{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74263", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.877Z", "datePublished": "2026-08-15T05:57:39.660Z", "dateUpdated": "2026-08-15T05:57:39.660Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:57:39.660Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: t7xx: check skb_clone in control TX\n\nt7xx_port_ctrl_tx() clones each skb fragment before passing it to the\nport transmit path. The clone is used immediately to set cloned->len, so\nan skb_clone() failure results in a NULL pointer dereference.\n\nCheck the clone before using it. If previous fragments were already\nqueued, preserve the driver's existing partial-write behavior by\nreturning the number of bytes submitted so far."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wwan/t7xx/t7xx_port_wwan.c"], "versions": [{"version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "lessThan": "7edd4db82f9429591de10be4c904c817f12ba029", "status": "affected", "versionType": "git"}, {"version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "lessThan": "112490467586146d323cb7230b1d72137e36900c", "status": "affected", "versionType": "git"}, {"version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "lessThan": "f7aebaee2961bfcb86f282202d3dbd9b69db1a7c", "status": "affected", "versionType": "git"}, {"version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "lessThan": "4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095", "status": "affected", "versionType": "git"}, {"version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "lessThan": "05f789fa90d95d5771230e78453cedff2486039d", "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/wwan/t7xx/t7xx_port_wwan.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.4", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7edd4db82f9429591de10be4c904c817f12ba029"}, {"url": "https://git.kernel.org/stable/c/112490467586146d323cb7230b1d72137e36900c"}, {"url": "https://git.kernel.org/stable/c/f7aebaee2961bfcb86f282202d3dbd9b69db1a7c"}, {"url": "https://git.kernel.org/stable/c/4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095"}, {"url": "https://git.kernel.org/stable/c/05f789fa90d95d5771230e78453cedff2486039d"}], "title": "net: wwan: t7xx: check skb_clone in control TX", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wwan/t7xx/t7xx_port_wwan.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "7edd4db82f9429591de10be4c904c817f12ba029", "status": "affected", "version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "versionType": "git"}, {"lessThan": "112490467586146d323cb7230b1d72137e36900c", "status": "affected", "version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "versionType": "git"}, {"lessThan": "f7aebaee2961bfcb86f282202d3dbd9b69db1a7c", "status": "affected", "version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "versionType": "git"}, {"lessThan": "4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095", "status": "affected", "version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "versionType": "git"}, {"lessThan": "05f789fa90d95d5771230e78453cedff2486039d", "status": "affected", "version": "36bd28c1cb0dbf48645cfe43159907fb3253b33a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wwan/t7xx/t7xx_port_wwan.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"lessThan": "6.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc1", "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\nnet: wwan: t7xx: check skb_clone in control TX\n\nt7xx_port_ctrl_tx() clones each skb fragment before passing it to the\nport transmit path. The clone is used immediately to set cloned->len, so\nan skb_clone() failure results in a NULL pointer dereference.\n\nCheck the clone before using it. If previous fragments were already\nqueued, preserve the driver's existing partial-write behavior by\nreturning the number of bytes submitted so far."}], "id": "CVE-2026-74263", "lastModified": "2026-08-15T06:22:25.570", "metrics": {}, "published": "2026-08-15T06:22:25.570", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/05f789fa90d95d5771230e78453cedff2486039d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/112490467586146d323cb7230b1d72137e36900c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7edd4db82f9429591de10be4c904c817f12ba029"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f7aebaee2961bfcb86f282202d3dbd9b69db1a7c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}