PT-2026-37063 · Linux · Linux

Published 2026-05-05 · Updated 2026-05-05 · CVE-2026-43060

Mitre

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft ct: drop pending enqueued packets on removal

Packets sitting in nfqueue might hold a reference to:

• templates that specify the conntrack zone, because a percpu area is used and module removal is possible.
• conntrack timeout policies and helper, where object removal leave a stale reference.

Since these objects can just go away, drop enqueued packets to avoid stale reference to them.

If there is a need for finer grain removal, this logic can be revisited to make selective packet drop upon dependencies.

Related Identifiers

CVE-2026-43060

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-43060 · Security Note
• https://git.kernel.org/stable/c/3da0b946835f33bf36b459ead764c61a761e689b · Note
• https://git.kernel.org/stable/c/8a64e76933672b08bd85b63086f33432070fd729 · Note
• https://git.kernel.org/stable/c/ab50302190b303f847c4eba0e31a01a56dec596e · Note
• https://git.kernel.org/stable/c/f29a055e4f593e577805b41228b142b58f48df1b · Note
• https://git.kernel.org/stable/c/36eae0956f659e48d5366d9b083d9417f3263ddc · Note
• https://git.kernel.org/stable/c/e68a8db3a0546482b34e9ca5ca886bcf73eb37bb · Note
• https://git.kernel.org/stable/c/6802ff8beceb9c4254318e81c1395720438f2cc2 · Note
• https://git.kernel.org/stable/c/77da55dee67720e2b8d2db49a53334e6c017ee7b · Note