{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47567","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-24T15:11:00.728Z","datePublished":"2024-05-24T15:12:54.081Z","dateUpdated":"2025-05-04T12:41:44.062Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T12:41:44.062Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/32: Fix hardlockup on vmap stack overflow\n\nSince the commit c118c7303ad5 (\"powerpc/32: Fix vmap stack - Do not\nactivate MMU before reading task struct\") a vmap stack overflow\nresults in a hard lockup. This is because emergency_ctx is still\naddressed with its virtual address allthough data MMU is not active\nanymore at that time.\n\nFix it by using a physical address instead."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/powerpc/kernel/head_32.h"],"versions":[{"version":"c118c7303ad528be8ff2aea8cd1ee15452c763f0","lessThan":"dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7","status":"affected","versionType":"git"},{"version":"c118c7303ad528be8ff2aea8cd1ee15452c763f0","lessThan":"c4e3ff8b8b1d54f0c755670174c453b06e17114b","status":"affected","versionType":"git"},{"version":"c118c7303ad528be8ff2aea8cd1ee15452c763f0","lessThan":"5bb60ea611db1e04814426ed4bd1c95d1487678e","status":"affected","versionType":"git"},{"version":"3b234b4a6651ed6bdca94553aa0038fc7ded9271","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/powerpc/kernel/head_32.h"],"versions":[{"version":"5.10","status":"affected"},{"version":"0","lessThan":"5.10","status":"unaffected","versionType":"semver"},{"version":"5.10.83","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.6","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7"},{"url":"https://git.kernel.org/stable/c/c4e3ff8b8b1d54f0c755670174c453b06e17114b"},{"url":"https://git.kernel.org/stable/c/5bb60ea611db1e04814426ed4bd1c95d1487678e"}],"title":"powerpc/32: Fix hardlockup on vmap stack overflow","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-17T17:34:28.307539Z","id":"CVE-2021-47567","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-17T17:34:41.747Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.830Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c4e3ff8b8b1d54f0c755670174c453b06e17114b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5bb60ea611db1e04814426ed4bd1c95d1487678e","tags":["x_transferred"]}]}]}}