206 lines
9.9 KiB
JSON
206 lines
9.9 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-98238",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-25T10:25:14.329Z",
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"datePublished": "2026-10-06T08:45:09.953Z",
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"dateUpdated": "2026-10-19T09:16:09.924Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T09:16:09.924Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: t7xx: validate the netif index in t7xx_ccmni_recv_skb()\n\nThe netif index carried in the DPMAIF PIT header is five bits wide,\nbut ccmni_inst[] only has room for NIC_DEV_MAX (21) entries.\nt7xx_ccmni_recv_skb() indexes the array without a bounds check, so\nindexes 21 to 31 read past it. The out-of-bounds value lands in the\ncallback table that follows the array, which is never NULL, so the\nexisting !ccmni check does not catch it and the driver dereferences\nwhatever sits there as a struct t7xx_ccmni.\n\nDrop the skb when the index is out of range.\n\n\nVerified in a QEMU guest with a fault injector setting the netif\nindex to 25: the unpatched driver reads a value past ccmni_inst[],\nwhich lands in the callback table, and dereferences it far enough to\nqueue the skb. With this check the packet is dropped. Well-formed\ntraffic on index 0 is unaffected.\n\nChanges in v2: none."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/wwan/t7xx/t7xx_netdev.c"
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],
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"versions": [
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{
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"version": "05d19bf500f8281f574713479b04679fa226d0a3",
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"lessThan": "7c2fe308bda5a7e6222d7f0c3c311991372baab4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "05d19bf500f8281f574713479b04679fa226d0a3",
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"lessThan": "fba45070e25abdae08bcaebfadeef050dc39e208",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "05d19bf500f8281f574713479b04679fa226d0a3",
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"lessThan": "e1b0609b1a40da03e385be290853a604eb4c3fb9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "05d19bf500f8281f574713479b04679fa226d0a3",
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"lessThan": "9dbf13de4edff6fbc1f7ad9c4040326b6ed599ad",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "05d19bf500f8281f574713479b04679fa226d0a3",
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"lessThan": "d28aa2de9654e8024922775520a2665e00c04ad5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "05d19bf500f8281f574713479b04679fa226d0a3",
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"lessThan": "c7ead9704249d57d4693a04697e3bbd285138fa9",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/wwan/t7xx/t7xx_netdev.c"
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],
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"versions": [
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{
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"version": "5.19",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.19",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.189",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.158",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.112",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.54",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.8",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.19",
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"versionEndExcluding": "6.1.189"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.19",
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"versionEndExcluding": "6.6.158"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.19",
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"versionEndExcluding": "6.12.112"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.19",
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"versionEndExcluding": "6.18.54"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.19",
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"versionEndExcluding": "7.2.8"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.19",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/7c2fe308bda5a7e6222d7f0c3c311991372baab4"
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},
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{
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"url": "https://git.kernel.org/stable/c/fba45070e25abdae08bcaebfadeef050dc39e208"
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},
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{
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"url": "https://git.kernel.org/stable/c/e1b0609b1a40da03e385be290853a604eb4c3fb9"
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},
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{
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"url": "https://git.kernel.org/stable/c/9dbf13de4edff6fbc1f7ad9c4040326b6ed599ad"
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},
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{
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"url": "https://git.kernel.org/stable/c/d28aa2de9654e8024922775520a2665e00c04ad5"
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},
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{
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"url": "https://git.kernel.org/stable/c/c7ead9704249d57d4693a04697e3bbd285138fa9"
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}
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],
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"title": "net: wwan: t7xx: validate the netif index in t7xx_ccmni_recv_skb()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |