{"id":"CVE-2026-98375","summary":"xen/netfront: drop RX packets with a short Ethernet header","details":"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-\u003elen 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.","modified":"2026-10-11T02:47:29.300519894Z","published":"2026-10-09T07:10:45.930Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98375.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/10/09/3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/089e58805c452e52179482b1025a8e309a57f801"},{"type":"ADVISORY","url":"http://xenbits.xen.org/xsa/advisory-522.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98375.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98375"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0d160211965b79de989cf2d170985abeb8da5ec6"},{"fixed":"089e58805c452e52179482b1025a8e309a57f801"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98375.json"}}],"schema_version":"1.9.0"}