{"id":"AZL-96468","summary":"CVE-2026-74386 affecting package kernel 6.6.150.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: fix page fragment cache leak in error path\n\nIn nvmet_tcp_alloc_queue(), when a connection is closed during the\nallocation process (e.g., nvmet_tcp_set_queue_sock() returns -ENOTCONN),\nthe error handling jumps to out_destroy_sq and then to out_ida_remove\nwithout draining the page fragment cache.\n\nAlthough nvmet_tcp_free_cmd() is called in some error paths to release\nindividual page fragments, the underlying page cache reference held by\nqueue-\u003epf_cache is never released. The first allocation using pf_cache\nis the call to nvmet_tcp_alloc_cmd() for queue-\u003econnect, which happens\nafter ida_alloc() returns successfully. This results in a page leak each\ntime a connection fails during allocation, which could lead to memory\nexhaustion over time if connections are repeatedly opened and closed.\n\nFix this by calling page_frag_cache_drain() before freeing the queue\nstructure in the out_ida_remove label.","modified":"2026-09-14T17:34:05Z","published":"2026-08-15T06:22:40Z","upstream":["CVE-2026-74386"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74386"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.150.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96468.json"}}],"schema_version":"1.9.0"}