{"id":"AZL-64761","summary":"CVE-2025-38190 affecting package kernel for versions less than 6.6.96.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\natm: Revert atm_account_tx() if copy_from_iter_full() fails.\n\nIn vcc_sendmsg(), we account skb-\u003etruesize to sk-\u003esk_wmem_alloc by\natm_account_tx().\n\nIt is expected to be reverted by atm_pop_raw() later called by\nvcc-\u003edev-\u003eops-\u003esend(vcc, skb).\n\nHowever, vcc_sendmsg() misses the same revert when copy_from_iter_full()\nfails, and then we will leak a socket.\n\nLet's factorise the revert part as atm_return_tx() and call it in\nthe failure path.\n\nNote that the corresponding sk_wmem_alloc operation can be found in\nalloc_tx() as of the blamed commit.\n\n  $ git blame -L:alloc_tx net/atm/common.c c55fa3cccbc2c~","modified":"2026-04-01T05:20:23.373547Z","published":"2025-07-04T14:15:26Z","upstream":["CVE-2025-38190"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38190"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.96.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-64761.json"}}],"schema_version":"1.7.5"}