4ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3264162626", 4096) = 28 getrandom("\x21\xcd\x6c\x43\xcd\x6f\xb9\x21", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557e4d4d00 brk(0x55557e4f5d00) = 0x55557e4f5d00 brk(0x55557e4f6000) = 0x55557e4f6000 mprotect(0x7f806d795000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5097 attached , child_tidptr=0x55557e4d4650) = 5097 [pid 5097] set_robust_list(0x55557e4d4660, 24) = 0 [pid 5097] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5097] setsid() = 1 [pid 5097] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5097] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5097] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5097] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5097] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5097] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5097] unshare(CLONE_NEWNS) = 0 [pid 5097] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5097] unshare(CLONE_NEWIPC) = 0 [pid 5097] unshare(CLONE_NEWCGROUP) = 0 [pid 5097] unshare(CLONE_NEWUTS) = 0 [pid 5097] unshare(CLONE_SYSVSEM) = 0 [pid 5097] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "16777216", 8) = 8 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "536870912", 9) = 9 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1024", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "8192", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1024", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1024", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5097] close(3) = 0 [pid 5097] getpid() = 1 [pid 5097] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5100] set_robust_list(0x55557e4d4660, 24 [pid 5097] <... clone resumed>, child_tidptr=0x55557e4d4650) = 2 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5100] setpgid(0, 0) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1000", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5100] read(200, 0x7fff9b41b2c0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5100] write(1, "executing program\n", 18executing program ) = 18 [pid 5100] socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_ALL)) = 3 [pid 5100] ioctl(3, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0 [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=4, insns=0x20000580, license="GPL", 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=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144) = 4 [pid 5100] bpf(BPF_LINK_CREATE, {link_create={prog_fd=4, target_fd=11, attach_type=BPF_XDP, flags=0}, ...}, 64) = 5 [ 76.395100][ T5100] Oops: stack segment: 0000 [#1] PREEMPT SMP KASAN PTI [ 76.395136][ T5100] CPU: 1 UID: 0 PID: 5100 Comm: syz-executor326 Not tainted 6.10.0-rc6-next-20240703-syzkaller #0 [ 76.395153][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 76.395166][ T5100] RIP: 0010:bpf_xdp_redirect+0x59/0x1a0 [ 76.395221][ T5100] Code: 81 c3 00 18 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 b5 18 90 f8 48 8b 1b 4c 8d 63 38 4c 89 e5 48 c1 ed 03 <42> 0f b6 44 2d 00 84 c0 0f 85 d0 00 00 00 45 8b 34 24 44 89 f6 83 [ 76.395234][ T5100] RSP: 0018:ffffc900033bf6f8 EFLAGS: 00010202 [ 76.395248][ T5100] RAX: 1ffff11004549e40 RBX: 0000000000000000 RCX: ffff888022a4da00 [ 76.395260][ T5100] RDX: 0000000000000000 RSI: 0000000002000000 RDI: ffffc900033bf900 [ 76.395270][ T5100] RBP: 0000000000000007 R08: ffffffff895fff80 R09: 1ffff110172a8938 [ 76.395281][ T5100] R10: dffffc0000000000 R11: ffffed10172a8939 R12: 0000000000000038 [ 76.395292][ T5100] R13: dffffc0000000000 R14: 1ffff92000677f21 R15: 0000000002000000 [ 76.395303][ T5100] FS: 000055557e4d4380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 76.395317][ T5100] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.395327][ T5100] CR2: 000000002000f000 CR3: 000000007abc8000 CR4: 00000000003506f0 [ 76.395340][ T5100] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.395349][ T5100] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.395361][ T5100] Call Trace: [ 76.395366][ T5100] [ 76.395373][ T5100] ? __die_body+0x88/0xe0 [ 76.395398][ T5100] ? die+0xcf/0x110 [ 76.395420][ T5100] ? do_trap+0x15a/0x3a0 [ 76.395442][ T5100] ? do_error_trap+0x1dc/0x2c0 [ 76.395464][ T5100] ? __pfx_do_error_trap+0x10/0x10 [ 76.395485][ T5100] ? rcu_is_watching+0x15/0xb0 [ 76.395508][ T5100] ? exc_stack_segment+0x38/0x50 [ 76.395525][ T5100] ? asm_exc_stack_segment+0x26/0x30 [ 76.395545][ T5100] ? bpf_prog_run_generic_xdp+0x5f0/0x14c0 [ 76.395567][ T5100] ? bpf_xdp_redirect+0x59/0x1a0 [ 76.395589][ T5100] ? bpf_xdp_redirect+0x25/0x1a0 [ 76.395612][ T5100] bpf_prog_56e821181540367a+0x1d/0x1f [ 76.395628][ T5100] bpf_prog_run_generic_xdp+0x679/0x14c0 [ 76.395661][ T5100] do_xdp_generic+0x673/0xb90 [ 76.395684][ T5100] ? __pfx_do_xdp_generic+0x10/0x10 [ 76.395702][ T5100] ? tun_get_user+0x26c8/0x4560 [ 76.395728][ T5100] ? tun_get_user+0x26c8/0x4560 [ 76.395742][ T5100] tun_get_user+0x2805/0x4560 [ 76.395766][ T5100] ? __pfx_tun_get_user+0x10/0x10 [ 76.395783][ T5100] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 76.395799][ T5100] ? tun_get+0x1e/0x2f0 [ 76.395820][ T5100] ? tun_get+0x1e/0x2f0 [ 76.395833][ T5100] ? tun_get+0x27d/0x2f0 [ 76.395848][ T5100] tun_chr_write_iter+0x113/0x1f0 [ 76.395864][ T5100] vfs_write+0xa72/0xc90 [ 76.395880][ T5100] ? __pfx_tun_chr_write_iter+0x10/0x10 [ 76.395896][ T5100] ? __pfx_vfs_write+0x10/0x10 [ 76.395914][ T5100] ? lockdep_hardirqs_on+0x99/0x150 [ 76.395940][ T5100] ksys_write+0x1a0/0x2c0 [ 76.395956][ T5100] ? __pfx_ksys_write+0x10/0x10 [ 76.395971][ T5100] ? do_syscall_64+0x100/0x230 [ 76.395988][ T5100] do_syscall_64+0xf3/0x230 [ 76.396002][ T5100] ? clear_bhb_loop+0x35/0x90 [ 76.396021][ T5100] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.396039][ T5100] RIP: 0033:0x7f806d71bfd0 [ 76.396051][ T5100] Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d d1 e0 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ 76.396062][ T5100] RSP: 002b:00007fff9b41b6b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 76.396077][ T5100] RAX: ffffffffffffffda RBX: 00007fff9b41b750 RCX: 00007f806d71bfd0 [ 76.396088][ T5100] RDX: 000000000000fdef RSI: 0000000020000100 RDI: 00000000000000c8 [ 76.396098][ T5100] RBP: 00007fff9b41b700 R08: 0000000000000000 R09: 0000000000000000 [ 76.396114][ T5100] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 76.396123][ T5100] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 76.396139][ T5100] [ 76.396144][ T5100] Modules linked in: [ 76.396154][ T5100] ---[ end trace 0000000000000000 ]--- [ 76.790144][ T5100] RIP: 0010:bpf_xdp_redirect+0x59/0x1a0 [ 76.795720][ T5100] Code: 81 c3 00 18 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 b5 18 90 f8 48 8b 1b 4c 8d 63 38 4c 89 e5 48 c1 ed 03 <42> 0f b6 44 2d 00 84 c0 0f 85 d0 00 00 00 45 8b 34 24 44 89 f6 83 [ 76.815360][ T5100] RSP: 0018:ffffc900033bf6f8 EFLAGS: 00010202 [ 76.821456][ T5100] RAX: 1ffff11004549e40 RBX: 0000000000000000 RCX: ffff888022a4da00 [ 76.829486][ T5100] RDX: 0000000000000000 RSI: 0000000002000000 RDI: ffffc900033bf900 [ 76.837506][ T5100] RBP: 0000000000000007 R08: ffffffff895fff80 R09: 1ffff110172a8938 [ 76.845510][ T5100] R10: dffffc0000000000 R11: ffffed10172a8939 R12: 0000000000000038 [ 76.853511][ T5100] R13: dffffc0000000000 R14: 1ffff92000677f21 R15: 0000000002000000 [ 76.861541][ T5100] FS: 000055557e4d4380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 76.870503][ T5100] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.877154][ T5100] CR2: 000000002000f000 CR3: 000000007abc8000 CR4: 00000000003506f0 [ 76.885163][ T5100] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.893191][ T5100] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.902889][ T5100] Kernel panic - not syncing: Fatal exception in interrupt [ 76.910226][ T5100] Kernel Offset: disabled [ 76.914551][ T5100] Rebooting in 86400 seconds..