The vulnerability of the `tap_get_user_xdp()` function in the `drivers/net/tap.c` file of the Linux kernel’s network device driver allows a attacker to cause a service failure.

The vulnerability of the tapgetuserxdp function in the drivers/net/tap.c file of the Linux kernel’s network device driver module is related to the copying of buffers without checking the input data. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

Linux Distros Unpatched Vulnerability : CVE-2026-80905

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: tap: fix wrong transportheader when sending VLAN-tagged frame In tapgetuserxdp, when processing a VLAN-tagged frame e.g. ETHP8021Q, skbsetnetworkheader is...

CVE-2026-80905: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: tap: fix wrong transportheader when sending VLAN-tagged frame In tapgetuserxdp, when processing a VLAN-tagged frame e.g. ETHP8021Q, skbsetnetworkheader is called first to advance networkheader past the VLAN tag to the inner...

AZL-97242 CVE-2026-74684 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

CVE-2026-74684

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

CVE-2026-74684

This vulnerability is a NULL pointer dereference in the Linux kernel's net: tap module, specifically in tap_get_user_xdp(). When the vhost TX path passes an XDP buffer containing a GSO virtio-net header with the protocol field set to zero, tun_vnet_hdr_to_skb() can reach dev_parse_header_protocol...

CVE-2026-74684 net: tap: set skb->dev before parsing virtio net header in tap_get_user_xdp()

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

EUVD-2026-64371

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

CVE-2026-74684 net: tap: set skb->dev before parsing virtio net header in tap_get_user_xdp()

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

CVE-2026-74684: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

Linux Distros Unpatched Vulnerability : CVE-2026-74684

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 net: tap: NULL pointer derefence in devparseheaderprotocol when...

CVE-2026-46320

A flaw was found in the Linux kernel's tap driver. This vulnerability occurs in the tapgetuserxdp function, where allocated memory pages are not properly freed when processing rejected network frames. Specifically, if a frame is shorter than the expected Ethernet header length or if memory...

AZL-89690 CVE-2026-46320 affecting package kernel for versions less than 6.6.143.1-1

In the Linux kernel, the following vulnerability has been resolved: tap: free page on error paths in tapgetuserxdp tapgetuserxdp rejects a frame shorter than ETHHLEN with -EINVAL, and returns -ENOMEM when buildskb fails. Both paths jump to the err label without freeing the page that...

CVE-2026-46320: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tap: free page on error paths in tapgetuserxdp tapgetuserxdp rejects a frame shorter than ETHHLEN with -EINVAL, and returns -ENOMEM when buildskb fails. Both paths jump to the err label without freeing the page that...

CVE-2024-41090 tap: add missing verification for short frame

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tapgetuserxdp path, which could cause a corrupted skb to be sent downstack. Even before the skb is...

CVE-2024-41090

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tapgetuserxdp path, which could cause a corrupted skb to be sent downstack. Even before the skb is...

CVE-2024-41090: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tapgetuserxdp path, which could cause a corrupted skb to be sent downstack. Even before the skb is...