143 lines
6.4 KiB
JSON
143 lines
6.4 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-2026-93078",
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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": "2026-09-17T15:57:05.661Z",
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"datePublished": "2026-09-17T16:10:59.686Z",
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"dateUpdated": "2026-10-19T09:05:14.083Z"
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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": "2026-10-19T09:05:14.083Z"
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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\ncxl/features: Reject Set Features output buffer smaller than the header\n\ncxlctl_set_feature() sizes its output buffer from the user's\nfwctl_rpc.out_len but never checks it is large enough to hold even the\nfwctl_rpc_cxl_out header. With out_len == 0 , kvzalloc() returns\nZERO_SIZE_PTR, which passes the !rpc_out check, the subsequent\nrpc_out->size = 0 then writes through the poison pointer.\n\nReject requests whose output buffer can't hold the response header,\nbefore allocating. The Set Feature reply carries no payload, so the\nheader is all that is required."
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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/cxl/core/features.c"
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],
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"versions": [
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{
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"version": "eb5dfcb9e36d0e46089fec777d911313c1876fa3",
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"lessThan": "1281dc84c81577b51e2b61c24617c9f44b2cdb99",
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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": "eb5dfcb9e36d0e46089fec777d911313c1876fa3",
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"lessThan": "16b7c99eff030c6ea11ca24efa4b9f989cc74093",
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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": "eb5dfcb9e36d0e46089fec777d911313c1876fa3",
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"lessThan": "cde18d6c1d913a67ab0afd3d9475ece4be79da50",
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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/cxl/core/features.c"
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],
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"versions": [
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{
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"version": "6.15",
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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": "6.15",
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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": "6.18.52",
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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": "7.2.6",
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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": "6.15",
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"versionEndExcluding": "6.18.52"
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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": "6.15",
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"versionEndExcluding": "7.2.6"
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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": "6.15",
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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/1281dc84c81577b51e2b61c24617c9f44b2cdb99"
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},
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{
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"url": "https://git.kernel.org/stable/c/16b7c99eff030c6ea11ca24efa4b9f989cc74093"
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},
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{
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"url": "https://git.kernel.org/stable/c/cde18d6c1d913a67ab0afd3d9475ece4be79da50"
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}
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],
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"title": "cxl/features: Reject Set Features output buffer smaller than the header",
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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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} |