CVE-2026-74488

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74488", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.905Z", "datePublished": "2026-08-15T12:27:18.867Z", "dateUpdated": "2026-10-16T19:05:49.470Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:37:43.361Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: use the subframe length when parsing A-MSDU TDLS frames\n\nmwifiex_11n_dispatch_amsdu_pkt() splits an A-MSDU with\nieee80211_amsdu_to_8023s() and walks the resulting subframes. For each\nsubframe it passes the subframe data pointer to\nmwifiex_process_tdls_action_frame(), but pairs it with skb->len, the\nlength of the A-MSDU parent, instead of rx_skb->len:\n\n\trx_skb = __skb_dequeue(&list);\n\trx_hdr = (struct rx_packet_hdr *)rx_skb->data;\n\tif (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&\n\t ntohs(rx_hdr->eth803_hdr.h_proto) == ETH_P_TDLS) {\n\t\tmwifiex_process_tdls_action_frame(priv, (u8 *)rx_hdr,\n\t\t\t\t\t\t skb->len);\n\t}\n\nThe parent is not a valid description of that buffer, and may not be\nvalid memory at all. ieee80211_amsdu_to_8023s() ends with\n\n\tif (!reuse_skb)\n\t\tdev_kfree_skb(skb);\n\nand it only sets reuse_skb when the parent is linear, is not a\nhead_frag, and is being consumed as the *last* subframe. So when the\nparent does not qualify for reuse it has already been freed, and the\nread of skb->len is a use-after-free. When it is reused, skb->len is\nthe length of the last subframe, applied to every earlier subframe,\nwhich over-states the buffer whenever an earlier subframe is shorter.\n\nThe callee cannot absorb a wrong length, because it derives its own\nceiling from the value it is given. Each frame type computes\n\n\ties_len = len - sizeof(struct ethhdr) - TDLS_*_FIX_LEN;\n\nand the element walk is then bounded entirely against that ceiling,\n\n\tfor (end = pos + ies_len; pos + 1 < end; pos += 2 + pos[1]) {\n\t\tu8 ie_len = pos[1];\n\n\t\tif (pos + 2 + ie_len > end)\n\t\t\tbreak;\n\nso a too-large len moves end past the end of the subframe and the walk\nreads and copies beyond it. The A-MSDU layout is chosen by the sender,\nwhich makes the difference between the last subframe and a shorter\nearlier one remotely selectable. Reaching this requires TDLS support in\nfirmware and the TDLS ethertype on the subframe.\n\nThe other caller, mwifiex_process_rx_packet(), is correct: it passes a\npointer and a length that describe the same region of the RX buffer.\n\nPass rx_skb->len, the length of the subframe actually being parsed."}], "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 bug is reached when the mwifiex driver processes attacker-supplied A-MSDU TDLS frames received over WiFi from a nearby peer, AP, or injector on the same wireless segment, which is an adjacent RF attack vector rather than remote Internet or local syscall access.\nAC:L - Once TDLS-capable mwifiex firmware receives an A-MSDU, the attacker fully controls subframe sizes and TDLS content to trigger either the skb use-after-free or the overstated-length out-of-bounds parse reliably without depending on uncontrollable timing or memory layout.\nPR:N - Exploitation requires only the ability to deliver crafted 802.11 data frames to the victim radio; it does not require any local account, capability, or root access on the Linux host and is not gated by user-namespace privilege boundaries.\nUI:N - No victim user action beyond normal wireless operation is required; the driver parses malicious TDLS subframes automatically during receive and A-MSDU decomposition before forwarding traffic to the network stack.\nS:U - Impact is confined to kernel memory corruption and driver state within the host kernel security authority; it does not by itself cross a VM, container, or IOMMU boundary to affect a separate security domain.\nC:H - The skb use-after-free reads freed sk_buff metadata and the inflated length drives an out-of-bounds IE walk that reads kernel memory beyond the subframe, including attacker-positioned bytes from subsequent A-MSDU subframes, enabling substantial information disclosure.\nI:H - The same out-of-bounds parse copies attacker-controlled IE data from beyond the subframe into heap-allocated sta_node/tdls_cap structures via memcpy, providing a memory-corruption primitive that can be developed into arbitrary kernel write or code execution.\nA:H - Reading skb->len after the parent A-MSDU skb may already be freed can immediately fault or corrupt memory, and the out-of-bounds TDLS element parsing can provoke kernel oopses or panics even when full exploitation is not attempted."}]}], "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/11n_rxreorder.c"], "versions": [{"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "707664027bb9307f7268eda403af7c4ccd9b8644", "status": "affected", "versionType": "git"}, {"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "3b02275833a0d3e6583627995d614fa99bdf364f", "status": "affected", "versionType": "git"}, {"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "a1f0f7dc7eb15754e6931b433edb7beb754c996a", "status": "affected", "versionType": "git"}, {"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "25e5a3fe4f15e30f74eca42cbf3bcc3a3fbeda79", "status": "affected", "versionType": "git"}, {"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "ece2ebb34247d573142617dfc534a9dc11ba59be", "status": "affected", "versionType": "git"}, {"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "c9dcfe6b8b71369e1d732e2ff622c3696a2f032c", "status": "affected", "versionType": "git"}, {"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "5a21ab03829cb6d2682c127f22e2b9cd63b4393f", "status": "affected", "versionType": "git"}, {"version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "99a948382af8a225e2d5e54a7052158cd6281cc6", "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/11n_rxreorder.c"], "versions": [{"version": "4.5", "status": "affected"}, {"version": "0", "lessThan": "4.5", "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": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "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": "4.5", "versionEndExcluding": "5.10.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/707664027bb9307f7268eda403af7c4ccd9b8644"}, {"url": "https://git.kernel.org/stable/c/3b02275833a0d3e6583627995d614fa99bdf364f"}, {"url": "https://git.kernel.org/stable/c/a1f0f7dc7eb15754e6931b433edb7beb754c996a"}, {"url": "https://git.kernel.org/stable/c/25e5a3fe4f15e30f74eca42cbf3bcc3a3fbeda79"}, {"url": "https://git.kernel.org/stable/c/ece2ebb34247d573142617dfc534a9dc11ba59be"}, {"url": "https://git.kernel.org/stable/c/c9dcfe6b8b71369e1d732e2ff622c3696a2f032c"}, {"url": "https://git.kernel.org/stable/c/5a21ab03829cb6d2682c127f22e2b9cd63b4393f"}, {"url": "https://git.kernel.org/stable/c/99a948382af8a225e2d5e54a7052158cd6281cc6"}], "title": "wifi: mwifiex: use the subframe length when parsing A-MSDU TDLS frames", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-74488", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:57:58.234804Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:05:49.470Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-74488", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:57:58.234804Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T18:57:59.174Z"}}], "cna": {"title": "wifi: mwifiex: use the subframe length when parsing A-MSDU TDLS frames", "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 bug is reached when the mwifiex driver processes attacker-supplied A-MSDU TDLS frames received over WiFi from a nearby peer, AP, or injector on the same wireless segment, which is an adjacent RF attack vector rather than remote Internet or local syscall access.\nAC:L - Once TDLS-capable mwifiex firmware receives an A-MSDU, the attacker fully controls subframe sizes and TDLS content to trigger either the skb use-after-free or the overstated-length out-of-bounds parse reliably without depending on uncontrollable timing or memory layout.\nPR:N - Exploitation requires only the ability to deliver crafted 802.11 data frames to the victim radio; it does not require any local account, capability, or root access on the Linux host and is not gated by user-namespace privilege boundaries.\nUI:N - No victim user action beyond normal wireless operation is required; the driver parses malicious TDLS subframes automatically during receive and A-MSDU decomposition before forwarding traffic to the network stack.\nS:U - Impact is confined to kernel memory corruption and driver state within the host kernel security authority; it does not by itself cross a VM, container, or IOMMU boundary to affect a separate security domain.\nC:H - The skb use-after-free reads freed sk_buff metadata and the inflated length drives an out-of-bounds IE walk that reads kernel memory beyond the subframe, including attacker-positioned bytes from subsequent A-MSDU subframes, enabling substantial information disclosure.\nI:H - The same out-of-bounds parse copies attacker-controlled IE data from beyond the subframe into heap-allocated sta_node/tdls_cap structures via memcpy, providing a memory-corruption primitive that can be developed into arbitrary kernel write or code execution.\nA:H - Reading skb->len after the parent A-MSDU skb may already be freed can immediately fault or corrupt memory, and the out-of-bounds TDLS element parsing can provoke kernel oopses or panics even when full exploitation is not attempted."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "707664027bb9307f7268eda403af7c4ccd9b8644", "versionType": "git"}, {"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "3b02275833a0d3e6583627995d614fa99bdf364f", "versionType": "git"}, {"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "a1f0f7dc7eb15754e6931b433edb7beb754c996a", "versionType": "git"}, {"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "25e5a3fe4f15e30f74eca42cbf3bcc3a3fbeda79", "versionType": "git"}, {"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "ece2ebb34247d573142617dfc534a9dc11ba59be", "versionType": "git"}, {"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "c9dcfe6b8b71369e1d732e2ff622c3696a2f032c", "versionType": "git"}, {"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "5a21ab03829cb6d2682c127f22e2b9cd63b4393f", "versionType": "git"}, {"status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "lessThan": "99a948382af8a225e2d5e54a7052158cd6281cc6", "versionType": "git"}], "programFiles": ["drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.5"}, {"status": "unaffected", "version": "0", "lessThan": "4.5", "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": "6.6.151", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.103", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.44", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.8", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/707664027bb9307f7268eda403af7c4ccd9b8644"}, {"url": "https://git.kernel.org/stable/c/3b02275833a0d3e6583627995d614fa99bdf364f"}, {"url": "https://git.kernel.org/stable/c/a1f0f7dc7eb15754e6931b433edb7beb754c996a"}, {"url": "https://git.kernel.org/stable/c/25e5a3fe4f15e30f74eca42cbf3bcc3a3fbeda79"}, {"url": "https://git.kernel.org/stable/c/ece2ebb34247d573142617dfc534a9dc11ba59be"}, {"url": "https://git.kernel.org/stable/c/c9dcfe6b8b71369e1d732e2ff622c3696a2f032c"}, {"url": "https://git.kernel.org/stable/c/5a21ab03829cb6d2682c127f22e2b9cd63b4393f"}, {"url": "https://git.kernel.org/stable/c/99a948382af8a225e2d5e54a7052158cd6281cc6"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: use the subframe length when parsing A-MSDU TDLS frames\n\nmwifiex_11n_dispatch_amsdu_pkt() splits an A-MSDU with\nieee80211_amsdu_to_8023s() and walks the resulting subframes. For each\nsubframe it passes the subframe data pointer to\nmwifiex_process_tdls_action_frame(), but pairs it with skb->len, the\nlength of the A-MSDU parent, instead of rx_skb->len:\n\n\trx_skb = __skb_dequeue(&list);\n\trx_hdr = (struct rx_packet_hdr *)rx_skb->data;\n\tif (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&\n\t ntohs(rx_hdr->eth803_hdr.h_proto) == ETH_P_TDLS) {\n\t\tmwifiex_process_tdls_action_frame(priv, (u8 *)rx_hdr,\n\t\t\t\t\t\t skb->len);\n\t}\n\nThe parent is not a valid description of that buffer, and may not be\nvalid memory at all. ieee80211_amsdu_to_8023s() ends with\n\n\tif (!reuse_skb)\n\t\tdev_kfree_skb(skb);\n\nand it only sets reuse_skb when the parent is linear, is not a\nhead_frag, and is being consumed as the *last* subframe. So when the\nparent does not qualify for reuse it has already been freed, and the\nread of skb->len is a use-after-free. When it is reused, skb->len is\nthe length of the last subframe, applied to every earlier subframe,\nwhich over-states the buffer whenever an earlier subframe is shorter.\n\nThe callee cannot absorb a wrong length, because it derives its own\nceiling from the value it is given. Each frame type computes\n\n\ties_len = len - sizeof(struct ethhdr) - TDLS_*_FIX_LEN;\n\nand the element walk is then bounded entirely against that ceiling,\n\n\tfor (end = pos + ies_len; pos + 1 < end; pos += 2 + pos[1]) {\n\t\tu8 ie_len = pos[1];\n\n\t\tif (pos + 2 + ie_len > end)\n\t\t\tbreak;\n\nso a too-large len moves end past the end of the subframe and the walk\nreads and copies beyond it. The A-MSDU layout is chosen by the sender,\nwhich makes the difference between the last subframe and a shorter\nearlier one remotely selectable. Reaching this requires TDLS support in\nfirmware and the TDLS ethertype on the subframe.\n\nThe other caller, mwifiex_process_rx_packet(), is correct: it passes a\npointer and a length that describe the same region of the RX buffer.\n\nPass rx_skb->len, the length of the subframe actually being parsed."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.265", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.216", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.183", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.151", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.103", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.44", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.8", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "4.5"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:37:43.361Z"}}}, "cveMetadata": {"cveId": "CVE-2026-74488", "state": "PUBLISHED", "dateUpdated": "2026-10-16T19:05:49.470Z", "dateReserved": "2026-08-15T05:44:03.905Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-15T12:27:18.867Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "707664027bb9307f7268eda403af7c4ccd9b8644", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}, {"lessThan": "3b02275833a0d3e6583627995d614fa99bdf364f", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}, {"lessThan": "a1f0f7dc7eb15754e6931b433edb7beb754c996a", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}, {"lessThan": "25e5a3fe4f15e30f74eca42cbf3bcc3a3fbeda79", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}, {"lessThan": "ece2ebb34247d573142617dfc534a9dc11ba59be", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}, {"lessThan": "c9dcfe6b8b71369e1d732e2ff622c3696a2f032c", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}, {"lessThan": "5a21ab03829cb6d2682c127f22e2b9cd63b4393f", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}, {"lessThan": "99a948382af8a225e2d5e54a7052158cd6281cc6", "status": "affected", "version": "776f742040ca5eb6242c60f29ac73d5752a5b621", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.5"}, {"lessThan": "4.5", "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": "6.6.151", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.103", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "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: use the subframe length when parsing A-MSDU TDLS frames\n\nmwifiex_11n_dispatch_amsdu_pkt() splits an A-MSDU with\nieee80211_amsdu_to_8023s() and walks the resulting subframes. For each\nsubframe it passes the subframe data pointer to\nmwifiex_process_tdls_action_frame(), but pairs it with skb->len, the\nlength of the A-MSDU parent, instead of rx_skb->len:\n\n\trx_skb = __skb_dequeue(&list);\n\trx_hdr = (struct rx_packet_hdr *)rx_skb->data;\n\tif (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&\n\t ntohs(rx_hdr->eth803_hdr.h_proto) == ETH_P_TDLS) {\n\t\tmwifiex_process_tdls_action_frame(priv, (u8 *)rx_hdr,\n\t\t\t\t\t\t skb->len);\n\t}\n\nThe parent is not a valid description of that buffer, and may not be\nvalid memory at all. ieee80211_amsdu_to_8023s() ends with\n\n\tif (!reuse_skb)\n\t\tdev_kfree_skb(skb);\n\nand it only sets reuse_skb when the parent is linear, is not a\nhead_frag, and is being consumed as the *last* subframe. So when the\nparent does not qualify for reuse it has already been freed, and the\nread of skb->len is a use-after-free. When it is reused, skb->len is\nthe length of the last subframe, applied to every earlier subframe,\nwhich over-states the buffer whenever an earlier subframe is shorter.\n\nThe callee cannot absorb a wrong length, because it derives its own\nceiling from the value it is given. Each frame type computes\n\n\ties_len = len - sizeof(struct ethhdr) - TDLS_*_FIX_LEN;\n\nand the element walk is then bounded entirely against that ceiling,\n\n\tfor (end = pos + ies_len; pos + 1 < end; pos += 2 + pos[1]) {\n\t\tu8 ie_len = pos[1];\n\n\t\tif (pos + 2 + ie_len > end)\n\t\t\tbreak;\n\nso a too-large len moves end past the end of the subframe and the walk\nreads and copies beyond it. The A-MSDU layout is chosen by the sender,\nwhich makes the difference between the last subframe and a shorter\nearlier one remotely selectable. Reaching this requires TDLS support in\nfirmware and the TDLS ethertype on the subframe.\n\nThe other caller, mwifiex_process_rx_packet(), is correct: it passes a\npointer and a length that describe the same region of the RX buffer.\n\nPass rx_skb->len, the length of the subframe actually being parsed."}], "id": "CVE-2026-74488", "lastModified": "2026-10-16T20:17:31.617", "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-2026-74488", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T18:57:58.234804Z", "version": "2.0.3"}}]}, "published": "2026-08-15T13:17:53.690", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/25e5a3fe4f15e30f74eca42cbf3bcc3a3fbeda79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3b02275833a0d3e6583627995d614fa99bdf364f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5a21ab03829cb6d2682c127f22e2b9cd63b4393f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/707664027bb9307f7268eda403af7c4ccd9b8644"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/99a948382af8a225e2d5e54a7052158cd6281cc6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a1f0f7dc7eb15754e6931b433edb7beb754c996a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c9dcfe6b8b71369e1d732e2ff622c3696a2f032c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ece2ebb34247d573142617dfc534a9dc11ba59be"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: mwifiex: use the subframe length when parsing A-MSDU TDLS frames", "id": "2517072", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517072"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mwifiex: use the subframe length when parsing A-MSDU TDLS frames\nmwifiex_11n_dispatch_amsdu_pkt() splits an A-MSDU with\nieee80211_amsdu_to_8023s() and walks the resulting subframes. For each\nsubframe it passes the subframe data pointer to\nmwifiex_process_tdls_action_frame(), but pairs it with skb->len, the\nlength of the A-MSDU parent, instead of rx_skb->len:\nrx_skb = __skb_dequeue(&list);\nrx_hdr = (struct rx_packet_hdr *)rx_skb->data;\nif (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&\nntohs(rx_hdr->eth803_hdr.h_proto) == ETH_P_TDLS) {\nmwifiex_process_tdls_action_frame(priv, (u8 *)rx_hdr,\nskb->len);\n}\nThe parent is not a valid description of that buffer, and may not be\nvalid memory at all. ieee80211_amsdu_to_8023s() ends with\nif (!reuse_skb)\ndev_kfree_skb(skb);\nand it only sets reuse_skb when the parent is linear, is not a\nhead_frag, and is being consumed as the *last* subframe. So when the\nparent does not qualify for reuse it has already been freed, and the\nread of skb->len is a use-after-free. When it is reused, skb->len is\nthe length of the last subframe, applied to every earlier subframe,\nwhich over-states the buffer whenever an earlier subframe is shorter.\nThe callee cannot absorb a wrong length, because it derives its own\nceiling from the value it is given. Each frame type computes\nies_len = len - sizeof(struct ethhdr) - TDLS_*_FIX_LEN;\nand the element walk is then bounded entirely against that ceiling,\nfor (end = pos + ies_len; pos + 1 < end; pos += 2 + pos[1]) {\nu8 ie_len = pos[1];\nif (pos + 2 + ie_len > end)\nbreak;\nso a too-large len moves end past the end of the subframe and the walk\nreads and copies beyond it. The A-MSDU layout is chosen by the sender,\nwhich makes the difference between the last subframe and a shorter\nearlier one remotely selectable. Reaching this requires TDLS support in\nfirmware and the TDLS ethertype on the subframe.\nThe other caller, mwifiex_process_rx_packet(), is correct: it passes a\npointer and a length that describe the same region of the RX buffer.\nPass rx_skb->len, the length of the subframe actually being parsed.", "A flaw was found in the Linux kernel's mwifiex Wi-Fi driver. When parsing Tunneled Direct Link Setup (TDLS) frames within an Aggregated MAC Service Data Unit (A-MSDU), the driver incorrectly uses the length of the parent frame instead of the subframe. This error can lead to a use-after-free vulnerability or an out-of-bounds read, allowing a remote attacker to cause memory corruption. This issue requires TDLS support in the firmware and specific TDLS frame types."], "name": "CVE-2026-74488", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74488\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74488\nhttps://lore.kernel.org/linux-cve-announce/2026081538-CVE-2026-74488-bf0e@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[776f742040ca5eb6242c60f29ac73d5752a5b621,25e5a3fe4f15e30f74eca42cbf3bcc3a3fbeda79)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[776f742040ca5eb6242c60f29ac73d5752a5b621,ece2ebb34247d573142617dfc534a9dc11ba59be)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[776f742040ca5eb6242c60f29ac73d5752a5b621,c9dcfe6b8b71369e1d732e2ff622c3696a2f032c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[776f742040ca5eb6242c60f29ac73d5752a5b621,5a21ab03829cb6d2682c127f22e2b9cd63b4393f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[776f742040ca5eb6242c60f29ac73d5752a5b621,99a948382af8a225e2d5e54a7052158cd6281cc6)"}}], "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": "4.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.151,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.8,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc6,*]"}}], "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": "2026-08-15T14:15:03.645606+00:00", "updated": "2026-08-21T20:45:03.859636+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}