{"id":"CVE-2026-98375","published":"2026-10-09T08:16:55.807","lastModified":"2026-10-11T14:17:08.097","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen/netfront: drop RX packets with a short Ethernet header\n\nhandle_incoming_queue() pulls pull_to bytes into the head before\ncalling eth_type_trans().  pull_to is the length of the first RX slot,\ncapped at RX_COPY_THRESHOLD, and that length comes from the backend.\nNothing checks it against ETH_HLEN.\n\nIf the first slot is shorter than ETH_HLEN and more slots follow, the\nhead ends up shorter than an Ethernet header while skb->len is longer,\nand eth_type_trans() BUG()s in __skb_pull().  If the whole packet is\nshorter than ETH_HLEN, eth_type_trans() reads the header past the end\nof the data instead.\n\nPull at least ETH_HLEN, and drop the packet if that fails, which also\ndrops packets too short to hold an Ethernet header.  This also checks\nthe return value of the pull, which was ignored.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/089e58805c452e52179482b1025a8e309a57f801","tags":[]},{"url":"https://git.kernel.org/stable/c/72d2f54367895d6e236b9857892e2e6b6036e067","tags":[]},{"url":"https://git.kernel.org/stable/c/e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2026/10/09/3","tags":[]},{"url":"http://xenbits.xen.org/xsa/advisory-522.html","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}