{"id":"AZL-104000","summary":"CVE-2026-93811 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling\n\n1. When ndr_decode_v4_ntacl() fails, the code jumped to free_n_data\n   which only freed n.data, skipping kfree(acl.sd_buf) and leaking\n   the buffer. Zero-initialize struct xattr_ntacl acl, reorder error\n   labels to out_free to release acl.sd_buf on all error paths.\n\n2. if (acl.sd_size \u003c sizeof(struct smb_ntsd)) is true, original code\n   returned success without freeing sd_buf and left stale *pntsd.\n   Set rc = -EINVAL before jumping to out_free to return error code and\n   free buffer.","modified":"2026-09-25T14:15:56.475921327Z","published":"2026-09-24T17:17:14Z","upstream":["CVE-2026-93811"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93811"}],"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-104000.json"}}],"schema_version":"1.9.0"}