{"id":"AZL-88574","summary":"CVE-2026-46023 affecting package kernel for versions less than 6.6.141.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm mirror: fix integer overflow in create_dirty_log()\n\nThe argument count calculation in create_dirty_log() performs\n`*args_used = 2 + param_count` before validating against argc. When a\nuser provides a param_count close to UINT_MAX via the device mapper\ntable string, this unsigned addition wraps around to a small value,\ncausing the subsequent `argc \u003c *args_used` check to be bypassed.\n\nThe overflowed param_count is then passed as argc to dm_dirty_log_create(),\nwhere it can cause out-of-bounds reads on the argv array.\n\nFix by comparing param_count against argc - 2 before performing the\naddition, following the same pattern used by parse_features() in the\nsame file. Since argc \u003e= 2 is already guaranteed, the subtraction is\nsafe.","modified":"2026-08-28T17:47:39.008476339Z","published":"2026-05-27T14:17:20Z","upstream":["CVE-2026-46023"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46023"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.141.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-88574.json"}}],"schema_version":"1.9.0"}