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CVE-2026-80714— ipvs: do not propagate one-packet flag to synced conns

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： ipvs：不要将单包标志（one-packet flag）传播到同步连接（synced conns） 同步连接可能在其目的端（destination）尚不存在时就被创建。当目的端后续被添加时， 会将目的端的连接标志（flags）复制到 中。 类型的连接不会被同步。如果一个已被哈希（hashed）的同步连接继承了 标志，过期处理逻辑可能会将其误判为单包连接，从而跳过对现有 哈希节点的解除链接（unlinking），导致残留的哈希节点指向一个已被释放的 ，造成悬空指针问题。 修

CVSS 9.8 · Critical EPSS 0.16% · P6

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 26ec037f9841e49cc5c615deb8e1e73e5beab2ca< 06d1d9b56ef8132fbf85006885eb43d9510b8b02 affected
26ec037f9841e49cc5c615deb8e1e73e5beab2ca< acbdc276091b308ca7794acb86e761f8203e2f59 affected
26ec037f9841e49cc5c615deb8e1e73e5beab2ca< 300348e3ba1521b003d59825f97e24f9a6859688 affected
26ec037f9841e49cc5c615deb8e1e73e5beab2ca< 44af98cc7d5ef8e730488d5df1eecd5deeaa5947 affected
26ec037f9841e49cc5c615deb8e1e73e5beab2ca< 4649e6faeecdc2d44bfa6ccbe405eef27e55d816 affected
26ec037f9841e49cc5c615deb8e1e73e5beab2ca< b5ee5b266f833601ac4817f6df0bc496fc376a28 affected
26ec037f9841e49cc5c615deb8e1e73e5beab2ca< e7acfc990c29890c883d0d0ce3f737d003a43b44 affected
26ec037f9841e49cc5c615deb8e1e73e5beab2ca< a63d2dbaeb50a85d4c976b15a36e6b0c7113db5b affected
… +10 more rows
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I. Basic Information for CVE-2026-80714

Vulnerability Information
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Vulnerability Title
ipvs: do not propagate one-packet flag to synced conns
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: do not propagate one-packet flag to synced conns Synced connections can be created before their destination exists. When the destination is later added, ip_vs_bind_dest() copies connection flags from the destination into cp->flags. IP_VS_CONN_F_ONE_PACKET connections are not synced. If a synced connection inherits IP_VS_CONN_F_ONE_PACKET while it is already hashed, expiry can treat it as a one-packet connection and skip unlinking the existing conn_tab node, leaving stale hash nodes pointing at a freed struct ip_vs_conn. Drop IP_VS_CONN_F_ONE_PACKET from destination flags when binding synced connections.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 26ec037f9841e49cc5c615deb8e1e73e5beab2ca ~ 06d1d9b56ef8132fbf85006885eb43d9510b8b02 -
Linux Linux 2.6.36 -

II. Public POCs for CVE-2026-80714

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III. Intelligence Information for CVE-2026-80714

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Patches & Fixes for CVE-2026-80714 (8)

Same Patch Batch · Linux · 2026-08-28 · 135 CVEs total

CVE-2026-80634 9.8 CRITICAL netfilter: flowtable: avoid num_encaps underflow on bridge VLAN untag
CVE-2026-80694 9.8 CRITICAL net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq_rx in poll_controller
CVE-2026-80681 9.8 CRITICAL vxlan: re-fetch eth header after route_shortcircuit()
CVE-2026-80674 9.8 CRITICAL ntfs: validate resident attribute lists and harden the validator
CVE-2026-80673 9.8 CRITICAL ntfs: bound the look-ahead attribute-list entry in ntfs_external_attr_find()
CVE-2026-80668 9.8 CRITICAL netfilter: nf_conntrack_expect: use conntrack GC to reap expectations
CVE-2026-80630 9.8 CRITICAL net/sched: sch_fq_codel: Do not call qdisc_tree_reduce_backlog during peek before restorin
CVE-2026-80617 9.8 CRITICAL net: airoha: fix foe_check_time allocation size
CVE-2026-80612 9.8 CRITICAL net: lwtunnel: Drop skb metadata before LWT encapsulation
CVE-2026-80609 9.8 CRITICAL qede: fix out-of-bounds check for cqe->len_list[]
CVE-2026-80600 9.8 CRITICAL batman-adv: dat: acquire ARP hw source only after skb realloc
CVE-2026-80693 9.3 CRITICAL idpf: bound interrupt-vector register fill to the allocated array
CVE-2026-80684 9.3 CRITICAL KVM: s390: pci: Fix NULL dereference on AIBV allocation failure
CVE-2026-80671 9.3 CRITICAL perf sched: Fix register_pid() overflow, strcpy, and BUG_ON
CVE-2026-80603 9.1 CRITICAL netfilter: nf_conntrack_irc: fix parse_dcc() off-by-one OOB read
CVE-2026-80670 9.1 CRITICAL perf tools: Use perf_env__get_cpu_topology() in machine__resolve()
CVE-2026-80721 8.8 HIGH Bluetooth: ISO: ensure no dangling hcon references in iso_conn
CVE-2026-80722 8.8 HIGH wifi: mac80211: validate individual TWT params before driver setup
CVE-2026-80724 8.8 HIGH ptp: vmclock: prevent read-only mappings from becoming writable
CVE-2026-80683 8.8 HIGH Bluetooth: SCO: give the socket its own sco_conn reference

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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