{"id":"CVE-2026-68355","summary":"wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()\n\nWhen the first entry in msdu_details has a zero buffer address,\nthe code accesses msdu_details[i - 1] with i == 0, causing a\nbuffer underflow.\n\nFix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding\na separate check for i == 0 before the main condition to prevent\nthe out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","modified":"2026-08-12T04:18:48.146289619Z","published":"2026-08-10T12:03:32.321Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68355.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7f11e70629650ff6ea140984e5ce188b775b2683"},{"type":"WEB","url":"https://git.kernel.org/stable/c/904367381a922aa2dc3e8bd2488e6c9180516c7a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a154ca3c441a67d36b3a9ea63a4f11b06abe6223"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68355.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68355"},{"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":"d5c65159f2895379e11ca13f62feabe93278985d"},{"fixed":"69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a"},{"fixed":"904367381a922aa2dc3e8bd2488e6c9180516c7a"},{"fixed":"a154ca3c441a67d36b3a9ea63a4f11b06abe6223"},{"fixed":"725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5"},{"fixed":"7f11e70629650ff6ea140984e5ce188b775b2683"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68355.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.6.0"},{"fixed":"6.6.148"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.101"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68355.json"}}],"schema_version":"1.9.0"}