{"id":"CVE-2026-64536","summary":"staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop","details":"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-\u003eelement_id and pIE-\u003elength are read without checking that\n  i + sizeof(*pIE) \u003c= 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-\u003edata + 12,\n  which requires pIE-\u003elength \u003e= 16.  For WLAN_EID_RSN it compares\n  pIE-\u003edata + 8, requiring pIE-\u003elength \u003e= 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-\u003elength minimum, matching the\npattern established in update_beacon_info().","modified":"2026-08-18T03:31:22.172105194Z","published":"2026-07-27T06:36:04.736Z","related":["openSUSE-SU-2026:11476-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64536.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64536.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64536"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"554c0a3abf216c991c5ebddcdb2c08689ecd290b"},{"fixed":"ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7"},{"fixed":"d2055332297e24c63fffda943ef7a5eefc0a6019"},{"fixed":"6f26cc55affd9d7f88ae2f5d12db4ecf9072c209"},{"fixed":"204b22c8df115370037248859bf0fa62db73a396"},{"fixed":"a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395"},{"fixed":"4380b3860d887a13555ff024a58dfc05b490dfd6"},{"fixed":"3bf39f711ff27c64be8680a8938bcc5001982e81"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64536.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.12.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.96"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.39"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64536.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"}]}