{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21965","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-29T08:45:45.796Z","datePublished":"2025-04-01T15:47:01.129Z","dateUpdated":"2026-05-11T21:09:58.179Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:09:58.179Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Validate prev_cpu in scx_bpf_select_cpu_dfl()\n\nIf a BPF scheduler provides an invalid CPU (outside the nr_cpu_ids\nrange) as prev_cpu to scx_bpf_select_cpu_dfl() it can cause a kernel\ncrash.\n\nTo prevent this, validate prev_cpu in scx_bpf_select_cpu_dfl() and\ntrigger an scx error if an invalid CPU is specified."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/sched/ext.c"],"versions":[{"version":"f0e1a0643a59bf1f922fa209cec86a170b784f3f","lessThan":"752b56bb76e2471197d25d6948d85753043b10da","status":"affected","versionType":"git"},{"version":"f0e1a0643a59bf1f922fa209cec86a170b784f3f","lessThan":"515680e76c536dd4aa8e2b5d674b0d441baddf5b","status":"affected","versionType":"git"},{"version":"f0e1a0643a59bf1f922fa209cec86a170b784f3f","lessThan":"9360dfe4cbd62ff1eb8217b815964931523b75b3","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/sched/ext.c"],"versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.12.20","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13.8","lessThanOrEqual":"6.13.*","status":"unaffected","versionType":"semver"},{"version":"6.14","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":"6.12","versionEndExcluding":"6.12.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.13.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/752b56bb76e2471197d25d6948d85753043b10da"},{"url":"https://git.kernel.org/stable/c/515680e76c536dd4aa8e2b5d674b0d441baddf5b"},{"url":"https://git.kernel.org/stable/c/9360dfe4cbd62ff1eb8217b815964931523b75b3"}],"title":"sched_ext: Validate prev_cpu in scx_bpf_select_cpu_dfl()","x_generator":{"engine":"bippy-1.2.0"}}}}