{"id":"CVE-2026-74341","summary":"wifi: wcn36xx: fix heap overflow from oversized firmware HAL response","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wcn36xx: fix heap overflow from oversized firmware HAL response\n\nThe firmware response dispatcher copies all synchronous HAL responses\ninto the 4096-byte hal_buf without validating the response length. A\nresponse exceeding WCN36XX_HAL_BUF_SIZE causes a heap buffer overflow\nwith firmware-controlled content.\n\nAdd a bounds check on the response length.","modified":"2026-08-16T03:48:49.582443668Z","published":"2026-08-15T05:58:31.238Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74341.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/15545ee71301e82d26d9a31b407ed0019eb62a60"},{"type":"WEB","url":"https://git.kernel.org/stable/c/18813b90032bfaafb225906a4d2b51be4dfc02c3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88a240d86d3d64521f9194abe185ac71cc74d0bd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfc67aee0c83e7f5d43a1dad3e25c789e9cc1d92"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dae9cadf0925f1cbfb71306d60490890df3870a6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74341.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74341"},{"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":"8e84c25821698bdef73c0329fb2022a4673b7adc"},{"fixed":"dae9cadf0925f1cbfb71306d60490890df3870a6"},{"fixed":"cfc67aee0c83e7f5d43a1dad3e25c789e9cc1d92"},{"fixed":"15545ee71301e82d26d9a31b407ed0019eb62a60"},{"fixed":"1b5d8a248c3afa640bcc99fa95abcd1e36f3ee18"},{"fixed":"18813b90032bfaafb225906a4d2b51be4dfc02c3"},{"fixed":"88a240d86d3d64521f9194abe185ac71cc74d0bd"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74341.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.13.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74341.json"}}],"schema_version":"1.9.0"}