164 lines
7.9 KiB
JSON
164 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-2022-49675",
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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": "2025-02-26T02:21:30.438Z",
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"datePublished": "2025-02-26T02:24:07.395Z",
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"dateUpdated": "2026-05-11T19:04:31.296Z"
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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": "2026-05-11T19:04:31.296Z"
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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\ntick/nohz: unexport __init-annotated tick_nohz_full_setup()\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 had been broken for a decade.\n\nCommit 28438794aba4 (\"modpost: fix section mismatch check for exported\ninit/exit sections\") fixed it so modpost started to warn it again, then\nthis showed up:\n\n MODPOST vmlinux.symvers\n WARNING: modpost: vmlinux.o(___ksymtab_gpl+tick_nohz_full_setup+0x0): Section mismatch in reference from the variable __ksymtab_tick_nohz_full_setup to the function .init.text:tick_nohz_full_setup()\n The symbol tick_nohz_full_setup is exported and annotated __init\n Fix this by removing the __init annotation of tick_nohz_full_setup or drop the export.\n\nDrop the export because tick_nohz_full_setup() is only called from the\nbuilt-in code in kernel/sched/isolation.c."
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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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"kernel/time/tick-sched.c"
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],
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"versions": [
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{
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"version": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
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"lessThan": "c4ff3ffe0138234774602152fe67e3a898c615c6",
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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": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
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"lessThan": "f4a80ec8c51d68be4b7a7830c510f75080c5e417",
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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": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
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"lessThan": "ea32b27e2f8c58c92bff5ecba7fcf64b97707089",
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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": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
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"lessThan": "2390095113e98fc52fffe35c5206d30d9efe3f78",
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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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"kernel/time/tick-sched.c"
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],
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"versions": [
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{
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"version": "5.5",
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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": "5.5",
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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": "5.10.128",
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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": "5.15.52",
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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": "5.18.9",
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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": "5.5",
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"versionEndExcluding": "5.10.128"
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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": "5.5",
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"versionEndExcluding": "5.15.52"
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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": "5.5",
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"versionEndExcluding": "5.18.9"
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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": "5.5",
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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/c4ff3ffe0138234774602152fe67e3a898c615c6"
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},
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{
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"url": "https://git.kernel.org/stable/c/f4a80ec8c51d68be4b7a7830c510f75080c5e417"
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},
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{
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"url": "https://git.kernel.org/stable/c/ea32b27e2f8c58c92bff5ecba7fcf64b97707089"
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},
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{
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"url": "https://git.kernel.org/stable/c/2390095113e98fc52fffe35c5206d30d9efe3f78"
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}
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],
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"title": "tick/nohz: unexport __init-annotated tick_nohz_full_setup()",
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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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} |