./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3948757103 <...> Warning: Permanently added '10.128.1.56' (ED25519) to the list of known hosts. execve("./syz-executor3948757103", ["./syz-executor3948757103"], 0x7ffed6583f30 /* 10 vars */) = 0 brk(NULL) = 0x55555703e000 brk(0x55555703ed00) = 0x55555703ed00 arch_prctl(ARCH_SET_FS, 0x55555703e380) = 0 set_tid_address(0x55555703e650) = 5093 set_robust_list(0x55555703e660, 24) = 0 rseq(0x55555703eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3948757103", 4096) = 28 getrandom("\x21\x5e\x71\x71\x45\x45\x6b\xd4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555703ed00 brk(0x55555705fd00) = 0x55555705fd00 brk(0x555557060000) = 0x555557060000 mprotect(0x7f51a7b01000, 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=0x20000000, 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 [ 57.977298][ T5093] ------------[ cut here ]------------ [ 57.982964][ T5093] WARNING: CPU: 1 PID: 5093 at include/linux/skbuff.h:2738 skb_ensure_writable+0x2ef/0x440 [ 57.993028][ T5093] Modules linked in: [ 57.996913][ T5093] CPU: 1 PID: 5093 Comm: syz-executor394 Not tainted 6.9.0-syzkaller-05151-g1b294a1f3561 #0 [ 58.007017][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 58.017119][ T5093] RIP: 0010:skb_ensure_writable+0x2ef/0x440 [ 58.023071][ T5093] Code: e8 d6 de 45 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 17 03 fe ff e8 b2 de 45 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 5e e0 45 f8 45 39 e6 [ 58.042727][ T5093] RSP: 0018:ffffc9000366f8f0 EFLAGS: 00010293 [ 58.048842][ T5093] RAX: ffffffff89507e7e RBX: ffff88807300c3c0 RCX: ffff888029f19e00 [ 58.056808][ T5093] RDX: 0000000000000000 RSI: 00000000fffffff7 RDI: 0000000000000000 [ 58.064841][ T5093] RBP: 00000000fffffff7 R08: ffffffff89507bb7 R09: 1ffffffff1f593a5 [ 58.072855][ T5093] R10: dffffc0000000000 R11: ffffffffa0001fa4 R12: 00000000fffffff7 [ 58.080868][ T5093] R13: ffff88807300c3c0 R14: ffffc90000aee030 R15: dffffc0000000000 [ 58.088883][ T5093] FS: 000055555703e380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 58.097852][ T5093] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.104447][ T5093] CR2: 0000000020002c80 CR3: 00000000752ac000 CR4: 00000000003506f0 [ 58.112471][ T5093] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.120510][ T5093] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.128527][ T5093] Call Trace: [ 58.131815][ T5093] [ 58.134736][ T5093] ? __warn+0x163/0x4e0 [ 58.138935][ T5093] ? skb_ensure_writable+0x2ef/0x440 [ 58.144240][ T5093] ? report_bug+0x2b3/0x500 [ 58.148811][ T5093] ? skb_ensure_writable+0x2ef/0x440 [ 58.154117][ T5093] ? handle_bug+0x3e/0x70 [ 58.158491][ T5093] ? exc_invalid_op+0x1a/0x50 [ 58.163179][ T5093] ? asm_exc_invalid_op+0x1a/0x20 [ 58.168247][ T5093] ? 0xffffffffa0001fa4 [ 58.172412][ T5093] ? skb_ensure_writable+0x27/0x440 [ 58.177677][ T5093] ? skb_ensure_writable+0x2ee/0x440 [ 58.182983][ T5093] ? skb_ensure_writable+0x2ef/0x440 [ 58.188348][ T5093] ? __pfx___cant_migrate+0x10/0x10 [ 58.193568][ T5093] ? bpf_test_run+0x31e/0x910 [ 58.198299][ T5093] bpf_skb_pull_data+0x7c/0x230 [ 58.203165][ T5093] ? bpf_test_run+0x31e/0x910 [ 58.207885][ T5093] bpf_prog_c054a5fa89446ea8+0x24/0x47 [ 58.213353][ T5093] bpf_test_run+0x409/0x910 [ 58.217930][ T5093] ? __pfx_bpf_test_run+0x10/0x10 [ 58.223004][ T5093] ? eth_type_trans+0x3d1/0x7a0 [ 58.227914][ T5093] ? __pfx_eth_type_trans+0x10/0x10 [ 58.233131][ T5093] ? convert___skb_to_skb+0x41/0x620 [ 58.238466][ T5093] bpf_prog_test_run_skb+0xafa/0x13a0 [ 58.243867][ T5093] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 58.249726][ T5093] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 58.255545][ T5093] bpf_prog_test_run+0x33a/0x3b0 [ 58.260534][ T5093] __sys_bpf+0x48d/0x810 [ 58.264803][ T5093] ? __pfx___sys_bpf+0x10/0x10 [ 58.269641][ T5093] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 58.275985][ T5093] ? do_syscall_64+0x102/0x240 [ 58.280802][ T5093] __x64_sys_bpf+0x7c/0x90 [ 58.285238][ T5093] do_syscall_64+0xf5/0x240 [ 58.289788][ T5093] ? clear_bhb_loop+0x35/0x90 [ 58.294479][ T5093] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.300417][ T5093] RIP: 0033:0x7f51a7a8e669 [ 58.304845][ T5093] 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 [ 58.324524][ T5093] RSP: 002b:00007ffef617f428 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 58.333019][ T5093] RAX: ffffffffffffffda RBX: 00007ffef617f5f8 RCX: 00007f51a7a8e669 [ 58.341036][ T5093] RDX: 0000000000000050 RSI: 00000000200002c0 RDI: 000000000000000a [ 58.349050][ T5093] RBP: 00007f51a7b01610 R08: 0000000000000000 R09: 00007ffef617f5f8 [ 58.357013][ T5093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 58.365021][ T5093] R13: 00007ffef617f5e8 R14: 0000000000000001 R15: 0000000000000001 [ 58.373068][ T5093] [ 58.376079][ T5093] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 58.383352][ T5093] CPU: 1 PID: 5093 Comm: syz-executor394 Not tainted 6.9.0-syzkaller-05151-g1b294a1f3561 #0 [ 58.393397][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 58.403445][ T5093] Call Trace: [ 58.406714][ T5093] [ 58.409635][ T5093] dump_stack_lvl+0x241/0x360 [ 58.414310][ T5093] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.419497][ T5093] ? __pfx__printk+0x10/0x10 [ 58.424071][ T5093] ? _printk+0xd5/0x120 [ 58.428239][ T5093] ? vscnprintf+0x5d/0x90 [ 58.432567][ T5093] panic+0x349/0x860 [ 58.436453][ T5093] ? __warn+0x172/0x4e0 [ 58.440595][ T5093] ? __pfx_panic+0x10/0x10 [ 58.445017][ T5093] ? show_trace_log_lvl+0x4e6/0x520 [ 58.450214][ T5093] __warn+0x346/0x4e0 [ 58.454183][ T5093] ? skb_ensure_writable+0x2ef/0x440 [ 58.459469][ T5093] report_bug+0x2b3/0x500 [ 58.463786][ T5093] ? skb_ensure_writable+0x2ef/0x440 [ 58.469063][ T5093] handle_bug+0x3e/0x70 [ 58.473207][ T5093] exc_invalid_op+0x1a/0x50 [ 58.477698][ T5093] asm_exc_invalid_op+0x1a/0x20 [ 58.482537][ T5093] RIP: 0010:skb_ensure_writable+0x2ef/0x440 [ 58.488435][ T5093] Code: e8 d6 de 45 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 17 03 fe ff e8 b2 de 45 f8 90 <0f> 0b 90 e9 3e fd ff ff 44 89 f7 44 89 e6 e8 5e e0 45 f8 45 39 e6 [ 58.508035][ T5093] RSP: 0018:ffffc9000366f8f0 EFLAGS: 00010293 [ 58.514092][ T5093] RAX: ffffffff89507e7e RBX: ffff88807300c3c0 RCX: ffff888029f19e00 [ 58.522069][ T5093] RDX: 0000000000000000 RSI: 00000000fffffff7 RDI: 0000000000000000 [ 58.530027][ T5093] RBP: 00000000fffffff7 R08: ffffffff89507bb7 R09: 1ffffffff1f593a5 [ 58.537987][ T5093] R10: dffffc0000000000 R11: ffffffffa0001fa4 R12: 00000000fffffff7 [ 58.545947][ T5093] R13: ffff88807300c3c0 R14: ffffc90000aee030 R15: dffffc0000000000 [ 58.553931][ T5093] ? 0xffffffffa0001fa4 [ 58.558075][ T5093] ? skb_ensure_writable+0x27/0x440 [ 58.563267][ T5093] ? skb_ensure_writable+0x2ee/0x440 [ 58.568547][ T5093] ? __pfx___cant_migrate+0x10/0x10 [ 58.573736][ T5093] ? bpf_test_run+0x31e/0x910 [ 58.578402][ T5093] bpf_skb_pull_data+0x7c/0x230 [ 58.583239][ T5093] ? bpf_test_run+0x31e/0x910 [ 58.587906][ T5093] bpf_prog_c054a5fa89446ea8+0x24/0x47 [ 58.593389][ T5093] bpf_test_run+0x409/0x910 [ 58.597888][ T5093] ? __pfx_bpf_test_run+0x10/0x10 [ 58.602898][ T5093] ? eth_type_trans+0x3d1/0x7a0 [ 58.607742][ T5093] ? __pfx_eth_type_trans+0x10/0x10 [ 58.612952][ T5093] ? convert___skb_to_skb+0x41/0x620 [ 58.618225][ T5093] bpf_prog_test_run_skb+0xafa/0x13a0 [ 58.623595][ T5093] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 58.629409][ T5093] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 58.635203][ T5093] bpf_prog_test_run+0x33a/0x3b0 [ 58.640135][ T5093] __sys_bpf+0x48d/0x810 [ 58.644371][ T5093] ? __pfx___sys_bpf+0x10/0x10 [ 58.649131][ T5093] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 58.655446][ T5093] ? do_syscall_64+0x102/0x240 [ 58.660221][ T5093] __x64_sys_bpf+0x7c/0x90 [ 58.664632][ T5093] do_syscall_64+0xf5/0x240 [ 58.669140][ T5093] ? clear_bhb_loop+0x35/0x90 [ 58.673805][ T5093] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.679689][ T5093] RIP: 0033:0x7f51a7a8e669 [ 58.684109][ T5093] 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 [ 58.703716][ T5093] RSP: 002b:00007ffef617f428 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 58.712124][ T5093] RAX: ffffffffffffffda RBX: 00007ffef617f5f8 RCX: 00007f51a7a8e669 [ 58.720084][ T5093] RDX: 0000000000000050 RSI: 00000000200002c0 RDI: 000000000000000a [ 58.728042][ T5093] RBP: 00007f51a7b01610 R08: 0000000000000000 R09: 00007ffef617f5f8 [ 58.735997][ T5093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 58.743955][ T5093] R13: 00007ffef617f5e8 R14: 0000000000000001 R15: 0000000000000001 [ 58.751930][ T5093] [ 58.755042][ T5093] Kernel Offset: disabled [ 58.759388][ T5093] Rebooting in 86400 seconds..