{"id":"CVE-2026-98190","state":"PUBLISHED","title":"wifi: wilc1000: fix out-of-bounds read in P2P public action frames","description":"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.","publishedAt":"2026-10-06T08:44:31.520Z","updatedAt":"2026-10-19T09:15:21.647Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"e98ad9f4c59f2e836f8d971b57763a4277680422","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"f0c46f8111a479b97b8ab17747c528cade6257f1","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"a5b827dad8a3037cef04d0240d1c2acb1557101e","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"491df93b10d76aebaf6aa4bb05a6ba897f4fccfb","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"cc2ee642ebeac8699b671ddb6d5955a785e5ff43","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"68b786691ce24c5c94e28811db243e573c50f9c1","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"6fbe76eb2796d2aee45cc6a2dd16e85d3cc96304","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"ba6cb7c0868a412c2eb68e8efd5aa38bfb258a14","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/microchip/wilc1000/cfg80211.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/microchip/wilc1000/cfg80211.c"]}],"references":["https://git.kernel.org/stable/c/e98ad9f4c59f2e836f8d971b57763a4277680422","https://git.kernel.org/stable/c/f0c46f8111a479b97b8ab17747c528cade6257f1","https://git.kernel.org/stable/c/a5b827dad8a3037cef04d0240d1c2acb1557101e","https://git.kernel.org/stable/c/491df93b10d76aebaf6aa4bb05a6ba897f4fccfb","https://git.kernel.org/stable/c/cc2ee642ebeac8699b671ddb6d5955a785e5ff43","https://git.kernel.org/stable/c/68b786691ce24c5c94e28811db243e573c50f9c1","https://git.kernel.org/stable/c/6fbe76eb2796d2aee45cc6a2dd16e85d3cc96304","https://git.kernel.org/stable/c/ba6cb7c0868a412c2eb68e8efd5aa38bfb258a14"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98190.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98190","state":"PUBLISHED","datePublished":"2026-10-06T08:44:31.520Z","dateUpdated":"2026-10-19T09:15:21.647Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.323Z"},"containers":{"cna":{"title":"wifi: wilc1000: fix out-of-bounds read in P2P public action frames","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"e98ad9f4c59f2e836f8d971b57763a4277680422","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"f0c46f8111a479b97b8ab17747c528cade6257f1","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"a5b827dad8a3037cef04d0240d1c2acb1557101e","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"491df93b10d76aebaf6aa4bb05a6ba897f4fccfb","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"cc2ee642ebeac8699b671ddb6d5955a785e5ff43","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"68b786691ce24c5c94e28811db243e573c50f9c1","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"6fbe76eb2796d2aee45cc6a2dd16e85d3cc96304","versionType":"git"},{"version":"4fb8b5aa2a1126783ae00bae544d6f3c519408ef","status":"affected","lessThan":"ba6cb7c0868a412c2eb68e8efd5aa38bfb258a14","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/microchip/wilc1000/cfg80211.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/microchip/wilc1000/cfg80211.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e98ad9f4c59f2e836f8d971b57763a4277680422"},{"url":"https://git.kernel.org/stable/c/f0c46f8111a479b97b8ab17747c528cade6257f1"},{"url":"https://git.kernel.org/stable/c/a5b827dad8a3037cef04d0240d1c2acb1557101e"},{"url":"https://git.kernel.org/stable/c/491df93b10d76aebaf6aa4bb05a6ba897f4fccfb"},{"url":"https://git.kernel.org/stable/c/cc2ee642ebeac8699b671ddb6d5955a785e5ff43"},{"url":"https://git.kernel.org/stable/c/68b786691ce24c5c94e28811db243e573c50f9c1"},{"url":"https://git.kernel.org/stable/c/6fbe76eb2796d2aee45cc6a2dd16e85d3cc96304"},{"url":"https://git.kernel.org/stable/c/ba6cb7c0868a412c2eb68e8efd5aa38bfb258a14"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:15:21.647Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}