126 lines
5.6 KiB
JSON
126 lines
5.6 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-2026-80642",
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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": "2026-08-26T14:34:25.778Z",
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"datePublished": "2026-08-28T06:48:53.841Z",
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"dateUpdated": "2026-08-28T06:48:53.841Z"
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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": "2026-08-28T06:48:53.841Z"
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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\nliveupdate: Reference count incoming FLB data\n\nIncrement the incoming FLB refcount in liveupdate_flb_get_incoming() so\nthat the FLB structure cannot be freed while the caller is actively using\nit. Add an additional liveupdate_flb_put_incoming() function so the\ncaller can explicitly indicate when it is done using the FLB data.\n\nDuring a Live Update, a subsystem might need to hold onto the incoming\nFile-Lifecycle-Bound (FLB) data for an extended period, such as during\ndevice enumeration. Incrementing the reference count guarantees that the\ndata remains valid and accessible until the subsystem releases it,\npreventing future use-after-free bugs."
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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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"include/linux/liveupdate.h",
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"kernel/liveupdate/luo_flb.c",
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"lib/tests/liveupdate.c"
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],
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"versions": [
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{
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"version": "cab056f2aae7250af50e503b81a80dfc567a1acd",
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"lessThan": "725ada0273a0f48a67fd59cc518d7f8055fe3d5c",
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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": "cab056f2aae7250af50e503b81a80dfc567a1acd",
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"lessThan": "d8e47bd066d7e626f9f45d416182d585b7e18b9b",
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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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"include/linux/liveupdate.h",
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"kernel/liveupdate/luo_flb.c",
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"lib/tests/liveupdate.c"
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],
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"versions": [
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{
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"version": "7.0",
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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": "7.0",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "7.0",
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"versionEndExcluding": "7.1.5"
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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": "7.0",
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"versionEndExcluding": "7.2"
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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/725ada0273a0f48a67fd59cc518d7f8055fe3d5c"
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},
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{
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"url": "https://git.kernel.org/stable/c/d8e47bd066d7e626f9f45d416182d585b7e18b9b"
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}
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],
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"title": "liveupdate: Reference count incoming FLB data",
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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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} |