CVEvulnerability
CVE-2026-80714
9.8 CRITICAL
Official page ↗
- Status
- Received
- Published
- 2026-08-28
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
- https://git.kernel.org/stable/c/06d1d9b56ef8132fbf85006885eb43d9510b8b02 git.kernel.org
- https://git.kernel.org/stable/c/300348e3ba1521b003d59825f97e24f9a6859688 git.kernel.org
- https://git.kernel.org/stable/c/44af98cc7d5ef8e730488d5df1eecd5deeaa5947 git.kernel.org
- https://git.kernel.org/stable/c/4649e6faeecdc2d44bfa6ccbe405eef27e55d816 git.kernel.org
- https://git.kernel.org/stable/c/a63d2dbaeb50a85d4c976b15a36e6b0c7113db5b git.kernel.org
- https://git.kernel.org/stable/c/acbdc276091b308ca7794acb86e761f8203e2f59 git.kernel.org
- https://git.kernel.org/stable/c/b5ee5b266f833601ac4817f6df0bc496fc376a28 git.kernel.org
- https://git.kernel.org/stable/c/e7acfc990c29890c883d0d0ce3f737d003a43b44 git.kernel.org