{"id":"CVE-2023-52576","state":"PUBLISHED","title":"x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()\n\nThe code calling ima_free_kexec_buffer() runs long after the memblock\nallocator has already been torn down, potentially resulting in a use\nafter free in memblock_isolate_range().\n\nWith KASAN or KFENCE, this use after free will result in a BUG\nfrom the idle task, and a subsequent kernel panic.\n\nSwitch ima_free_kexec_buffer() over to memblock_free_late() to avoid\nthat bug.","publishedAt":"2024-03-02T21:59:44.545Z","updatedAt":"2026-05-11T19:29:35.497Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fee3ff99bc67604fba77f19da0106f3ec52b1956","status":"affected","lessThan":"eef16bfdb212da60f5144689f2967fb25b051a2b","versionType":"git"},{"version":"fee3ff99bc67604fba77f19da0106f3ec52b1956","status":"affected","lessThan":"d2dfbc0e3b7a04c2d941421a958dc31c897fb204","versionType":"git"},{"version":"fee3ff99bc67604fba77f19da0106f3ec52b1956","status":"affected","lessThan":"34cf99c250d5cd2530b93a57b0de31d3aaf8685b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kernel/setup.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"6.1.56","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.6","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kernel/setup.c"]}],"references":["https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b","https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204","https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52576.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52576","state":"PUBLISHED","datePublished":"2024-03-02T21:59:44.545Z","dateUpdated":"2026-05-11T19:29:35.497Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-03-02T21:55:42.568Z"},"containers":{"cna":{"title":"x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()\n\nThe code calling ima_free_kexec_buffer() runs long after the memblock\nallocator has already been torn down, potentially resulting in a use\nafter free in memblock_isolate_range().\n\nWith KASAN or KFENCE, this use after free will result in a BUG\nfrom the idle task, and a subsequent kernel panic.\n\nSwitch ima_free_kexec_buffer() over to memblock_free_late() to avoid\nthat bug."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fee3ff99bc67604fba77f19da0106f3ec52b1956","status":"affected","lessThan":"eef16bfdb212da60f5144689f2967fb25b051a2b","versionType":"git"},{"version":"fee3ff99bc67604fba77f19da0106f3ec52b1956","status":"affected","lessThan":"d2dfbc0e3b7a04c2d941421a958dc31c897fb204","versionType":"git"},{"version":"fee3ff99bc67604fba77f19da0106f3ec52b1956","status":"affected","lessThan":"34cf99c250d5cd2530b93a57b0de31d3aaf8685b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kernel/setup.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"6.1.56","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.6","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kernel/setup.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b"},{"url":"https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204"},{"url":"https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:29:35.497Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.5.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-07-24T14:52:41.445700Z","id":"CVE-2023-52576","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","type":"CWE","lang":"en","description":"CWE-416 Use After Free"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-11-01T15:52:22.842Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T23:03:20.880Z"}}]}}}