{"id":"CVE-2026-98190","summary":"wifi: wilc1000: fix out-of-bounds read in P2P public action frames","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: fix out-of-bounds read in P2P public action frames\n\nwilc_wfi_p2p_rx() and mgmt_tx() start parsing a frame once\nieee80211_is_public_action() returns true. That helper only verifies the\nframe is long enough for the action category field, that is\noffsetofend(struct ieee80211_mgmt, u.action.category), 25 bytes. Both\nfunctions then read the P2P public action header up to oui_subtype at\noffset 30 and pass \"size - ie_offset\" to cfg80211_find_vendor_ie(), where\nie_offset is offsetof(struct ieee80211_mgmt, u) + sizeof(*d), i.e. 32.\n\nA public action frame of 25 to 31 bytes passes the check but is shorter\nthan that 32 byte header, so oui_subtype can be read out of bounds, and\nbecause the length is unsigned, \"size - ie_offset\" underflows to a value\nclose to 4 GiB. cfg80211_find_vendor_ie() takes an unsigned int length,\nso even the size_t subtraction in mgmt_tx() is truncated to the same\nvalue. It then walks far past the buffer searching for a vendor element\nuntil it reaches unmapped memory.\n\nIn the receive path the frame arrives over the air and needs no\nassociation, so a nearby unauthenticated device can crash the host while\nit is in P2P listen. Reject frames shorter than the P2P public action\nheader in both paths before dereferencing it.","modified":"2026-10-08T02:52:53.053849568Z","published":"2026-10-06T08:44:31.520Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98190.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/491df93b10d76aebaf6aa4bb05a6ba897f4fccfb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/68b786691ce24c5c94e28811db243e573c50f9c1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6fbe76eb2796d2aee45cc6a2dd16e85d3cc96304"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a5b827dad8a3037cef04d0240d1c2acb1557101e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba6cb7c0868a412c2eb68e8efd5aa38bfb258a14"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc2ee642ebeac8699b671ddb6d5955a785e5ff43"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e98ad9f4c59f2e836f8d971b57763a4277680422"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f0c46f8111a479b97b8ab17747c528cade6257f1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98190.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98190"},{"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":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef"},{"fixed":"e98ad9f4c59f2e836f8d971b57763a4277680422"},{"fixed":"f0c46f8111a479b97b8ab17747c528cade6257f1"},{"fixed":"a5b827dad8a3037cef04d0240d1c2acb1557101e"},{"fixed":"491df93b10d76aebaf6aa4bb05a6ba897f4fccfb"},{"fixed":"cc2ee642ebeac8699b671ddb6d5955a785e5ff43"},{"fixed":"68b786691ce24c5c94e28811db243e573c50f9c1"},{"fixed":"6fbe76eb2796d2aee45cc6a2dd16e85d3cc96304"},{"fixed":"ba6cb7c0868a412c2eb68e8efd5aa38bfb258a14"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98190.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.7.0"},{"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-2026-98190.json"}}],"schema_version":"1.9.0"}