./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor402177893 <...> Warning: Permanently added '10.128.0.34' (ED25519) to the list of known hosts. execve("./syz-executor402177893", ["./syz-executor402177893"], 0x7fffb8d4caa0 /* 10 vars */) = 0 brk(NULL) = 0x55556170f000 brk(0x55556170fd00) = 0x55556170fd00 arch_prctl(ARCH_SET_FS, 0x55556170f380) = 0 set_tid_address(0x55556170f650) = 5840 set_robust_list(0x55556170f660, 24) = 0 rseq(0x55556170fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor402177893", 4096) = 27 getrandom("\x58\x9a\x68\x87\xe9\x57\xb0\x15", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556170fd00 brk(0x555561730d00) = 0x555561730d00 brk(0x555561731000) = 0x555561731000 mprotect(0x7ff3da05e000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached , child_tidptr=0x55556170f650) = 5841 [pid 5841] set_robust_list(0x55556170f660, 24) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 executing program [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5841] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 5841] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=9, value_size=1048581, max_entries=2, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 4 [pid 5841] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x44\x00\x00\x00\x24\x00\x00\x08\x29\xbd\x70\x00\x00\xdc\xdf\x25\x60\x00\x00\x00\x00\x00\x00\x00\xf1\xff\xf2\xff\x01\x00\x0c\x00\xf3\xff\x08\x00\x09\x00\x01\x00\x63\x61\x6b\x65\x00\x00\x00\x00\x14\x00\x02\x00\x08\x00\x0a\x00\x00\x00\x00\x80\x08\x00\x0f\x00\x02\x00\x00\x00", iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_DONTROUTE|MSG_DONTWAIT|MSG_NOSIGNAL|MSG_BATCH}, MSG_PROBE) = 68 [ 87.058641][ T5841] netlink: 4 bytes leftover after parsing attributes in process `syz-executor402'. [ 87.068512][ T5841] netlink: 'syz-executor402': attribute type 15 has an invalid length. [ 87.078336][ T5841] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000055: 0000 [#1] SMP KASAN PTI [ 87.090278][ T5841] KASAN: null-ptr-deref in range [0x00000000000002a8-0x00000000000002af] [ 87.098901][ T5841] CPU: 0 UID: 0 PID: 5841 Comm: syz-executor402 Not tainted 6.14.0-syzkaller-13348-geaa517b77e63 #0 PREEMPT(full) [ 87.111160][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 87.121238][ T5841] RIP: 0010:rtnl_create_link+0x6af/0xea0 [ 87.126937][ T5841] Code: 24 20 42 80 3c 28 00 74 08 48 89 df e8 4a 3a 3b f8 4c 89 64 24 28 bd a8 02 00 00 48 89 5c 24 08 48 03 2b 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 22 3a 3b f8 45 31 e4 48 83 7d 00 [ 87.146580][ T5841] RSP: 0018:ffffc900040b6e70 EFLAGS: 00010206 [ 87.152787][ T5841] RAX: 0000000000000055 RBX: ffff888035860008 RCX: ffff888030a01e00 [ 87.160761][ T5841] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 87.168817][ T5841] RBP: 00000000000002a8 R08: ffffffff89f245f9 R09: 1ffff92000816dfa [ 87.176789][ T5841] R10: dffffc0000000000 R11: fffff52000816dfb R12: ffff8880212e0080 [ 87.184876][ T5841] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888035860000 [ 87.192855][ T5841] FS: 000055556170f380(0000) GS:ffff888124f96000(0000) knlGS:0000000000000000 [ 87.201805][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.208400][ T5841] CR2: 000000000045ad50 CR3: 000000007c1d2000 CR4: 00000000003526f0 [ 87.216379][ T5841] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.224367][ T5841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.232412][ T5841] Call Trace: [ 87.235694][ T5841] [ 87.238640][ T5841] rtnl_newlink_create+0x2f2/0xcb0 [ 87.243762][ T5841] ? __mutex_lock+0x380/0x10c0 [ 87.248535][ T5841] ? __pfx_aa_get_newest_label+0x10/0x10 [ 87.254188][ T5841] ? __pfx_rtnl_newlink_create+0x10/0x10 [ 87.259833][ T5841] ? __pfx___mutex_lock+0x10/0x10 [ 87.264864][ T5841] ? ns_capable+0x8a/0xf0 [ 87.269196][ T5841] rtnl_newlink+0x18b0/0x1fe0 [ 87.273882][ T5841] ? __pfx_rtnl_newlink+0x10/0x10 [ 87.279029][ T5841] ? do_raw_spin_unlock+0x13c/0x8b0 [ 87.284243][ T5841] ? __lock_acquire+0xad5/0xd80 [ 87.289096][ T5841] ? __lock_acquire+0xad5/0xd80 [ 87.293949][ T5841] ? __lock_acquire+0xad5/0xd80 [ 87.298814][ T5841] ? is_bpf_text_address+0x26/0x2a0 [ 87.304016][ T5841] ? is_bpf_text_address+0x288/0x2a0 [ 87.309302][ T5841] ? is_bpf_text_address+0x26/0x2a0 [ 87.314501][ T5841] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 87.320659][ T5841] ? kernel_text_address+0xa7/0xe0 [ 87.325769][ T5841] ? __kernel_text_address+0xd/0x40 [ 87.330968][ T5841] ? aa_get_newest_label+0x101/0x6f0 [ 87.336349][ T5841] ? __lock_acquire+0xad5/0xd80 [ 87.341302][ T5841] ? __pfx_rtnl_newlink+0x10/0x10 [ 87.346333][ T5841] rtnetlink_rcv_msg+0x80f/0xd70 [ 87.351273][ T5841] ? rtnetlink_rcv_msg+0x1ba/0xd70 [ 87.356407][ T5841] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 87.361872][ T5841] ? __lock_acquire+0xad5/0xd80 [ 87.366730][ T5841] netlink_rcv_skb+0x208/0x480 [ 87.371503][ T5841] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 87.377079][ T5841] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 87.382453][ T5841] ? netlink_deliver_tap+0x2e/0x1b0 [ 87.387857][ T5841] ? netlink_deliver_tap+0x2e/0x1b0 [ 87.393070][ T5841] netlink_unicast+0x7f8/0x9a0 [ 87.397844][ T5841] ? __pfx_netlink_unicast+0x10/0x10 [ 87.403137][ T5841] ? skb_put+0x114/0x1f0 [ 87.407390][ T5841] netlink_sendmsg+0x8c3/0xcd0 [ 87.412167][ T5841] ? __pfx_netlink_sendmsg+0x10/0x10 [ 87.417459][ T5841] ? aa_sock_msg_perm+0x91/0x160 [ 87.422496][ T5841] ? __pfx_netlink_sendmsg+0x10/0x10 [ 87.427904][ T5841] __sock_sendmsg+0x221/0x270 [ 87.432592][ T5841] ____sys_sendmsg+0x523/0x860 [ 87.437370][ T5841] ? __pfx_____sys_sendmsg+0x10/0x10 [ 87.442663][ T5841] __sys_sendmsg+0x271/0x360 [ 87.447353][ T5841] ? __pfx___sys_sendmsg+0x10/0x10 [ 87.452483][ T5841] do_syscall_64+0xf3/0x230 [ 87.457097][ T5841] ? clear_bhb_loop+0x45/0xa0 [ 87.461865][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.467762][ T5841] RIP: 0033:0x7ff3d9feac39 [ 87.472218][ T5841] 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 [ 87.491839][ T5841] RSP: 002b:00007ffe861803d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 87.500435][ T5841] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff3d9feac39 [ 87.508411][ T5841] RDX: 0000000004000000 RSI: 0000200000000000 RDI: 0000000000000003 [ 87.516481][ T5841] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 87.524541][ T5841] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.532518][ T5841] R13: 0000200000000110 R14: 0000200000000088 R15: 0000000000000001 [ 87.540500][ T5841] [ 87.543618][ T5841] Modules linked in: [ 87.547846][ T5841] ---[ end trace 0000000000000000 ]--- [ 87.560055][ T5841] RIP: 0010:rtnl_create_link+0x6af/0xea0 [ 87.566139][ T5841] Code: 24 20 42 80 3c 28 00 74 08 48 89 df e8 4a 3a 3b f8 4c 89 64 24 28 bd a8 02 00 00 48 89 5c 24 08 48 03 2b 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 22 3a 3b f8 45 31 e4 48 83 7d 00 [ 87.586355][ T5841] RSP: 0018:ffffc900040b6e70 EFLAGS: 00010206 [ 87.592805][ T5841] RAX: 0000000000000055 RBX: ffff888035860008 RCX: ffff888030a01e00 [ 87.601054][ T5841] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 87.609513][ T5841] RBP: 00000000000002a8 R08: ffffffff89f245f9 R09: 1ffff92000816dfa [ 87.617816][ T5841] R10: dffffc0000000000 R11: fffff52000816dfb R12: ffff8880212e0080 [ 87.625835][ T5841] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888035860000 [ 87.634110][ T5841] FS: 000055556170f380(0000) GS:ffff888125096000(0000) knlGS:0000000000000000 [ 87.643150][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.649923][ T5841] CR2: 0000200000000140 CR3: 000000007c1d2000 CR4: 00000000003526f0 [ 87.658274][ T5841] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.666483][ T5841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.674568][ T5841] Kernel panic - not syncing: Fatal exception [ 87.680989][ T5841] Kernel Offset: disabled [ 87.685505][ T5841] Rebooting in 86400 seconds..