./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3144499865 <...> Warning: Permanently added '10.128.1.38' (ECDSA) to the list of known hosts. execve("./syz-executor3144499865", ["./syz-executor3144499865"], 0x7ffef895e330 /* 10 vars */) = 0 brk(NULL) = 0x555556421000 brk(0x555556421c40) = 0x555556421c40 arch_prctl(ARCH_SET_FS, 0x555556421300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3144499865", 4096) = 28 brk(0x555556442c40) = 0x555556442c40 brk(0x555556443000) = 0x555556443000 mprotect(0x7fdb0549d000, 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 5080 attached , child_tidptr=0x5555564215d0) = 5080 [pid 5080] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setsid() = 1 [pid 5080] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5080] unshare(CLONE_NEWNS) = 0 [pid 5080] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5080] unshare(CLONE_NEWIPC) = 0 [pid 5080] unshare(CLONE_NEWCGROUP) = 0 [pid 5080] unshare(CLONE_NEWUTS) = 0 [pid 5080] unshare(CLONE_SYSVSEM) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "16777216", 8) = 8 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "536870912", 9) = 9 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "8192", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5080] close(3) = 0 [pid 5080] getpid() = 1 [pid 5080] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<frame_sz = 131072 [ 57.342672][ T5080] WARNING: CPU: 1 PID: 5080 at net/core/filter.c:4094 bpf_xdp_adjust_tail+0x461/0x9a0 [ 57.352311][ T5080] Modules linked in: [ 57.356196][ T5080] CPU: 1 PID: 5080 Comm: syz-executor314 Not tainted 6.2.0-syzkaller-12886-g37d9df224d1e #0 [ 57.366309][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 57.376402][ T5080] RIP: 0010:bpf_xdp_adjust_tail+0x461/0x9a0 [ 57.382370][ T5080] Code: ff 89 de e8 61 19 64 f9 84 db 0f 85 59 fd ff ff e8 44 1d 64 f9 89 ee 48 c7 c7 20 a3 5d 8b c6 05 95 00 42 06 01 e8 7f 92 2b f9 <0f> 0b e9 38 fd ff ff e8 f3 98 b5 f9 e9 64 fc ff ff e8 e9 98 b5 f9 [ 57.402213][ T5080] RSP: 0018:ffffc90003a1f8f0 EFLAGS: 00010286 [ 57.408330][ T5080] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 57.416372][ T5080] RDX: ffff888026200000 RSI: ffffffff814c78e7 RDI: 0000000000000001 [ 57.424429][ T5080] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 57.432444][ T5080] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffea [ 57.440451][ T5080] R13: ffff8880768afeef R14: 0000000000000000 R15: ffffc90003a1faa8 [ 57.448468][ T5080] FS: 0000555556421300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 57.457484][ T5080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.464121][ T5080] CR2: 0000000020010000 CR3: 0000000026624000 CR4: 00000000003506e0 [ 57.472145][ T5080] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.480124][ T5080] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.488195][ T5080] Call Trace: [ 57.491483][ T5080] [ 57.494463][ T5080] ? skb_free_head+0x108/0x1a0 [ 57.499246][ T5080] ? skb_headers_offset_update+0x129/0x250 [ 57.505131][ T5080] bpf_prog_4add87e5301a4105+0x1a/0x1c [ 57.510604][ T5080] bpf_prog_run_generic_xdp+0x578/0x1210 [ 57.516329][ T5080] netif_receive_generic_xdp+0x2e8/0x940 [ 57.522039][ T5080] do_xdp_generic+0x9a/0x1b0 [ 57.526807][ T5080] ? __netif_receive_skb_list_core+0x8f0/0x8f0 [ 57.533043][ T5080] tun_get_user+0x21f0/0x3950 [ 57.537738][ T5080] ? tun_build_skb+0x1230/0x1230 [ 57.542757][ T5080] ? lock_downgrade+0x690/0x690 [ 57.547643][ T5080] tun_chr_write_iter+0xdf/0x200 [ 57.552631][ T5080] vfs_write+0x9ed/0xe10 [ 57.556896][ T5080] ? kernel_write+0x670/0x670 [ 57.561577][ T5080] ? find_held_lock+0x2d/0x110 [ 57.566409][ T5080] ? __fget_light+0x20a/0x270 [ 57.571117][ T5080] ksys_write+0x12b/0x250 [ 57.575496][ T5080] ? __ia32_sys_read+0xb0/0xb0 [ 57.580277][ T5080] ? lockdep_hardirqs_on+0x7d/0x100 [ 57.585531][ T5080] ? _raw_spin_unlock_irq+0x2e/0x50 [ 57.590746][ T5080] ? ptrace_notify+0xfe/0x140 [ 57.595478][ T5080] do_syscall_64+0x39/0xb0 [ 57.599918][ T5080] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.605862][ T5080] RIP: 0033:0x7fdb053eaa63 [ 57.610292][ T5080] Code: 5d 41 5c 41 5d 41 5e e9 9b fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 [ 57.629945][ T5080] RSP: 002b:00007ffe88949ca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 57.638432][ T5080] RAX: ffffffffffffffda RBX: 00007ffe88949cd0 RCX: 00007fdb053eaa63 [ 57.646467][ T5080] RDX: 000000000000fdef RSI: 0000000020000300 RDI: 00000000000000c8 [ 57.654504][ T5080] RBP: 0000000000000003 R08: bb1414ac88949cd7 R09: bb1414ac88949cd7 [ 57.662539][ T5080] R10: bb1414ac88949cd7 R11: 0000000000000246 R12: 0000000000000000 [ 57.670532][ T5080] R13: 00007ffe88949cc0 R14: 00007ffe88949cb8 R15: 00007ffe88949cb4 [ 57.678577][ T5080] [ 57.681608][ T5080] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 57.688875][ T5080] CPU: 1 PID: 5080 Comm: syz-executor314 Not tainted 6.2.0-syzkaller-12886-g37d9df224d1e #0 [ 57.698927][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 57.708992][ T5080] Call Trace: [ 57.712260][ T5080] [ 57.715180][ T5080] dump_stack_lvl+0xd9/0x150 [ 57.719769][ T5080] panic+0x61b/0x6c0 [ 57.723662][ T5080] ? panic_smp_self_stop+0x90/0x90 [ 57.728768][ T5080] ? show_trace_log_lvl+0x285/0x390 [ 57.733968][ T5080] ? bpf_xdp_adjust_tail+0x461/0x9a0 [ 57.739248][ T5080] check_panic_on_warn+0xb1/0xc0 [ 57.744181][ T5080] __warn+0xf2/0x4f0 [ 57.748090][ T5080] ? bpf_xdp_adjust_tail+0x461/0x9a0 [ 57.753365][ T5080] report_bug+0x2da/0x500 [ 57.757696][ T5080] handle_bug+0x3c/0x70 [ 57.761843][ T5080] exc_invalid_op+0x18/0x50 [ 57.766338][ T5080] asm_exc_invalid_op+0x1a/0x20 [ 57.771182][ T5080] RIP: 0010:bpf_xdp_adjust_tail+0x461/0x9a0 [ 57.777090][ T5080] Code: ff 89 de e8 61 19 64 f9 84 db 0f 85 59 fd ff ff e8 44 1d 64 f9 89 ee 48 c7 c7 20 a3 5d 8b c6 05 95 00 42 06 01 e8 7f 92 2b f9 <0f> 0b e9 38 fd ff ff e8 f3 98 b5 f9 e9 64 fc ff ff e8 e9 98 b5 f9 [ 57.796713][ T5080] RSP: 0018:ffffc90003a1f8f0 EFLAGS: 00010286 [ 57.802788][ T5080] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 57.810757][ T5080] RDX: ffff888026200000 RSI: ffffffff814c78e7 RDI: 0000000000000001 [ 57.818746][ T5080] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 57.826715][ T5080] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffea [ 57.834685][ T5080] R13: ffff8880768afeef R14: 0000000000000000 R15: ffffc90003a1faa8 [ 57.842670][ T5080] ? __warn_printk+0x187/0x310 [ 57.847453][ T5080] ? skb_free_head+0x108/0x1a0 [ 57.852250][ T5080] ? skb_headers_offset_update+0x129/0x250 [ 57.858084][ T5080] bpf_prog_4add87e5301a4105+0x1a/0x1c [ 57.863549][ T5080] bpf_prog_run_generic_xdp+0x578/0x1210 [ 57.869233][ T5080] netif_receive_generic_xdp+0x2e8/0x940 [ 57.874926][ T5080] do_xdp_generic+0x9a/0x1b0 [ 57.879541][ T5080] ? __netif_receive_skb_list_core+0x8f0/0x8f0 [ 57.885727][ T5080] tun_get_user+0x21f0/0x3950 [ 57.890427][ T5080] ? tun_build_skb+0x1230/0x1230 [ 57.895372][ T5080] ? lock_downgrade+0x690/0x690 [ 57.900254][ T5080] tun_chr_write_iter+0xdf/0x200 [ 57.905197][ T5080] vfs_write+0x9ed/0xe10 [ 57.909447][ T5080] ? kernel_write+0x670/0x670 [ 57.914130][ T5080] ? find_held_lock+0x2d/0x110 [ 57.918905][ T5080] ? __fget_light+0x20a/0x270 [ 57.923587][ T5080] ksys_write+0x12b/0x250 [ 57.927919][ T5080] ? __ia32_sys_read+0xb0/0xb0 [ 57.932684][ T5080] ? lockdep_hardirqs_on+0x7d/0x100 [ 57.937893][ T5080] ? _raw_spin_unlock_irq+0x2e/0x50 [ 57.943090][ T5080] ? ptrace_notify+0xfe/0x140 [ 57.947773][ T5080] do_syscall_64+0x39/0xb0 [ 57.952194][ T5080] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.958099][ T5080] RIP: 0033:0x7fdb053eaa63 [ 57.962523][ T5080] Code: 5d 41 5c 41 5d 41 5e e9 9b fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 [ 57.982138][ T5080] RSP: 002b:00007ffe88949ca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 57.990559][ T5080] RAX: ffffffffffffffda RBX: 00007ffe88949cd0 RCX: 00007fdb053eaa63 [ 57.998530][ T5080] RDX: 000000000000fdef RSI: 0000000020000300 RDI: 00000000000000c8 [ 58.006505][ T5080] RBP: 0000000000000003 R08: bb1414ac88949cd7 R09: bb1414ac88949cd7 [ 58.014504][ T5080] R10: bb1414ac88949cd7 R11: 0000000000000246 R12: 0000000000000000 [ 58.022476][ T5080] R13: 00007ffe88949cc0 R14: 00007ffe88949cb8 R15: 00007ffe88949cb4 [ 58.030556][ T5080] [ 58.033723][ T5080] Kernel Offset: disabled [ 58.038098][ T5080] Rebooting in 86400 seconds..