{"id":"CVE-2026-68196","summary":"wifi: wilc1000: validate assoc response length before subtracting header","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: validate assoc response length before subtracting header\n\nwilc_parse_assoc_resp_info() computes the trailing IE length as\n\n\ties_len = buffer_len - sizeof(*res);\n\nwithout first checking that buffer_len is at least sizeof(struct\nwilc_assoc_resp) (6 bytes). buffer_len is the length reported for a\nreceived association response (host_int_parse_assoc_resp_info() passes\nhif_drv-\u003eassoc_resp / assoc_resp_info_len straight in) and must be\nvalidated before the driver accesses the fixed header.\n\nFor a frame shorter than the 6-byte fixed header, the subtraction wraps.\nFor a four-byte response the result is truncated to a u16 ies_len of\n65534, so kmemdup() then attempts to copy 65534 bytes starting at\nbuffer + sizeof(*res), beyond the valid association-response data\n(CWE-125). A response shorter than four bytes can also cause an\nout-of-bounds read of res-\u003estatus_code at offsets 2 and 3.\n\nReject frames too short to hold the fixed header before touching the\nheader or computing ies_len. Also set the connection status to a failure\non this path: the caller falls through to a\n\"conn_info-\u003estatus == WLAN_STATUS_SUCCESS\" check after the parser\nreturns, so leaving the status untouched could let a malformed short\nresponse be treated as a successful association.","modified":"2026-08-21T03:30:15.844772579Z","published":"2026-08-10T12:00:14.686Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68196.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d410320e8ae5933e651660c9fadc1d380309e23"},{"type":"WEB","url":"https://git.kernel.org/stable/c/584c8954ad55f8b09b475be6db710fe40ceb988c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ccdf8c8de87a9580df37c3c1ec53ba88cedef65"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8d50acf5420de0c4da99c2d634731c9d3164a755"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b81d0ea9e1daa215b3da68c1f4f6fb07940c2f6a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d79b92417f33424ff23dad76716ed8f2cefb1083"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e511e93abd6eeedcd5b3c55516241f414fbde64a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68196.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68196"},{"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":"c5c77ba18ea66aa05441c71e38473efb787705a4"},{"fixed":"d79b92417f33424ff23dad76716ed8f2cefb1083"},{"fixed":"b81d0ea9e1daa215b3da68c1f4f6fb07940c2f6a"},{"fixed":"8d50acf5420de0c4da99c2d634731c9d3164a755"},{"fixed":"584c8954ad55f8b09b475be6db710fe40ceb988c"},{"fixed":"4d410320e8ae5933e651660c9fadc1d380309e23"},{"fixed":"e511e93abd6eeedcd5b3c55516241f414fbde64a"},{"fixed":"8ccdf8c8de87a9580df37c3c1ec53ba88cedef65"},{"fixed":"4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68196.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.0"},{"fixed":"5.10.265"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.216"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.183"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"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/osv-test-cve-osv-conversion/osv-output/CVE-2026-68196.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:L/A:H"}]}