netfilter: nft_tunnel: fix use-after-free on object destroy

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CVE-2026-53212

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix use-after-free on object destroy nfttunnelobjdestroy calls metadatadstfree which directly kfrees the metadatadst, ignoring the dstentry refcount. Packets that took a reference via dsthold in...

CVE-2026-53212

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix use-after-free on object destroy nfttunnelobjdestroy calls metadatadstfree which directly kfrees the metadatadst, ignoring the dstentry refcount. Packets that took a reference via dsthold in...

EUVD-2026-39303

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix use-after-free on object destroy nfttunnelobjdestroy calls metadatadstfree which directly kfrees the metadatadst, ignoring the dstentry refcount. Packets that took a reference via dsthold in...

CVE-2026-53212 netfilter: nft_tunnel: fix use-after-free on object destroy

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix use-after-free on object destroy nfttunnelobjdestroy calls metadatadstfree which directly kfrees the metadatadst, ignoring the dstentry refcount. Packets that took a reference via dsthold in...

CVE-2026-53212

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix use-after-free on object destroy nfttunnelobjdestroy calls metadatadstfree which directly kfrees the metadatadst, ignoring the dstentry refcount. Packets that took a reference via dsthold in...

PT-2026-52307

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the netfilter nft tunnel component. The function nft tunnel obj destroy invokes metadata dst free, which performs a direct memory free of metadata dst...

ROS-20260121-73-0042

A vulnerability in the nfttunnel component of the Linux operating system kernel is related to an operation exceeding buffer boundaries in memory. Exploitation of the vulnerability may allow an intruder to affect confidentiality, integrity and availability of protected information...

Linux Distros Unpatched Vulnerability : CVE-2025-22056

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix geneveopt type confusion addition When handling multiple...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nfttunnel: fixed a type confusion issue with geneveopt. When handling multiple NFTATUNNELKEYOPTSGENEVE attributes, the parsing logic should process each geneveopt structure individually and compactly. Therefore, whe...

DEBIAN-CVE-2025-22056

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix geneveopt type confusion addition When handling multiple NFTATUNNELKEYOPTSGENEVE attributes, the parsing logic should place every geneveopt structure one by one compactly. Hence, when deciding the next...

AZL-61463 CVE-2025-22056 affecting package kernel for versions less than 6.6.92.2-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix geneveopt type confusion addition When handling multiple NFTATUNNELKEYOPTSGENEVE attributes, the parsing logic should place every geneveopt structure one by one compactly. Hence, when deciding the next...

CVE-2025-22056 netfilter: nft_tunnel: fix geneve_opt type confusion addition

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix geneveopt type confusion addition When handling multiple NFTATUNNELKEYOPTSGENEVE attributes, the parsing logic should place every geneveopt structure one by one compactly. Hence, when deciding the next...