185 lines
8.7 KiB
JSON
185 lines
8.7 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-2022-49726",
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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": "2025-02-26T02:21:30.448Z",
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"datePublished": "2025-02-26T02:24:38.003Z",
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"dateUpdated": "2026-05-11T19:05:39.715Z"
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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": "2026-05-11T19:05:39.715Z"
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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\nclocksource: hyper-v: unexport __init-annotated hv_init_clocksource()\n\nEXPORT_SYMBOL and __init is a bad combination because the .init.text\nsection is freed up after the initialization. Hence, modules cannot\nuse symbols annotated __init. The access to a freed symbol may end up\nwith kernel panic.\n\nmodpost used to detect it, but it has been broken for a decade.\n\nRecently, I fixed modpost so it started to warn it again, then this\nshowed up in linux-next builds.\n\nThere are two ways to fix it:\n\n - Remove __init\n - Remove EXPORT_SYMBOL\n\nI chose the latter for this case because the only in-tree call-site,\narch/x86/kernel/cpu/mshyperv.c is never compiled as modular.\n(CONFIG_HYPERVISOR_GUEST is boolean)"
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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/clocksource/hyperv_timer.c"
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],
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"versions": [
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{
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"version": "dd2cb348613b44f9d948b068775e159aad298599",
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"lessThan": "cff3a7ce6e81418b6e8bac941779bbf5d342d626",
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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": "dd2cb348613b44f9d948b068775e159aad298599",
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"lessThan": "db965e2757d95f695e606856418cd84003dd036d",
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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": "dd2cb348613b44f9d948b068775e159aad298599",
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"lessThan": "0414eab7c78f3518143d383e448d44fc573ac6d2",
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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": "dd2cb348613b44f9d948b068775e159aad298599",
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"lessThan": "937fcbb55a1e48a6422e87e8f49422c92265f102",
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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": "dd2cb348613b44f9d948b068775e159aad298599",
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"lessThan": "245b993d8f6c4e25f19191edfbd8080b645e12b1",
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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/clocksource/hyperv_timer.c"
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],
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"versions": [
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{
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"version": "5.3",
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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": "5.3",
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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": "5.4.200",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.124",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.49",
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"lessThanOrEqual": "5.15.*",
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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": "5.18.6",
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"lessThanOrEqual": "5.18.*",
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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": "5.19",
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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": "5.3",
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"versionEndExcluding": "5.4.200"
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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": "5.3",
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"versionEndExcluding": "5.10.124"
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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": "5.3",
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"versionEndExcluding": "5.15.49"
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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": "5.3",
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"versionEndExcluding": "5.18.6"
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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": "5.3",
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"versionEndExcluding": "5.19"
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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/cff3a7ce6e81418b6e8bac941779bbf5d342d626"
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},
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{
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"url": "https://git.kernel.org/stable/c/db965e2757d95f695e606856418cd84003dd036d"
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},
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{
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"url": "https://git.kernel.org/stable/c/0414eab7c78f3518143d383e448d44fc573ac6d2"
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},
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{
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"url": "https://git.kernel.org/stable/c/937fcbb55a1e48a6422e87e8f49422c92265f102"
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},
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{
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"url": "https://git.kernel.org/stable/c/245b993d8f6c4e25f19191edfbd8080b645e12b1"
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}
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],
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"title": "clocksource: hyper-v: unexport __init-annotated hv_init_clocksource()",
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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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} |