170 lines
7.9 KiB
JSON
170 lines
7.9 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-2026-90389",
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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": "2026-09-11T19:38:34.810Z",
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"datePublished": "2026-09-17T16:09:23.767Z",
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"dateUpdated": "2026-10-19T09:02:53.050Z"
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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": "2026-10-19T09:02:53.050Z"
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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\nmd: scope memalloc_noio to allocation critical sections\n\nStoring a memalloc_noio_save() token in mddev->noio_flags lets one task\nsave the token and another task restore it. With concurrent suspend sysfs\nwrites, task A can enter PF_MEMALLOC_NOIO, return to userspace still in\nthat scope, and later task B can restore A's saved token.\n\nAvoid tying the token lifetime to mddev. Keep mddev_suspend() and\nmddev_resume() only responsible for array suspension, and enter\nPF_MEMALLOC_NOIO only in the MD paths that allocate memory after the array\nhas been suspended. Restore the token before resuming the array.\n\nA reproducer repeatedly writes suspend_lo and suspend_hi from concurrent\nworkers and checks each worker's /proc/self/stat flags before and after the\nsysfs write."
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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/md/md-bitmap.c",
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"drivers/md/md.c",
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"drivers/md/md.h",
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"drivers/md/raid5.c"
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],
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"versions": [
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{
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"version": "78f57ef9d50a75326da73d352d7c27828495229a",
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"lessThan": "72ebfdf507ede7d7f2b7ca0a5634811a0e4bf045",
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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": "78f57ef9d50a75326da73d352d7c27828495229a",
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"lessThan": "28fdea874f68cac6c36651b1fc7272fd2199c48d",
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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": "78f57ef9d50a75326da73d352d7c27828495229a",
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"lessThan": "a58923756b0f8e71032070c23ae0b167e46731da",
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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": "78f57ef9d50a75326da73d352d7c27828495229a",
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"lessThan": "bace2010dd7ac07bc980575afb135c406730a7fe",
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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/md/md-bitmap.c",
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"drivers/md/md.c",
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"drivers/md/md.h",
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"drivers/md/raid5.c"
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],
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"versions": [
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{
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"version": "5.8",
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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": "5.8",
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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": "6.12.110",
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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": "6.18.52",
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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": "5.8",
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"versionEndExcluding": "6.12.110"
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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": "5.8",
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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": "5.8",
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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": "5.8",
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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/72ebfdf507ede7d7f2b7ca0a5634811a0e4bf045"
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},
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{
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"url": "https://git.kernel.org/stable/c/28fdea874f68cac6c36651b1fc7272fd2199c48d"
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},
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{
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"url": "https://git.kernel.org/stable/c/a58923756b0f8e71032070c23ae0b167e46731da"
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},
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{
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"url": "https://git.kernel.org/stable/c/bace2010dd7ac07bc980575afb135c406730a7fe"
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}
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],
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"title": "md: scope memalloc_noio to allocation critical sections",
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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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} |