./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3503396210 <...> Warning: Permanently added '10.128.1.166' (ED25519) to the list of known hosts. execve("./syz-executor3503396210", ["./syz-executor3503396210"], 0x7ffc5200a7a0 /* 10 vars */) = 0 brk(NULL) = 0x55555c23f000 brk(0x55555c23fd00) = 0x55555c23fd00 arch_prctl(ARCH_SET_FS, 0x55555c23f380) = 0 set_tid_address(0x55555c23f650) = 5087 set_robust_list(0x55555c23f660, 24) = 0 rseq(0x55555c23fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3503396210", 4096) = 28 getrandom("\x45\xf7\xc0\xa8\xdd\x14\xc6\x5c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555c23fd00 brk(0x55555c260d00) = 0x55555c260d00 brk(0x55555c261000) = 0x55555c261000 mprotect(0x7faf1402a000, 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=0x20000240, 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 [ 57.674742][ T5087] ------------[ cut here ]------------ [ 57.680377][ T5087] WARNING: CPU: 1 PID: 5087 at include/linux/skbuff.h:2738 skb_ensure_writable+0x2ef/0x440 [ 57.690489][ T5087] Modules linked in: [ 57.694424][ T5087] CPU: 1 PID: 5087 Comm: syz-executor350 Not tainted 6.9.0-syzkaller-05151-g1b294a1f3561 #0 [ 57.704537][ T5087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 57.714960][ T5087] RIP: 0010:skb_ensure_writable+0x2ef/0x440 [ 57.720871][ T5087] 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 [ 57.740527][ T5087] RSP: 0018:ffffc9000346f8f0 EFLAGS: 00010293 [ 57.746661][ T5087] RAX: ffffffff89507e7e RBX: ffff88807a886500 RCX: ffff888029693c00 [ 57.754678][ T5087] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 57.762661][ T5087] RBP: 0000000080000000 R08: ffffffff89507bb7 R09: 1ffffffff1f593a5 [ 57.770702][ T5087] R10: dffffc0000000000 R11: ffffffffa0001ae0 R12: 0000000080000000 [ 57.778740][ T5087] R13: ffff88807a886500 R14: ffffc90000ade030 R15: dffffc0000000000 [ 57.786780][ T5087] FS: 000055555c23f380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 57.795769][ T5087] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.802364][ T5087] CR2: 00000000391b2398 CR3: 000000001249a000 CR4: 00000000003506f0 [ 57.810566][ T5087] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.818600][ T5087] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.826617][ T5087] Call Trace: [ 57.829908][ T5087] <TASK> [ 57.832874][ T5087] ? __warn+0x163/0x4e0 [ 57.837113][ T5087] ? skb_ensure_writable+0x2ef/0x440 [ 57.842423][ T5087] ? report_bug+0x2b3/0x500 [ 57.846969][ T5087] ? skb_ensure_writable+0x2ef/0x440 [ 57.852276][ T5087] ? handle_bug+0x3e/0x70 [ 57.856659][ T5087] ? exc_invalid_op+0x1a/0x50 [ 57.861365][ T5087] ? asm_exc_invalid_op+0x1a/0x20 [ 57.866466][ T5087] ? 0xffffffffa0001ae0 [ 57.870658][ T5087] ? skb_ensure_writable+0x27/0x440 [ 57.875918][ T5087] ? skb_ensure_writable+0x2ee/0x440 [ 57.881250][ T5087] ? skb_ensure_writable+0x2ef/0x440 [ 57.886585][ T5087] ? __pfx___cant_migrate+0x10/0x10 [ 57.891831][ T5087] ? bpf_test_run+0x31e/0x910 [ 57.896556][ T5087] bpf_skb_pull_data+0x7c/0x230 [ 57.901419][ T5087] ? bpf_test_run+0x31e/0x910 [ 57.906166][ T5087] bpf_prog_ae7213afad14896d+0x24/0x47 [ 57.911638][ T5087] bpf_test_run+0x409/0x910 [ 57.916209][ T5087] ? __pfx_bpf_test_run+0x10/0x10 [ 57.921271][ T5087] ? eth_type_trans+0x3d1/0x7a0 [ 57.926209][ T5087] ? __pfx_eth_type_trans+0x10/0x10 [ 57.931425][ T5087] ? convert___skb_to_skb+0x41/0x620 [ 57.936784][ T5087] bpf_prog_test_run_skb+0xafa/0x13a0 [ 57.942189][ T5087] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 57.948049][ T5087] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 57.953869][ T5087] bpf_prog_test_run+0x33a/0x3b0 [ 57.958891][ T5087] __sys_bpf+0x48d/0x810 [ 57.963161][ T5087] ? __pfx___sys_bpf+0x10/0x10 [ 57.967992][ T5087] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 57.974376][ T5087] ? do_syscall_64+0x102/0x240 [ 57.979157][ T5087] __x64_sys_bpf+0x7c/0x90 [ 57.983565][ T5087] do_syscall_64+0xf5/0x240 [ 57.988105][ T5087] ? clear_bhb_loop+0x35/0x90 [ 57.992812][ T5087] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.998762][ T5087] RIP: 0033:0x7faf13fb74e9 [ 58.003194][ T5087] 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 [ 58.022856][ T5087] RSP: 002b:00007fff98b47798 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 58.031355][ T5087] RAX: ffffffffffffffda RBX: 00007fff98b47968 RCX: 00007faf13fb74e9 [ 58.039388][ T5087] RDX: 0000000000000048 RSI: 00000000200002c0 RDI: 000000000000000a [ 58.047429][ T5087] RBP: 00007faf1402a610 R08: 0000000000000000 R09: 00007fff98b47968 [ 58.055474][ T5087] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 58.063465][ T5087] R13: 00007fff98b47958 R14: 0000000000000001 R15: 0000000000000001 [ 58.071508][ T5087] </TASK> [ 58.074572][ T5087] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 58.081863][ T5087] CPU: 1 PID: 5087 Comm: syz-executor350 Not tainted 6.9.0-syzkaller-05151-g1b294a1f3561 #0 [ 58.091915][ T5087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 58.101959][ T5087] Call Trace: [ 58.105246][ T5087] <TASK> [ 58.108189][ T5087] dump_stack_lvl+0x241/0x360 [ 58.112868][ T5087] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.118069][ T5087] ? __pfx__printk+0x10/0x10 [ 58.122656][ T5087] ? _printk+0xd5/0x120 [ 58.126800][ T5087] ? vscnprintf+0x5d/0x90 [ 58.131117][ T5087] panic+0x349/0x860 [ 58.135004][ T5087] ? __warn+0x172/0x4e0 [ 58.139150][ T5087] ? __pfx_panic+0x10/0x10 [ 58.143549][ T5087] ? show_trace_log_lvl+0x4e6/0x520 [ 58.148748][ T5087] __warn+0x346/0x4e0 [ 58.152715][ T5087] ? skb_ensure_writable+0x2ef/0x440 [ 58.158009][ T5087] report_bug+0x2b3/0x500 [ 58.162343][ T5087] ? skb_ensure_writable+0x2ef/0x440 [ 58.167632][ T5087] handle_bug+0x3e/0x70 [ 58.171779][ T5087] exc_invalid_op+0x1a/0x50 [ 58.176270][ T5087] asm_exc_invalid_op+0x1a/0x20 [ 58.181106][ T5087] RIP: 0010:skb_ensure_writable+0x2ef/0x440 [ 58.186996][ T5087] 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 [ 58.206935][ T5087] RSP: 0018:ffffc9000346f8f0 EFLAGS: 00010293 [ 58.212991][ T5087] RAX: ffffffff89507e7e RBX: ffff88807a886500 RCX: ffff888029693c00 [ 58.220959][ T5087] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 58.228916][ T5087] RBP: 0000000080000000 R08: ffffffff89507bb7 R09: 1ffffffff1f593a5 [ 58.236889][ T5087] R10: dffffc0000000000 R11: ffffffffa0001ae0 R12: 0000000080000000 [ 58.244859][ T5087] R13: ffff88807a886500 R14: ffffc90000ade030 R15: dffffc0000000000 [ 58.252822][ T5087] ? 0xffffffffa0001ae0 [ 58.256964][ T5087] ? skb_ensure_writable+0x27/0x440 [ 58.262155][ T5087] ? skb_ensure_writable+0x2ee/0x440 [ 58.267430][ T5087] ? __pfx___cant_migrate+0x10/0x10 [ 58.272622][ T5087] ? bpf_test_run+0x31e/0x910 [ 58.277282][ T5087] bpf_skb_pull_data+0x7c/0x230 [ 58.282135][ T5087] ? bpf_test_run+0x31e/0x910 [ 58.286796][ T5087] bpf_prog_ae7213afad14896d+0x24/0x47 [ 58.292240][ T5087] bpf_test_run+0x409/0x910 [ 58.296738][ T5087] ? __pfx_bpf_test_run+0x10/0x10 [ 58.301744][ T5087] ? eth_type_trans+0x3d1/0x7a0 [ 58.306593][ T5087] ? __pfx_eth_type_trans+0x10/0x10 [ 58.311781][ T5087] ? convert___skb_to_skb+0x41/0x620 [ 58.317051][ T5087] bpf_prog_test_run_skb+0xafa/0x13a0 [ 58.322419][ T5087] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 58.328213][ T5087] ? __pfx_bpf_prog_test_run_skb+0x10/0x10 [ 58.334005][ T5087] bpf_prog_test_run+0x33a/0x3b0 [ 58.338929][ T5087] __sys_bpf+0x48d/0x810 [ 58.343161][ T5087] ? __pfx___sys_bpf+0x10/0x10 [ 58.347948][ T5087] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 58.354263][ T5087] ? do_syscall_64+0x102/0x240 [ 58.359017][ T5087] __x64_sys_bpf+0x7c/0x90 [ 58.363432][ T5087] do_syscall_64+0xf5/0x240 [ 58.368095][ T5087] ? clear_bhb_loop+0x35/0x90 [ 58.372762][ T5087] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.378638][ T5087] RIP: 0033:0x7faf13fb74e9 [ 58.383039][ T5087] 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 [ 58.402631][ T5087] RSP: 002b:00007fff98b47798 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 58.411031][ T5087] RAX: ffffffffffffffda RBX: 00007fff98b47968 RCX: 00007faf13fb74e9 [ 58.418990][ T5087] RDX: 0000000000000048 RSI: 00000000200002c0 RDI: 000000000000000a [ 58.426957][ T5087] RBP: 00007faf1402a610 R08: 0000000000000000 R09: 00007fff98b47968 [ 58.434913][ T5087] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 58.442868][ T5087] R13: 00007fff98b47958 R14: 0000000000000001 R15: 0000000000000001 [ 58.450844][ T5087] </TASK> [ 58.454174][ T5087] Kernel Offset: disabled [ 58.458513][ T5087] Rebooting in 86400 seconds..