{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-38667","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-06-21T11:16:40.598Z","datePublished":"2024-06-24T13:52:25.399Z","dateUpdated":"2025-05-04T09:16:03.741Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:16:03.741Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: prevent pt_regs corruption for secondary idle threads\n\nTop of the kernel thread stack should be reserved for pt_regs. However\nthis is not the case for the idle threads of the secondary boot harts.\nTheir stacks overlap with their pt_regs, so both may get corrupted.\n\nSimilar issue has been fixed for the primary hart, see c7cdd96eca28\n(\"riscv: prevent stack corruption by reserving task_pt_regs(p) early\").\nHowever that fix was not propagated to the secondary harts. The problem\nhas been noticed in some CPU hotplug tests with V enabled. The function\nsmp_callin stored several registers on stack, corrupting top of pt_regs\nstructure including status field. As a result, kernel attempted to save\nor restore inexistent V context."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/riscv/kernel/cpu_ops_sbi.c","arch/riscv/kernel/cpu_ops_spinwait.c"],"versions":[{"version":"2875fe0561569f82d0e63658ccf0d11ce7da8922","lessThan":"ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e","status":"affected","versionType":"git"},{"version":"2875fe0561569f82d0e63658ccf0d11ce7da8922","lessThan":"3090c06d50eaa91317f84bf3eac4c265e6cb8d44","status":"affected","versionType":"git"},{"version":"2875fe0561569f82d0e63658ccf0d11ce7da8922","lessThan":"0c1f28c32a194303da630fca89481334b9547b80","status":"affected","versionType":"git"},{"version":"2875fe0561569f82d0e63658ccf0d11ce7da8922","lessThan":"a638b0461b58aa3205cd9d5f14d6f703d795b4af","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/riscv/kernel/cpu_ops_sbi.c","arch/riscv/kernel/cpu_ops_spinwait.c"],"versions":[{"version":"5.7","status":"affected"},{"version":"0","lessThan":"5.7","status":"unaffected","versionType":"semver"},{"version":"6.1.93","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.33","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.9.4","lessThanOrEqual":"6.9.*","status":"unaffected","versionType":"semver"},{"version":"6.10","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":"5.7","versionEndExcluding":"6.1.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.6.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.9.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.10"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e"},{"url":"https://git.kernel.org/stable/c/3090c06d50eaa91317f84bf3eac4c265e6cb8d44"},{"url":"https://git.kernel.org/stable/c/0c1f28c32a194303da630fca89481334b9547b80"},{"url":"https://git.kernel.org/stable/c/a638b0461b58aa3205cd9d5f14d6f703d795b4af"}],"title":"riscv: prevent pt_regs corruption for secondary idle threads","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T04:12:26.094Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/ea22d4195cca13d5fdbc4d6555a2dfb8a7867a9e","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3090c06d50eaa91317f84bf3eac4c265e6cb8d44","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/0c1f28c32a194303da630fca89481334b9547b80","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/a638b0461b58aa3205cd9d5f14d6f703d795b4af","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-38667","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T17:08:46.656306Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:34:43.880Z"}}]}}