{"id":"CVE-2026-98407","summary":"wifi: rsi: fix heap OOB write on key removal","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: fix heap OOB write on key removal\n\nWhen a key is removed (data == NULL), rsi_hal_load_key() runs:\n\n\tmemset(&set_key[FRAME_DESC_SZ], 0, frame_len - FRAME_DESC_SZ);\n\nset_key is a struct rsi_set_key *, so the subscript is scaled by\nsizeof(struct rsi_set_key) (160 bytes): &set_key[FRAME_DESC_SZ] is\nskb-\u003edata + 2560, and the memset writes 144 zero bytes starting\n2.4KB past the end of the 160-byte skb data buffer, corrupting\nunrelated heap objects. The intended byte offset would have been\n(u8 *)set_key + FRAME_DESC_SZ.\n\nThe write fires on every DISABLE_KEY callback, so plain disconnects,\nroams and interface teardowns trigger it on real networks.\n\nThe memset is redundant: the whole buffer is zeroed right after\nallocation, so the frame sent to the device is byte-identical\nwithout it. Drop the else branch; normal operation is unaffected.\n\nDiscovered by Atuin - Automated Vulnerability Discovery Engine.","modified":"2026-10-15T02:47:35.010860864Z","published":"2026-10-14T13:27:41.799Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98407.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/00bea3589255603c38766cac4a4d6d36493b2556"},{"type":"WEB","url":"https://git.kernel.org/stable/c/62d40db89180cfab7a917395f9ffc1dac62b0019"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8dab6ee020b2cd951b670626ba44a95cd4deac3d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ac599cf8edf8aa2dae546f04d3f1849e32c2e738"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b79e2f6585c014c42384f4caa7a37b3e5d26179c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c67fb3b875a83f9ba92afea4036c7b541f77512a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f4f2852b664c3ff1436785cd11258a0ce25b74b3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98407.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98407"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"dad0d04fa7ba41ce603a01e8e64967650303e9a2"},{"fixed":"b79e2f6585c014c42384f4caa7a37b3e5d26179c"},{"fixed":"c67fb3b875a83f9ba92afea4036c7b541f77512a"},{"fixed":"62d40db89180cfab7a917395f9ffc1dac62b0019"},{"fixed":"00bea3589255603c38766cac4a4d6d36493b2556"},{"fixed":"ac599cf8edf8aa2dae546f04d3f1849e32c2e738"},{"fixed":"f4f2852b664c3ff1436785cd11258a0ce25b74b3"},{"fixed":"8dab6ee020b2cd951b670626ba44a95cd4deac3d"},{"fixed":"e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98407.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.15.0"},{"fixed":"5.10.271"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.222"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.54"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98407.json"}}],"schema_version":"1.9.0"}