./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2271452130 <...> Warning: Permanently added '10.128.0.145' (ED25519) to the list of known hosts. execve("./syz-executor2271452130", ["./syz-executor2271452130"], 0x7ffd1b4ae7c0 /* 10 vars */) = 0 brk(NULL) = 0x55556e2a2000 brk(0x55556e2a2d00) = 0x55556e2a2d00 arch_prctl(ARCH_SET_FS, 0x55556e2a2380) = 0 set_tid_address(0x55556e2a2650) = 5088 set_robust_list(0x55556e2a2660, 24) = 0 rseq(0x55556e2a2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2271452130", 4096) = 28 getrandom("\x3d\xa5\x65\x5a\xb3\x45\x79\x13", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556e2a2d00 brk(0x55556e2c3d00) = 0x55556e2c3d00 brk(0x55556e2c4000) = 0x55556e2c4000 mprotect(0x7fe6cfe8b000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached , child_tidptr=0x55556e2a2650) = 5089 [pid 5089] set_robust_list(0x55556e2a2660, 24) = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] setpgid(0, 0) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] write(3, "1000", 4) = 4 [pid 5089] close(3) = 0 executing program [pid 5089] write(1, "executing program\n", 18) = 18 [pid 5089] socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP) = 3 [pid 5089] setsockopt(3, SOL_SOCKET, SO_TXTIME, "\xff\xff\xff\xff\x00\x00\x00\x00", 8) = 0 [ 55.374825][ T5089] ------------[ cut here ]------------ [ 55.380336][ T5089] WARNING: CPU: 1 PID: 5089 at include/linux/skbuff.h:4226 __ip6_make_skb+0x14f8/0x2470 [ 55.390145][ T5089] Modules linked in: [ 55.394062][ T5089] CPU: 1 PID: 5089 Comm: syz-executor227 Not tainted 6.9.0-syzkaller-08561-g2c1713a8f1c9 #0 [ 55.404208][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 55.414330][ T5089] RIP: 0010:__ip6_make_skb+0x14f8/0x2470 [ 55.420052][ T5089] Code: c0 0f 85 94 0a 00 00 41 8b 5d 00 4d 85 f6 74 0d e8 dd 50 6e f7 83 e3 fc 44 09 e3 eb 79 e8 d0 50 6e f7 eb 6f e8 c9 50 6e f7 90 <0f> 0b 90 48 8b 5c 24 08 48 8d 7b 20 48 89 f8 48 c1 e8 03 42 80 3c [ 55.439723][ T5089] RSP: 0018:ffffc9000345f400 EFLAGS: 00010293 [ 55.445870][ T5089] RAX: ffffffff8a27e107 RBX: 00000000000000ff RCX: ffff888025a99e00 [ 55.453871][ T5089] RDX: 0000000000000000 RSI: ffffffff8f6e8f20 RDI: 00000000000000ff [ 55.461956][ T5089] RBP: ffffc9000345f610 R08: 0000000000000001 R09: ffffffff8a27e049 [ 55.469971][ T5089] R10: 0000000000000003 R11: ffff888025a99e00 R12: ffff88807ab76730 [ 55.478008][ T5089] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9000345f6a0 [ 55.486021][ T5089] FS: 000055556e2a2380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 55.495001][ T5089] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.501593][ T5089] CR2: 000000000045ad50 CR3: 000000007e9e2000 CR4: 00000000003506f0 [ 55.509606][ T5089] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.517748][ T5089] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.525765][ T5089] Call Trace: [ 55.529053][ T5089] [ 55.531979][ T5089] ? __warn+0x163/0x4e0 [ 55.536197][ T5089] ? __ip6_make_skb+0x14f8/0x2470 [ 55.541244][ T5089] ? report_bug+0x2b3/0x500 [ 55.545811][ T5089] ? __ip6_make_skb+0x14f8/0x2470 [ 55.550845][ T5089] ? handle_bug+0x3e/0x70 [ 55.555236][ T5089] ? exc_invalid_op+0x1a/0x50 [ 55.559924][ T5089] ? asm_exc_invalid_op+0x1a/0x20 [ 55.564993][ T5089] ? __ip6_make_skb+0x1439/0x2470 [ 55.570024][ T5089] ? __ip6_make_skb+0x14f7/0x2470 [ 55.575138][ T5089] ? __ip6_make_skb+0x14f8/0x2470 [ 55.580202][ T5089] ? __pfx___ip6_make_skb+0x10/0x10 [ 55.585456][ T5089] ? __pfx___ip6_append_data+0x10/0x10 [ 55.590918][ T5089] ? ip6_setup_cork+0x9fd/0xfb0 [ 55.595955][ T5089] ip6_make_skb+0x48b/0x530 [ 55.600494][ T5089] ? __pfx_ip_generic_getfrag+0x10/0x10 [ 55.606082][ T5089] ? __pfx_ip6_make_skb+0x10/0x10 [ 55.611115][ T5089] ? __pfx_lock_release+0x10/0x10 [ 55.616196][ T5089] ? ip6_sk_dst_lookup_flow+0x87c/0xa30 [ 55.621761][ T5089] udpv6_sendmsg+0x237f/0x3270 [ 55.626568][ T5089] ? release_sock+0x30/0x1f0 [ 55.631198][ T5089] ? __pfx_ip_generic_getfrag+0x10/0x10 [ 55.636819][ T5089] ? __pfx_udpv6_sendmsg+0x10/0x10 [ 55.641951][ T5089] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 55.648351][ T5089] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 55.654077][ T5089] ? inet_send_prepare+0x1b7/0x260 [ 55.659250][ T5089] ? do_raw_spin_unlock+0x13c/0x8b0 [ 55.665016][ T5089] ? inet_send_prepare+0x1b7/0x260 [ 55.670140][ T5089] __sock_sendmsg+0xef/0x270 [ 55.674812][ T5089] ____sys_sendmsg+0x525/0x7d0 [ 55.679591][ T5089] ? __pfx_____sys_sendmsg+0x10/0x10 [ 55.685022][ T5089] ? do_raw_spin_lock+0x14f/0x370 [ 55.690103][ T5089] __sys_sendmsg+0x2b0/0x3a0 [ 55.694791][ T5089] ? __pfx___sys_sendmsg+0x10/0x10 [ 55.699925][ T5089] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 55.706333][ T5089] ? _raw_spin_unlock_irq+0x2e/0x50 [ 55.711554][ T5089] ? ptrace_notify+0x279/0x380 [ 55.716415][ T5089] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 55.722765][ T5089] ? do_syscall_64+0x102/0x240 [ 55.727604][ T5089] do_syscall_64+0xf5/0x240 [ 55.732120][ T5089] ? clear_bhb_loop+0x35/0x90 [ 55.736889][ T5089] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 55.742803][ T5089] RIP: 0033:0x7fe6cfe18ab9 [ 55.747458][ T5089] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 [ 55.767181][ T5089] RSP: 002b:00007ffe2f15e328 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.775683][ T5089] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe6cfe18ab9 [ 55.783667][ T5089] RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000003 [ 55.791705][ T5089] RBP: 00007fe6cfe8b5f0 R08: 0000000000000006 R09: 0000000000000006 [ 55.799715][ T5089] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001 [ 55.807772][ T5089] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 55.815787][ T5089] [ 55.818812][ T5089] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 55.826112][ T5089] CPU: 1 PID: 5089 Comm: syz-executor227 Not tainted 6.9.0-syzkaller-08561-g2c1713a8f1c9 #0 [ 55.836247][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 55.846291][ T5089] Call Trace: [ 55.849557][ T5089] [ 55.852472][ T5089] dump_stack_lvl+0x241/0x360 [ 55.857152][ T5089] ? __pfx_dump_stack_lvl+0x10/0x10 [ 55.862381][ T5089] ? __pfx__printk+0x10/0x10 [ 55.866971][ T5089] ? vscnprintf+0x5d/0x90 [ 55.871295][ T5089] panic+0x349/0x860 [ 55.875193][ T5089] ? __warn+0x172/0x4e0 [ 55.879349][ T5089] ? __pfx_panic+0x10/0x10 [ 55.883777][ T5089] __warn+0x346/0x4e0 [ 55.887759][ T5089] ? __ip6_make_skb+0x14f8/0x2470 [ 55.892780][ T5089] report_bug+0x2b3/0x500 [ 55.897106][ T5089] ? __ip6_make_skb+0x14f8/0x2470 [ 55.902123][ T5089] handle_bug+0x3e/0x70 [ 55.906274][ T5089] exc_invalid_op+0x1a/0x50 [ 55.910795][ T5089] asm_exc_invalid_op+0x1a/0x20 [ 55.915668][ T5089] RIP: 0010:__ip6_make_skb+0x14f8/0x2470 [ 55.921305][ T5089] Code: c0 0f 85 94 0a 00 00 41 8b 5d 00 4d 85 f6 74 0d e8 dd 50 6e f7 83 e3 fc 44 09 e3 eb 79 e8 d0 50 6e f7 eb 6f e8 c9 50 6e f7 90 <0f> 0b 90 48 8b 5c 24 08 48 8d 7b 20 48 89 f8 48 c1 e8 03 42 80 3c [ 55.940905][ T5089] RSP: 0018:ffffc9000345f400 EFLAGS: 00010293 [ 55.946971][ T5089] RAX: ffffffff8a27e107 RBX: 00000000000000ff RCX: ffff888025a99e00 [ 55.954940][ T5089] RDX: 0000000000000000 RSI: ffffffff8f6e8f20 RDI: 00000000000000ff [ 55.962898][ T5089] RBP: ffffc9000345f610 R08: 0000000000000001 R09: ffffffff8a27e049 [ 55.970861][ T5089] R10: 0000000000000003 R11: ffff888025a99e00 R12: ffff88807ab76730 [ 55.978829][ T5089] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9000345f6a0 [ 55.986798][ T5089] ? __ip6_make_skb+0x1439/0x2470 [ 55.991817][ T5089] ? __ip6_make_skb+0x14f7/0x2470 [ 55.996859][ T5089] ? __pfx___ip6_make_skb+0x10/0x10 [ 56.002075][ T5089] ? __pfx___ip6_append_data+0x10/0x10 [ 56.007706][ T5089] ? ip6_setup_cork+0x9fd/0xfb0 [ 56.012567][ T5089] ip6_make_skb+0x48b/0x530 [ 56.017079][ T5089] ? __pfx_ip_generic_getfrag+0x10/0x10 [ 56.022635][ T5089] ? __pfx_ip6_make_skb+0x10/0x10 [ 56.027660][ T5089] ? __pfx_lock_release+0x10/0x10 [ 56.032679][ T5089] ? ip6_sk_dst_lookup_flow+0x87c/0xa30 [ 56.038230][ T5089] udpv6_sendmsg+0x237f/0x3270 [ 56.042994][ T5089] ? release_sock+0x30/0x1f0 [ 56.047583][ T5089] ? __pfx_ip_generic_getfrag+0x10/0x10 [ 56.053124][ T5089] ? __pfx_udpv6_sendmsg+0x10/0x10 [ 56.058233][ T5089] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 56.064562][ T5089] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 56.070282][ T5089] ? inet_send_prepare+0x1b7/0x260 [ 56.075399][ T5089] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.080598][ T5089] ? inet_send_prepare+0x1b7/0x260 [ 56.085705][ T5089] __sock_sendmsg+0xef/0x270 [ 56.090298][ T5089] ____sys_sendmsg+0x525/0x7d0 [ 56.095061][ T5089] ? __pfx_____sys_sendmsg+0x10/0x10 [ 56.100344][ T5089] ? do_raw_spin_lock+0x14f/0x370 [ 56.105370][ T5089] __sys_sendmsg+0x2b0/0x3a0 [ 56.109956][ T5089] ? __pfx___sys_sendmsg+0x10/0x10 [ 56.115068][ T5089] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 56.121477][ T5089] ? _raw_spin_unlock_irq+0x2e/0x50 [ 56.126670][ T5089] ? ptrace_notify+0x279/0x380 [ 56.131439][ T5089] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 56.137758][ T5089] ? do_syscall_64+0x102/0x240 [ 56.142520][ T5089] do_syscall_64+0xf5/0x240 [ 56.147018][ T5089] ? clear_bhb_loop+0x35/0x90 [ 56.151693][ T5089] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.157579][ T5089] RIP: 0033:0x7fe6cfe18ab9 [ 56.161995][ T5089] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 [ 56.181592][ T5089] RSP: 002b:00007ffe2f15e328 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 56.190005][ T5089] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe6cfe18ab9 [ 56.197967][ T5089] RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000003 [ 56.205928][ T5089] RBP: 00007fe6cfe8b5f0 R08: 0000000000000006 R09: 0000000000000006 [ 56.213886][ T5089] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001 [ 56.221847][ T5089] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 56.229823][ T5089] [ 56.233055][ T5089] Kernel Offset: disabled [ 56.237416][ T5089] Rebooting in 86400 seconds..