./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3123678882 <...> Warning: Permanently added '10.128.0.245' (ED25519) to the list of known hosts. execve("./syz-executor3123678882", ["./syz-executor3123678882"], 0x7ffcc27c9ae0 /* 10 vars */) = 0 brk(NULL) = 0x555576aff000 brk(0x555576affd00) = 0x555576affd00 arch_prctl(ARCH_SET_FS, 0x555576aff380) = 0 set_tid_address(0x555576aff650) = 5083 set_robust_list(0x555576aff660, 24) = 0 rseq(0x555576affca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3123678882", 4096) = 28 getrandom("\x19\xe7\x8c\x98\x61\x76\x06\xa8", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555576affd00 brk(0x555576b20d00) = 0x555576b20d00 brk(0x555576b21000) = 0x555576b21000 mprotect(0x7f071ba1f000, 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 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_CLS, insn_cnt=12, insns=0x20000140, 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_CGROUP_INET_INGRESS, 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) = 3 [ 59.551668][ T5083] ------------[ cut here ]------------ [ 59.557318][ T5083] WARNING: CPU: 0 PID: 5083 at include/linux/skbuff.h:2749 skb_ensure_writable+0x2ef/0x440 [ 59.567362][ T5083] Modules linked in: [ 59.571262][ T5083] CPU: 0 PID: 5083 Comm: syz-executor312 Not tainted 6.9.0-rc5-syzkaller-01478-g7e2c7a3f732b #0 [ 59.581731][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 59.591841][ T5083] RIP: 0010:skb_ensure_writable+0x2ef/0x440 [ 59.597778][ T5083] Code: e8 46 c6 47 f8 4c 89 ef 31 f6 31 d2 b9 20 08 00 00 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 87 05 fe ff e8 22 c6 47 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 ce c7 47 f8 45 39 e6 [ 59.617439][ T5083] RSP: 0018:ffffc90002d9f8f0 EFLAGS: 00010293 [ 59.623503][ T5083] RAX: ffffffff894e562e RBX: ffff88802ca39780 RCX: ffff888022ccbc00 [ 59.631504][ T5083] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 59.639517][ T5083] RBP: 00000000ffffffff R08: ffffffff894e5367 R09: 1ffffffff1f526d5 [ 59.647527][ T5083] R10: dffffc0000000000 R11: ffffffffa00007dc R12: 00000000ffffffff [ 59.655541][ T5083] R13: ffff88802ca39780 R14: ffffc90000ace030 R15: dffffc0000000000 [ 59.663525][ T5083] FS: 0000555576aff380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 59.672494][ T5083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.679120][ T5083] CR2: 0000000020002c80 CR3: 000000002296e000 CR4: 00000000003506f0 [ 59.687162][ T5083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.695171][ T5083] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.703131][ T5083] Call Trace: [ 59.706442][ T5083] [ 59.709378][ T5083] ? __warn+0x163/0x4e0 [ 59.713528][ T5083] ? skb_ensure_writable+0x2ef/0x440 [ 59.718860][ T5083] ? report_bug+0x2b3/0x500 [ 59.723443][ T5083] ? skb_ensure_writable+0x2ef/0x440 [ 59.728775][ T5083] ? handle_bug+0x3e/0x70 [ 59.733119][ T5083] ? exc_invalid_op+0x1a/0x50 [ 59.737843][ T5083] ? asm_exc_invalid_op+0x1a/0x20 [ 59.742886][ T5083] ? 0xffffffffa00007dc [ 59.747080][ T5083] ? skb_ensure_writable+0x27/0x440 [ 59.752331][ T5083] ? skb_ensure_writable+0x2ee/0x440 [ 59.757662][ T5083] ? skb_ensure_writable+0x2ef/0x440 [ 59.762964][ T5083] ? __pfx___cant_migrate+0x10/0x10 [ 59.768203][ T5083] ? __x64_sys_bpf+0x7c/0x90 [ 59.772803][ T5083] ? bpf_test_run+0x31e/0x910 [ 59.777520][ T5083] bpf_skb_pull_data+0x7c/0x230 [ 59.782391][ T5083] ? bpf_test_run+0x31e/0x910 [ 59.787113][ T5083] bpf_prog_58dbbba81b71214e+0x24/0x47 [ 59.792581][ T5083] bpf_test_run+0x409/0x910 [ 59.797145][ T5083] ? __pfx_bpf_test_run+0x10/0x10 [ 59.802179][ T5083] ? eth_type_trans+0x3d1/0x7a0 [ 59.807223][ T5083] ? __pfx_eth_type_trans+0x10/0x10 [ 59.812455][ T5083] ? convert___skb_to_skb+0x41/0x620 [ 59.817802][ T5083] bpf_prog_test_run_skb+0xafa/0x13a0 [ 59.823203][ T5083] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 59.829099][ T5083] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 59.834979][ T5083] bpf_prog_test_run+0x33a/0x3b0 [ 59.839928][ T5083] __sys_bpf+0x48d/0x810 [ 59.844228][ T5083] ? __pfx___sys_bpf+0x10/0x10 [ 59.849028][ T5083] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 59.855420][ T5083] ? do_syscall_64+0x102/0x240 [ 59.860311][ T5083] __x64_sys_bpf+0x7c/0x90 [ 59.864796][ T5083] do_syscall_64+0xf5/0x240 [ 59.869318][ T5083] ? clear_bhb_loop+0x35/0x90 [ 59.874052][ T5083] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.879960][ T5083] RIP: 0033:0x7f071b9ac669 [ 59.884417][ T5083] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 [ 59.904693][ T5083] RSP: 002b:00007ffe931b04e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 59.913127][ T5083] RAX: ffffffffffffffda RBX: 00007ffe931b06b8 RCX: 00007f071b9ac669 [ 59.921261][ T5083] RDX: 0000000000000048 RSI: 00000000200002c0 RDI: 000000000000000a [ 59.929278][ T5083] RBP: 00007f071ba1f610 R08: 0000000000000000 R09: 00007ffe931b06b8 [ 59.937287][ T5083] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 59.945295][ T5083] R13: 00007ffe931b06a8 R14: 0000000000000001 R15: 0000000000000001 [ 59.953265][ T5083] [ 59.956320][ T5083] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 59.963618][ T5083] CPU: 0 PID: 5083 Comm: syz-executor312 Not tainted 6.9.0-rc5-syzkaller-01478-g7e2c7a3f732b #0 [ 59.974031][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 59.984081][ T5083] Call Trace: [ 59.987348][ T5083] [ 59.991142][ T5083] dump_stack_lvl+0x241/0x360 [ 59.995837][ T5083] ? __pfx_dump_stack_lvl+0x10/0x10 [ 60.001197][ T5083] ? __pfx__printk+0x10/0x10 [ 60.005769][ T5083] ? _printk+0xd5/0x120 [ 60.009910][ T5083] ? vscnprintf+0x5d/0x90 [ 60.014224][ T5083] panic+0x349/0x860 [ 60.018107][ T5083] ? __warn+0x172/0x4e0 [ 60.022251][ T5083] ? __pfx_panic+0x10/0x10 [ 60.026751][ T5083] ? show_trace_log_lvl+0x4e6/0x520 [ 60.032051][ T5083] __warn+0x346/0x4e0 [ 60.036031][ T5083] ? skb_ensure_writable+0x2ef/0x440 [ 60.041316][ T5083] report_bug+0x2b3/0x500 [ 60.045634][ T5083] ? skb_ensure_writable+0x2ef/0x440 [ 60.050906][ T5083] handle_bug+0x3e/0x70 [ 60.055051][ T5083] exc_invalid_op+0x1a/0x50 [ 60.059566][ T5083] asm_exc_invalid_op+0x1a/0x20 [ 60.064403][ T5083] RIP: 0010:skb_ensure_writable+0x2ef/0x440 [ 60.070287][ T5083] Code: e8 46 c6 47 f8 4c 89 ef 31 f6 31 d2 b9 20 08 00 00 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 87 05 fe ff e8 22 c6 47 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 ce c7 47 f8 45 39 e6 [ 60.089895][ T5083] RSP: 0018:ffffc90002d9f8f0 EFLAGS: 00010293 [ 60.095949][ T5083] RAX: ffffffff894e562e RBX: ffff88802ca39780 RCX: ffff888022ccbc00 [ 60.103946][ T5083] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 60.111916][ T5083] RBP: 00000000ffffffff R08: ffffffff894e5367 R09: 1ffffffff1f526d5 [ 60.119884][ T5083] R10: dffffc0000000000 R11: ffffffffa00007dc R12: 00000000ffffffff [ 60.127861][ T5083] R13: ffff88802ca39780 R14: ffffc90000ace030 R15: dffffc0000000000 [ 60.135839][ T5083] ? 0xffffffffa00007dc [ 60.139981][ T5083] ? skb_ensure_writable+0x27/0x440 [ 60.145169][ T5083] ? skb_ensure_writable+0x2ee/0x440 [ 60.150443][ T5083] ? __pfx___cant_migrate+0x10/0x10 [ 60.155626][ T5083] ? __x64_sys_bpf+0x7c/0x90 [ 60.160197][ T5083] ? bpf_test_run+0x31e/0x910 [ 60.164946][ T5083] bpf_skb_pull_data+0x7c/0x230 [ 60.169780][ T5083] ? bpf_test_run+0x31e/0x910 [ 60.174469][ T5083] bpf_prog_58dbbba81b71214e+0x24/0x47 [ 60.179906][ T5083] bpf_test_run+0x409/0x910 [ 60.184424][ T5083] ? __pfx_bpf_test_run+0x10/0x10 [ 60.189448][ T5083] ? eth_type_trans+0x3d1/0x7a0 [ 60.194299][ T5083] ? __pfx_eth_type_trans+0x10/0x10 [ 60.199483][ T5083] ? convert___skb_to_skb+0x41/0x620 [ 60.204757][ T5083] bpf_prog_test_run_skb+0xafa/0x13a0 [ 60.210129][ T5083] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 60.215926][ T5083] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 60.221721][ T5083] bpf_prog_test_run+0x33a/0x3b0 [ 60.227000][ T5083] __sys_bpf+0x48d/0x810 [ 60.231229][ T5083] ? __pfx___sys_bpf+0x10/0x10 [ 60.236003][ T5083] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 60.242314][ T5083] ? do_syscall_64+0x102/0x240 [ 60.247068][ T5083] __x64_sys_bpf+0x7c/0x90 [ 60.251468][ T5083] do_syscall_64+0xf5/0x240 [ 60.255960][ T5083] ? clear_bhb_loop+0x35/0x90 [ 60.260624][ T5083] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 60.266507][ T5083] RIP: 0033:0x7f071b9ac669 [ 60.270919][ T5083] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 [ 60.290982][ T5083] RSP: 002b:00007ffe931b04e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 60.299399][ T5083] RAX: ffffffffffffffda RBX: 00007ffe931b06b8 RCX: 00007f071b9ac669 [ 60.307371][ T5083] RDX: 0000000000000048 RSI: 00000000200002c0 RDI: 000000000000000a [ 60.315355][ T5083] RBP: 00007f071ba1f610 R08: 0000000000000000 R09: 00007ffe931b06b8 [ 60.324545][ T5083] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 60.332508][ T5083] R13: 00007ffe931b06a8 R14: 0000000000000001 R15: 0000000000000001 [ 60.340494][ T5083] [ 60.343788][ T5083] Kernel Offset: disabled [ 60.348145][ T5083] Rebooting in 86400 seconds..