{"id":"AZL-110453","summary":"CVE-2026-98375 affecting package kernel 6.6.157.1-1","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":"2026-10-30T05:35:37Z","published":"2026-10-09T08:16:55Z","upstream":["CVE-2026-98375"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98375"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.157.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-110453.json"}}],"schema_version":"1.9.2"}