{"id":"CVE-2026-64536","revision":"4f43b0e76cc2445592515424484b323f","records":[{"revision":"4f43b0e76cc2445592515424484b323f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64536","aliases":[],"title":"staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop\n\nThe loop in is_ap_in_tkip() iterates over IEs without verifying that\nenough bytes remain before dereferencing the IE header or its payload:\n\n- pIE->element_id and pIE->length are read without checking that\n  i + sizeof(*pIE) <= ie_length, so a truncated IE at the end of the\n  buffer causes an OOB read.\n\n- For WLAN_EID_VENDOR_SPECIFIC the code compares pIE->data + 12,\n  which requires pIE->length >= 16.  For WLAN_EID_RSN it compares\n  pIE->data + 8, requiring pIE->length >= 12.  Neither requirement\n  is checked.\n\nAdd the missing IE header and payload bounds checks and guard each\ndata access with an explicit pIE->length minimum, matching the\npattern established in update_beacon_info().","state":0,"publishedAt":"2026-07-27T06:36:04.736+00:00","modifiedAt":"2026-10-19T20:48:39.153+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/staging/rtl8723bs/core/rtw_wlan_util.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n                            \"lessThan\": \"ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n                            \"lessThan\": \"d2055332297e24c63fffda943ef7a5eefc0a6019\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n                            \"lessThan\": \"6f26cc55affd9d7f88ae2f5d12db4ecf9072c209\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n                            \"lessThan\": \"204b22c8df115370037248859bf0fa62db73a396\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n                            \"lessThan\": \"a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n                            \"lessThan\": \"4380b3860d887a13555ff024a58dfc05b490dfd6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n                            \"lessThan\": \"3bf39f711ff27c64be8680a8938bcc5001982e81\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/staging/rtl8723bs/core/rtw_wlan_util.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.12\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.212\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.96\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.39\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.4\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7","https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019","https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209","https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396","https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395","https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6","https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64536","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64536","identifiers":["CVE-2026-64536"]},"retained":false,"historicalAffected":[]}],"coverage":[]}