xdp: produce a warning when calculated tailroom is negative

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CVE-2026-23377

A flaw was found in the Linux kernel, specifically within the ice network driver and the eXpress Data Path XDP component. This vulnerability arises from an incorrect calculation of the fragsize in XDP receive queue information, which can lead to an invalid memory state known as "negative tailroom...

CVE-2026-23343

In the Linux kernel, the following vulnerability has been resolved: xdp: produce a warning when calculated tailroom is negative Many ethernet drivers report xdp Rx queue frag size as being the same as DMA write size. However, the only user of this field, namely bpfxdpfragsincreasetail, clearly...

CVE-2026-23343

In the Linux kernel, the following vulnerability has been resolved: xdp: produce a warning when calculated tailroom is negative Many ethernet drivers report xdp Rx queue frag size as being the same as DMA write size. However, the only user of this field, namely bpfxdpfragsincreasetail, clearly...

CVE-2026-23343 xdp: produce a warning when calculated tailroom is negative

In the Linux kernel, the following vulnerability has been resolved: xdp: produce a warning when calculated tailroom is negative Many ethernet drivers report xdp Rx queue frag size as being the same as DMA write size. However, the only user of this field, namely bpfxdpfragsincreasetail, clearly...

CVE-2026-23343

CVE-2026-23343 involves the Linux kernel XDP tailroom calculation. Docked fixes describe that many ethernet drivers expose rx queue frag size, while xdp_frags_increase_tail() expects a truesize, causing unsigned tailroom to drift toward UINT_MAX and potentially grow tail space, leading to memory ...

Linux Distros Unpatched Vulnerability : CVE-2026-23343

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xdp: produce a warning when calculated tailroom is negative Many ethernet drivers report xdp Rx queue frag size as being the same as DMA write size. However, th...

PT-2026-27708

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.19.0-rc1+ 21 Description The Linux kernel contained a flaw in the XDP eXpress Data Path implementation where a negative tailroom could be calculated. This occurs when ethernet drivers report XDP RX queue frag...