Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - ip6_tunnel使用 __ip6_tnl_rcv() 中的 skb_vlan_inet_prepare()將 syzbot 發現歸咎於提交並未處理 VLAN 封裝 [1]。使用 skb_vlan_inet_prepare()而非 pskb_inet_may_pull()。 [1] 錯誤KMSANINET_ECN_decapsulate include/net/inet_ecn.h:253 中的 uninit-value include/net/inet_ecn.h:253 [內嵌] 錯誤KMSANINET_ECN_decapsulate include/net/inet_ecn.h:275 中的 uninit-value [內嵌] 錯誤KMSANuninit - IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 __INET_ECN_decapsulate include/net/inet_ecn.h:253 中的值 [內嵌] INET_ECN_decapsulate include/net/inet_ecn.h:275 [內嵌] IP6_ECN_decapsulate+0x7a8/0x1fa0 包含/ net/inet_ecn.h:321 ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729 __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860 ip6_tnl_rcv+0xc3/0x100 net/ipv9036/rc6_vtunnel.:c +0x1529/0x1b90 net/ipv6/ip6_gre.c:-1 ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input.c:438 ip6_input_finish+0x1f4/0x4a0 net/ipv6/ip6_input.c:489 NF_HOOK include/linux/netfilter.h :318 [內嵌] ip6_input+0x9c/0x330 net/ipv6/ip6_input.c:500 ip6_mc_input+0x7ca/0xc10 net/ipv6/ip6_input.c:590 dst_input include/net/dst.h:474 [內嵌] ip6_rcv_finish+0x958/ 0x990 net/ipv6/ip6_input。 c:79 NF_HOOK include/linux/netfilter.h:318 [內嵌] ipv6_rcv+0xf1/0x3c0 net/ipv6/ip6_input.c:311 __netif_receive_skb_one_core net/core/dev.c:6139 [內嵌]
    __netif_receive_skb+0x1df/0xac0 net/core/dev.c:6252 netif_receive_skb_internal net/core/dev.c:6338 [內嵌] netif_receive_skb+0x57/0x630 net/core/dev.c:6397 tun_rx_batched+0x1df/0x980 drivers/net/ tun.c:1485 tun_get_user+0x5c0e/0x6c60 drivers/net/tun.c:1953 tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [內嵌] vfs_write+0xbe2/0x15d0 fs /read_write.c:686 ksys_write fs/read_write.c:738 [內嵌] __do_sys_write fs/read_write.c:749 [內嵌]
    __se_sys_write fs/read_write.c:746 [內嵌] __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746 x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/ syscall_64.c:63 [內嵌] do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit 建立於 slab_post_alloc_hook mm/slub.c:4960 [內嵌] slab_alloc_node mm/slub。 c:5263 [內嵌] kmem_cache_alloc_node_noprof+0x9e7/0x17a0 mm/slub.c:5315 kmalloc_reserve+0x13c/0x4b0 net/core/skbuff.c:586 __alloc_skb+0x805/0x1040 net/core/skbuff.c:690 alloc_skb include/linux /skbuff.h:1383 [內嵌] alloc_skb_with_frags+0xc5/0xa60 net/core/skbuff.c:6712 sock_alloc_send_pskb+0xacc/0xc60 net/core/sock.c:2995 tun_alloc_skb drivers/net/tun.c:1461 [內嵌] tun_get_user+0x1142/0x6c60 drivers/net/tun.c:1794 tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [內嵌] vfs_write+0xbe2/0x15d0 fs/read_write.c 686 ksys_write fs/read_write.c 738 [內嵌] __do_sys_write fs/read_write.c:749 [內嵌] __se_sys_write fs/read_write.c:746 [內嵌] __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746 x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated /asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [內嵌] do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU0 UID0 PID6465 Commsyz.0.17 未受污染的 syzkaller #0 PREEMPT(none) 硬體名稱 Google Google Compute Engine/Google Compute EngineBIOS Google 2025 年 10 月 25 日 (CVE-2026-23003)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

偵測

Linux Distros 未修補的弱點：CVE-2026-23003

medium Nessus Plugin ID 296526

版本 1.31