{"id":"AZL-104042","summary":"CVE-2026-97408 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: validate connectionless PSM length\n\nConnectionless L2CAP frames carry a two-byte PSM at the start of the\npayload.  l2cap_recv_frame() currently reads that PSM unconditionally\nafter validating only the outer L2CAP length.\n\nA malformed connectionless frame with a zero- or one-byte payload can\ntherefore make the parser read beyond the advertised skb payload and use\ntailroom bytes as part of the PSM.  A VHCI-backed QEMU reproducer\ninjected a one-byte connectionless payload and reached the unchecked\nread.\n\nReject connectionless frames that cannot contain the PSM before reading\nor pulling it.  This preserves all valid connectionless frames while\ndropping only structurally incomplete packets.","modified":"2026-09-25T14:15:58.035216586Z","published":"2026-09-24T17:17:18Z","upstream":["CVE-2026-97408"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97408"}],"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-104042.json"}}],"schema_version":"1.9.0"}