Linux Distros Unpatched Vulnerability : CVE-2026-53247

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: ethernet: mtkethsoc: Fix use-after-free in metadata dst teardown mtkfreedev calls metadatadstfree which frees the metadatadst with kfree immediately,...

SUSE CVE-2026-53248

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Fix use-after-free in metadata dst teardown airohametadatadstfree runs metadatadstfree which frees the metadatadst with kfree immediately, bypassing the RCU grace period. In the RX path, skbdstsetnoref sets a...

UBUNTU-CVE-2026-53248

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Fix use-after-free in metadata dst teardown airohametadatadstfree runs metadatadstfree which frees the metadatadst with kfree immediately, bypassing the RCU grace period. In the RX path, skbdstsetnoref sets a...

CVE-2026-53247

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtkethsoc: Fix use-after-free in metadata dst teardown mtkfreedev calls metadatadstfree which frees the metadatadst with kfree immediately, bypassing the RCU grace period. In the RX path, skbdstsetnoref sets a...

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...

PT-2026-52307

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft tunnel: fix use-after-free on object destroy nft tunnel obj destroy calls metadata dst free which directly kfrees the metadata dst, ignoring the dst entry refcount. Packets that took a reference via dst hold in nft...

PT-2026-43680

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the bareudp fill metadata dst function. The function passes bareudp-sock to udp tunnel6 dst lookup in the IPv6 path without performing a NULL check...

DEBIAN-CVE-2022-50004

In the Linux kernel, the following vulnerability has been resolved: xfrm: policy: fix metadata dst-dev xmit null pointer dereference When we try to transmit an skb with metadatadst attached i.e. dst-dev == NULL through xfrm interface we can hit a null pointer dereference1 in xfrmixmit2 -...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: macsec: Fixed a use-after-free issue during the sending of the offloading packet. KASAN reports the following UAF. The metadatadst, which is used to store the SCI value for macsec offloading, is already freed by metadatadstfre...

DEBIAN-CVE-2024-50261

In the Linux kernel, the following vulnerability has been resolved: macsec: Fix use-after-free while sending the offloading packet KASAN reports the following UAF. The metadatadst, which is used to store the SCI value for macsec offload, is already freed by metadatadstfree in macsecfreenetdev,...