CVE-2026-43092

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> xsk: validate MTU against usable frame size on bind<br /> <br /> AF_XDP bind currently accepts zero-copy pool configurations without<br /> verifying that the device MTU fits into the usable frame space provided<br /> by the UMEM chunk.<br /> <br /> This becomes a problem since we started to respect tailroom which is<br /> subtracted from chunk_size (among with headroom). 2k chunk size might<br /> not provide enough space for standard 1500 MTU, so let us catch such<br /> settings at bind time. Furthermore, validate whether underlying HW will<br /> be able to satisfy configured MTU wrt XSK&amp;#39;s frame size multiplied by<br /> supported Rx buffer chain length (that is exposed via<br /> net_device::xdp_zc_max_segs).