{"id":"AZL-88854","summary":"CVE-2026-46155 affecting package kernel for versions less than 6.6.141.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix out-of-bounds read in smb2_compound_op()\n\nIf a server sends a truncated response but a large OutputBufferLength, and\nterminates the EA list early, check_wsl_eas() returns success without\nvalidating that the entire OutputBufferLength fits within iov_len.\n\nThen smb2_compound_op() does:\n    memcpy(idata-\u003ewsl.eas, data[0], size[0]);\n\nWhere size[0] is OutputBufferLength. If iov_len is smaller than size[0],\nmemcpy can read beyond the end of the rsp_iov allocation and leak adjacent\nkernel heap memory.","modified":"2026-08-28T17:48:09.926293991Z","published":"2026-05-28T10:16:31Z","upstream":["CVE-2026-46155"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46155"}],"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-88854.json"}}],"schema_version":"1.9.0"}