{"id":"CVE-2025-38128","title":"Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: reject malformed HCI_CMD_SYNC commands\n\nIn 'mgmt_hci_cmd_sync()', check whether the size of parameters passed\nin 'struct mgmt_cp_hci_cmd_sync' matches …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 827af4787e74e8df9e8e0677a69fbb15e0856d2f < 9eeafd16d76a7642d12b3442a26c15cd345e12f7","Linux >= 827af4787e74e8df9e8e0677a69fbb15e0856d2f < 03f1700b9b4d4f2fed3165370f3c23db76553178","Linux 6.13"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:50:10.502436Z"},"published":"2025-07-03","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:52:16.965Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38128","references":[{"url":"https://git.kernel.org/stable/c/9eeafd16d76a7642d12b3442a26c15cd345e12f7"},{"url":"https://git.kernel.org/stable/c/03f1700b9b4d4f2fed3165370f3c23db76553178"}],"tags":["cve.org"],"epss":0.00163,"epssPercentile":0.05574,"ingestedAt":"2026-11-05T22:38:31.922Z","slug":"CVE-2025-38128","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: reject malformed HCI_CMD_SYNC commands\n\nIn 'mgmt_hci_cmd_sync()', check whether the size of parameters passed\nin 'struct mgmt_cp_hci_cmd_sync' matches the total size of the data\n(i.e. 'sizeof(struct mgmt_cp_hci_cmd_sync)' plus trailing bytes).\nOtherwise, large invalid 'params_len' will cause 'hci_cmd_sync_alloc()'\nto do 'skb_put_data()' from an area beyond the one actually passed to\n'mgmt_hci_cmd_sync()'.\n\n## Affected\n\n- `Linux >= 827af4787e74e8df9e8e0677a69fbb15e0856d2f < 9eeafd16d76a7642d12b3442a26c15cd345e12f7`\n- `Linux >= 827af4787e74e8df9e8e0677a69fbb15e0856d2f < 03f1700b9b4d4f2fed3165370f3c23db76553178`\n- `Linux 6.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}