CVE-2026-68326

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68326", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.382Z", "datePublished": "2026-08-10T12:03:02.372Z", "dateUpdated": "2026-10-19T21:09:04.965Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:33:21.015Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: bound uAP association event IEs to the event buffer\n\nmwifiex_process_uap_event() handles EVENT_UAP_STA_ASSOC by exposing the\n(re)association request IEs that the firmware copies into the event:\n\n\tsinfo->assoc_req_ies = &event->data[len];\n\tlen = (u8 *)sinfo->assoc_req_ies - (u8 *)&event->frame_control;\n\tsinfo->assoc_req_ies_len = le16_to_cpu(event->len) - (u16)len;\n\nevent->len is supplied by the device firmware and is never validated,\nand the subtraction is unchecked. assoc_req_ies points into\nadapter->event_body[MAX_EVENT_SIZE], a fixed-size array embedded in the\nkmalloc()'d struct mwifiex_adapter.\n\nOn the ap_11n_enabled path mwifiex_set_sta_ht_cap() walks these IEs with\ncfg80211_find_ie(), whose for_each_element() loop dereferences each\nelement header. A firmware-reported event->len larger than the bytes\nactually received makes assoc_req_ies_len describe IEs that extend past\nevent_body, so the walk reads out of the adapter slab object, a\nslab-out-of-bounds read (KASAN: slab-out-of-bounds in cfg80211_find_ie).\nAn event->len smaller than the header instead makes the int subtraction\nnegative, which wraps to a huge size_t when stored in assoc_req_ies_len.\nThe same length is handed to cfg80211_new_sta(), so a more modest\nover-claim can also copy stale event_body bytes into the\nNL80211_CMD_NEW_STATION notification.\n\nA malicious or malfunctioning mwifiex device (USB/SDIO/PCIe) can deliver\nsuch an event while the interface is in AP/uAP mode.\n\nValidate event->len before use: reject a length that underflows the\nheader or that would place the IEs outside the event_body[] buffer the\nevent was copied into. event->len here is struct mwifiex_assoc_event.len,\na payload field internal to this event, not the transport frame length,\nso it is validated in this handler rather than at the generic\nMWIFIEX_TYPE_EVENT receive path, which only sees the event cause and the\ntransport frame length. The bound is against event_body[MAX_EVENT_SIZE]\nrather than the actually-received length because the transports store the\nevent differently (USB and SDIO leave the 4-byte event header in\nevent_skb, PCIe strips it via skb_pull), whereas event_body is the single\nfixed buffer all of them copy the event into. This is the event-path\nanalogue of the receive-path bounds checks added in commit 119585281617\n(\"wifi: mwifiex: Fix OOB and integer underflow when rx packets\")."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - The event payload is the firmware's rendering of an over-the-air (re)association request received by the mwifiex uAP interface, with event->len being the TLV length covering that frame, so the triggering input comes from a station within 802.11 radio range. This matches the Adjacent treatment used for other frame/event-driven mwifiex defects (CVE-2024-46755, CVE-2023-53226).\nAC:L - No race or attacker-uncontrollable state is involved: the attacker simply sends a crafted/oversized (re)association request to the AP, and the handler parses the resulting EVENT_UAP_STA_ASSOC unconditionally. The only precondition, an mwifiex interface in AP/uAP mode with ap_11n_enabled, is the normal steady state for tethering, Chromebook SoftAP and embedded AP deployments.\nPR:N - EVENT_UAP_STA_ASSOC is generated at association time, before the WPA/EAPOL handshake, so the attacker needs no credentials on or accepted association with the target host. No host user account or capability is involved anywhere on the path.\nUI:N - The event is consumed autonomously by mwifiex_process_uap_event() in the driver's main work handler as soon as the firmware delivers it; no local user or administrator action is required beyond the AP already running.\nS:U - The out-of-bounds read, the underflowed length and the resulting corruption are all confined to the host kernel's own security authority within the mwifiex/cfg80211 code; no hypervisor, IOMMU or sandbox boundary is crossed.\nC:H - An over-claimed event->len makes assoc_req_ies_len describe memory past adapter->event_body[MAX_EVENT_SIZE], producing a slab-out-of-bounds read in cfg80211_find_ie() and, worse, causing nla_put() to copy up to tens of kilobytes of adjacent kernel slab memory into the NL80211_CMD_NEW_STATION notification delivered to userspace \u2014 an unbounded kernel heap disclosure, not a few stray bytes.\nI:H - An event->len below the header makes the int subtraction negative and wrap in size_t; that value reaches nla_put(), where nla_total_size() of the negative length evaluates to 0 and passes the tailroom check, so __nla_put()'s memcpy() runs with the negative length widened to a huge size_t \u2014 an unbounded out-of-bounds write past the netlink skb. Driver 11n/AMSDU state is also set from out-of-bounds data.\nA:H - The commit documents a reproducible KASAN slab-out-of-bounds in cfg80211_find_ie, and the underflow path drives a memcpy of a near-2^64 length that guarantees an immediate kernel panic. The condition can be re-triggered at will by repeating the association attempt."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/marvell/mwifiex/uap_event.c"], "versions": [{"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "a616616b938f7922a93e79bef16b4643c57c0922", "status": "affected", "versionType": "git"}, {"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "1ae00b6d9a6c82eb3de151d9b04ed59e06cc100f", "status": "affected", "versionType": "git"}, {"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "e7e93d3e8c240bdb70c41e79d169d74dfb442843", "status": "affected", "versionType": "git"}, {"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "a3f47d7c75ddad1a14621a309286f9fae3cba191", "status": "affected", "versionType": "git"}, {"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "ad26c75ae25749313248f06510ebe43b5bf4adcc", "status": "affected", "versionType": "git"}, {"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "d21464d93f8ba464dc3d7b4b31c6e0adcd9f659c", "status": "affected", "versionType": "git"}, {"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "b6766d7ea43edf5de9d5a572bc58b631d09efe4b", "status": "affected", "versionType": "git"}, {"version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "f0858bfc7d3cab411a447b88e3ef970e575032c9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/marvell/mwifiex/uap_event.c"], "versions": [{"version": "3.5", "status": "affected"}, {"version": "0", "lessThan": "3.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "5.10.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.5", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a616616b938f7922a93e79bef16b4643c57c0922"}, {"url": "https://git.kernel.org/stable/c/1ae00b6d9a6c82eb3de151d9b04ed59e06cc100f"}, {"url": "https://git.kernel.org/stable/c/e7e93d3e8c240bdb70c41e79d169d74dfb442843"}, {"url": "https://git.kernel.org/stable/c/a3f47d7c75ddad1a14621a309286f9fae3cba191"}, {"url": "https://git.kernel.org/stable/c/ad26c75ae25749313248f06510ebe43b5bf4adcc"}, {"url": "https://git.kernel.org/stable/c/d21464d93f8ba464dc3d7b4b31c6e0adcd9f659c"}, {"url": "https://git.kernel.org/stable/c/b6766d7ea43edf5de9d5a572bc58b631d09efe4b"}, {"url": "https://git.kernel.org/stable/c/f0858bfc7d3cab411a447b88e3ef970e575032c9"}], "title": "wifi: mwifiex: bound uAP association event IEs to the event buffer", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68326", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:47:09.561377Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T21:09:04.965Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68326", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:47:09.561377Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:47:10.215Z"}}], "cna": {"title": "wifi: mwifiex: bound uAP association event IEs to the event buffer", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:A - The event payload is the firmware's rendering of an over-the-air (re)association request received by the mwifiex uAP interface, with event->len being the TLV length covering that frame, so the triggering input comes from a station within 802.11 radio range. This matches the Adjacent treatment used for other frame/event-driven mwifiex defects (CVE-2024-46755, CVE-2023-53226).\nAC:L - No race or attacker-uncontrollable state is involved: the attacker simply sends a crafted/oversized (re)association request to the AP, and the handler parses the resulting EVENT_UAP_STA_ASSOC unconditionally. The only precondition, an mwifiex interface in AP/uAP mode with ap_11n_enabled, is the normal steady state for tethering, Chromebook SoftAP and embedded AP deployments.\nPR:N - EVENT_UAP_STA_ASSOC is generated at association time, before the WPA/EAPOL handshake, so the attacker needs no credentials on or accepted association with the target host. No host user account or capability is involved anywhere on the path.\nUI:N - The event is consumed autonomously by mwifiex_process_uap_event() in the driver's main work handler as soon as the firmware delivers it; no local user or administrator action is required beyond the AP already running.\nS:U - The out-of-bounds read, the underflowed length and the resulting corruption are all confined to the host kernel's own security authority within the mwifiex/cfg80211 code; no hypervisor, IOMMU or sandbox boundary is crossed.\nC:H - An over-claimed event->len makes assoc_req_ies_len describe memory past adapter->event_body[MAX_EVENT_SIZE], producing a slab-out-of-bounds read in cfg80211_find_ie() and, worse, causing nla_put() to copy up to tens of kilobytes of adjacent kernel slab memory into the NL80211_CMD_NEW_STATION notification delivered to userspace \u2014 an unbounded kernel heap disclosure, not a few stray bytes.\nI:H - An event->len below the header makes the int subtraction negative and wrap in size_t; that value reaches nla_put(), where nla_total_size() of the negative length evaluates to 0 and passes the tailroom check, so __nla_put()'s memcpy() runs with the negative length widened to a huge size_t \u2014 an unbounded out-of-bounds write past the netlink skb. Driver 11n/AMSDU state is also set from out-of-bounds data.\nA:H - The commit documents a reproducible KASAN slab-out-of-bounds in cfg80211_find_ie, and the underflow path drives a memcpy of a near-2^64 length that guarantees an immediate kernel panic. The condition can be re-triggered at will by repeating the association attempt."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "a616616b938f7922a93e79bef16b4643c57c0922", "versionType": "git"}, {"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "1ae00b6d9a6c82eb3de151d9b04ed59e06cc100f", "versionType": "git"}, {"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "e7e93d3e8c240bdb70c41e79d169d74dfb442843", "versionType": "git"}, {"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "a3f47d7c75ddad1a14621a309286f9fae3cba191", "versionType": "git"}, {"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "ad26c75ae25749313248f06510ebe43b5bf4adcc", "versionType": "git"}, {"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "d21464d93f8ba464dc3d7b4b31c6e0adcd9f659c", "versionType": "git"}, {"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "b6766d7ea43edf5de9d5a572bc58b631d09efe4b", "versionType": "git"}, {"status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "lessThan": "f0858bfc7d3cab411a447b88e3ef970e575032c9", "versionType": "git"}], "programFiles": ["drivers/net/wireless/marvell/mwifiex/uap_event.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.5"}, {"status": "unaffected", "version": "0", "lessThan": "3.5", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.265", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.216", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.183", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.148", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.101", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.42", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.6", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/wireless/marvell/mwifiex/uap_event.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/a616616b938f7922a93e79bef16b4643c57c0922"}, {"url": "https://git.kernel.org/stable/c/1ae00b6d9a6c82eb3de151d9b04ed59e06cc100f"}, {"url": "https://git.kernel.org/stable/c/e7e93d3e8c240bdb70c41e79d169d74dfb442843"}, {"url": "https://git.kernel.org/stable/c/a3f47d7c75ddad1a14621a309286f9fae3cba191"}, {"url": "https://git.kernel.org/stable/c/ad26c75ae25749313248f06510ebe43b5bf4adcc"}, {"url": "https://git.kernel.org/stable/c/d21464d93f8ba464dc3d7b4b31c6e0adcd9f659c"}, {"url": "https://git.kernel.org/stable/c/b6766d7ea43edf5de9d5a572bc58b631d09efe4b"}, {"url": "https://git.kernel.org/stable/c/f0858bfc7d3cab411a447b88e3ef970e575032c9"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: bound uAP association event IEs to the event buffer\n\nmwifiex_process_uap_event() handles EVENT_UAP_STA_ASSOC by exposing the\n(re)association request IEs that the firmware copies into the event:\n\n\tsinfo->assoc_req_ies = &event->data[len];\n\tlen = (u8 *)sinfo->assoc_req_ies - (u8 *)&event->frame_control;\n\tsinfo->assoc_req_ies_len = le16_to_cpu(event->len) - (u16)len;\n\nevent->len is supplied by the device firmware and is never validated,\nand the subtraction is unchecked. assoc_req_ies points into\nadapter->event_body[MAX_EVENT_SIZE], a fixed-size array embedded in the\nkmalloc()'d struct mwifiex_adapter.\n\nOn the ap_11n_enabled path mwifiex_set_sta_ht_cap() walks these IEs with\ncfg80211_find_ie(), whose for_each_element() loop dereferences each\nelement header. A firmware-reported event->len larger than the bytes\nactually received makes assoc_req_ies_len describe IEs that extend past\nevent_body, so the walk reads out of the adapter slab object, a\nslab-out-of-bounds read (KASAN: slab-out-of-bounds in cfg80211_find_ie).\nAn event->len smaller than the header instead makes the int subtraction\nnegative, which wraps to a huge size_t when stored in assoc_req_ies_len.\nThe same length is handed to cfg80211_new_sta(), so a more modest\nover-claim can also copy stale event_body bytes into the\nNL80211_CMD_NEW_STATION notification.\n\nA malicious or malfunctioning mwifiex device (USB/SDIO/PCIe) can deliver\nsuch an event while the interface is in AP/uAP mode.\n\nValidate event->len before use: reject a length that underflows the\nheader or that would place the IEs outside the event_body[] buffer the\nevent was copied into. event->len here is struct mwifiex_assoc_event.len,\na payload field internal to this event, not the transport frame length,\nso it is validated in this handler rather than at the generic\nMWIFIEX_TYPE_EVENT receive path, which only sees the event cause and the\ntransport frame length. The bound is against event_body[MAX_EVENT_SIZE]\nrather than the actually-received length because the transports store the\nevent differently (USB and SDIO leave the 4-byte event header in\nevent_skb, PCIe strips it via skb_pull), whereas event_body is the single\nfixed buffer all of them copy the event into. This is the event-path\nanalogue of the receive-path bounds checks added in commit 119585281617\n(\"wifi: mwifiex: Fix OOB and integer underflow when rx packets\")."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.265", "versionStartIncluding": "3.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.216", "versionStartIncluding": "3.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.183", "versionStartIncluding": "3.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.148", "versionStartIncluding": "3.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.101", "versionStartIncluding": "3.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "3.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.6", "versionStartIncluding": "3.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "3.5"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:33:21.015Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68326", "state": "PUBLISHED", "dateUpdated": "2026-10-19T21:09:04.965Z", "dateReserved": "2026-07-30T09:28:09.382Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-10T12:03:02.372Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/mwifiex/uap_event.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a616616b938f7922a93e79bef16b4643c57c0922", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}, {"lessThan": "1ae00b6d9a6c82eb3de151d9b04ed59e06cc100f", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}, {"lessThan": "e7e93d3e8c240bdb70c41e79d169d74dfb442843", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}, {"lessThan": "a3f47d7c75ddad1a14621a309286f9fae3cba191", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}, {"lessThan": "ad26c75ae25749313248f06510ebe43b5bf4adcc", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}, {"lessThan": "d21464d93f8ba464dc3d7b4b31c6e0adcd9f659c", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}, {"lessThan": "b6766d7ea43edf5de9d5a572bc58b631d09efe4b", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}, {"lessThan": "f0858bfc7d3cab411a447b88e3ef970e575032c9", "status": "affected", "version": "e568634ae7ac379661c90731d480e067929420a1", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/mwifiex/uap_event.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.5"}, {"lessThan": "3.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: bound uAP association event IEs to the event buffer\n\nmwifiex_process_uap_event() handles EVENT_UAP_STA_ASSOC by exposing the\n(re)association request IEs that the firmware copies into the event:\n\n\tsinfo->assoc_req_ies = &event->data[len];\n\tlen = (u8 *)sinfo->assoc_req_ies - (u8 *)&event->frame_control;\n\tsinfo->assoc_req_ies_len = le16_to_cpu(event->len) - (u16)len;\n\nevent->len is supplied by the device firmware and is never validated,\nand the subtraction is unchecked. assoc_req_ies points into\nadapter->event_body[MAX_EVENT_SIZE], a fixed-size array embedded in the\nkmalloc()'d struct mwifiex_adapter.\n\nOn the ap_11n_enabled path mwifiex_set_sta_ht_cap() walks these IEs with\ncfg80211_find_ie(), whose for_each_element() loop dereferences each\nelement header. A firmware-reported event->len larger than the bytes\nactually received makes assoc_req_ies_len describe IEs that extend past\nevent_body, so the walk reads out of the adapter slab object, a\nslab-out-of-bounds read (KASAN: slab-out-of-bounds in cfg80211_find_ie).\nAn event->len smaller than the header instead makes the int subtraction\nnegative, which wraps to a huge size_t when stored in assoc_req_ies_len.\nThe same length is handed to cfg80211_new_sta(), so a more modest\nover-claim can also copy stale event_body bytes into the\nNL80211_CMD_NEW_STATION notification.\n\nA malicious or malfunctioning mwifiex device (USB/SDIO/PCIe) can deliver\nsuch an event while the interface is in AP/uAP mode.\n\nValidate event->len before use: reject a length that underflows the\nheader or that would place the IEs outside the event_body[] buffer the\nevent was copied into. event->len here is struct mwifiex_assoc_event.len,\na payload field internal to this event, not the transport frame length,\nso it is validated in this handler rather than at the generic\nMWIFIEX_TYPE_EVENT receive path, which only sees the event cause and the\ntransport frame length. The bound is against event_body[MAX_EVENT_SIZE]\nrather than the actually-received length because the transports store the\nevent differently (USB and SDIO leave the 4-byte event header in\nevent_skb, PCIe strips it via skb_pull), whereas event_body is the single\nfixed buffer all of them copy the event into. This is the event-path\nanalogue of the receive-path bounds checks added in commit 119585281617\n(\"wifi: mwifiex: Fix OOB and integer underflow when rx packets\")."}], "id": "CVE-2026-68326", "lastModified": "2026-10-19T22:17:13.360", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68326", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:47:09.561377Z", "version": "2.0.3"}}]}, "published": "2026-08-10T13:20:22.783", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1ae00b6d9a6c82eb3de151d9b04ed59e06cc100f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a3f47d7c75ddad1a14621a309286f9fae3cba191"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a616616b938f7922a93e79bef16b4643c57c0922"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ad26c75ae25749313248f06510ebe43b5bf4adcc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b6766d7ea43edf5de9d5a572bc58b631d09efe4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d21464d93f8ba464dc3d7b4b31c6e0adcd9f659c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e7e93d3e8c240bdb70c41e79d169d74dfb442843"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f0858bfc7d3cab411a447b88e3ef970e575032c9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: wifi: mwifiex: bound uAP association event IEs to the event buffer", "id": "2513444", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513444"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mwifiex: bound uAP association event IEs to the event buffer\nmwifiex_process_uap_event() handles EVENT_UAP_STA_ASSOC by exposing the\n(re)association request IEs that the firmware copies into the event:\nsinfo->assoc_req_ies = &event->data[len];\nlen = (u8 *)sinfo->assoc_req_ies - (u8 *)&event->frame_control;\nsinfo->assoc_req_ies_len = le16_to_cpu(event->len) - (u16)len;\nevent->len is supplied by the device firmware and is never validated,\nand the subtraction is unchecked. assoc_req_ies points into\nadapter->event_body[MAX_EVENT_SIZE], a fixed-size array embedded in the\nkmalloc()'d struct mwifiex_adapter.\nOn the ap_11n_enabled path mwifiex_set_sta_ht_cap() walks these IEs with\ncfg80211_find_ie(), whose for_each_element() loop dereferences each\nelement header. A firmware-reported event->len larger than the bytes\nactually received makes assoc_req_ies_len describe IEs that extend past\nevent_body, so the walk reads out of the adapter slab object, a\nslab-out-of-bounds read (KASAN: slab-out-of-bounds in cfg80211_find_ie).\nAn event->len smaller than the header instead makes the int subtraction\nnegative, which wraps to a huge size_t when stored in assoc_req_ies_len.\nThe same length is handed to cfg80211_new_sta(), so a more modest\nover-claim can also copy stale event_body bytes into the\nNL80211_CMD_NEW_STATION notification.\nA malicious or malfunctioning mwifiex device (USB/SDIO/PCIe) can deliver\nsuch an event while the interface is in AP/uAP mode.\nValidate event->len before use: reject a length that underflows the\nheader or that would place the IEs outside the event_body[] buffer the\nevent was copied into. event->len here is struct mwifiex_assoc_event.len,\na payload field internal to this event, not the transport frame length,\nso it is validated in this handler rather than at the generic\nMWIFIEX_TYPE_EVENT receive path, which only sees the event cause and the\ntransport frame length. The bound is against event_body[MAX_EVENT_SIZE]\nrather than the actually-received length because the transports store the\nevent differently (USB and SDIO leave the 4-byte event header in\nevent_skb, PCIe strips it via skb_pull), whereas event_body is the single\nfixed buffer all of them copy the event into. This is the event-path\nanalogue of the receive-path bounds checks added in commit 119585281617\n(\"wifi: mwifiex: Fix OOB and integer underflow when rx packets\").", "A flaw was found in the Linux kernel's mwifiex Wi-Fi driver. A malicious or malfunctioning mwifiex device, operating in Access Point (AP) or micro-AP (uAP) mode, can provide a crafted event with an invalid length value. This unchecked length can lead to an out-of-bounds read or integer underflow, potentially disclosing sensitive information from the kernel's memory or copying stale data into network notifications."], "name": "CVE-2026-68326", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68326\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68326\nhttps://lore.kernel.org/linux-cve-announce/2026081034-CVE-2026-68326-5d46@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e568634ae7ac379661c90731d480e067929420a1,a3f47d7c75ddad1a14621a309286f9fae3cba191)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e568634ae7ac379661c90731d480e067929420a1,ad26c75ae25749313248f06510ebe43b5bf4adcc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e568634ae7ac379661c90731d480e067929420a1,d21464d93f8ba464dc3d7b4b31c6e0adcd9f659c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e568634ae7ac379661c90731d480e067929420a1,b6766d7ea43edf5de9d5a572bc58b631d09efe4b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e568634ae7ac379661c90731d480e067929420a1,f0858bfc7d3cab411a447b88e3ef970e575032c9)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T17:00:03.763414+00:00", "updated": "2026-08-14T00:45:17.208910+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}