{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2024-35791","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-17T12:19:12.339Z","datePublished":"2024-05-17T12:24:49.520Z","dateUpdated":"2026-05-11T20:11:06.703Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T20:11:06.703Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region()\n\nDo the cache flush of converted pages in svm_register_enc_region() before\ndropping kvm->lock to fix use-after-free issues where region and/or its\narray of pages could be freed by a different task, e.g. if userspace has\n__unregister_enc_region_locked() already queued up for the region.\n\nNote, the \"obvious\" alternative of using local variables doesn't fully\nresolve the bug, as region->pages is also dynamically allocated.  I.e. the\nregion structure itself would be fine, but region->pages could be freed.\n\nFlushing multiple pages under kvm->lock is unfortunate, but the entire\nflow is a rare slow path, and the manual flush is only needed on CPUs that\nlack coherency for encrypted memory."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kvm/svm/sev.c"],"versions":[{"version":"4f627ecde7329e476a077bb0590db8f27bb8f912","lessThan":"2d13b79640b147bd77c34a5998533b2021a4122d","status":"affected","versionType":"git"},{"version":"19a23da53932bc8011220bd8c410cb76012de004","lessThan":"e126b508ed2e616d679d85fca2fbe77bb48bbdd7","status":"affected","versionType":"git"},{"version":"19a23da53932bc8011220bd8c410cb76012de004","lessThan":"4868c0ecdb6cfde7c70cf478c46e06bb9c7e5865","status":"affected","versionType":"git"},{"version":"19a23da53932bc8011220bd8c410cb76012de004","lessThan":"12f8e32a5a389a5d58afc67728c76e61beee1ad4","status":"affected","versionType":"git"},{"version":"19a23da53932bc8011220bd8c410cb76012de004","lessThan":"f6d53d8a2617dd58c89171a6b9610c470ebda38a","status":"affected","versionType":"git"},{"version":"19a23da53932bc8011220bd8c410cb76012de004","lessThan":"5ef1d8c1ddbf696e47b226e11888eaf8d9e8e807","status":"affected","versionType":"git"},{"version":"f1ecde00ce1694597f923f0d25f7a797c5243d99","status":"affected","versionType":"git"},{"version":"848bcb0a1d96f67d075465667d3a1ad4af56311e","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/x86/kvm/svm/sev.c"],"versions":[{"version":"5.11","status":"affected"},{"version":"0","lessThan":"5.11","status":"unaffected","versionType":"semver"},{"version":"5.10.215","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.154","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.84","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.24","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.12","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8","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":"5.10.15","versionEndExcluding":"5.10.215"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.1.84"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.6.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.7.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.98"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2d13b79640b147bd77c34a5998533b2021a4122d"},{"url":"https://git.kernel.org/stable/c/e126b508ed2e616d679d85fca2fbe77bb48bbdd7"},{"url":"https://git.kernel.org/stable/c/4868c0ecdb6cfde7c70cf478c46e06bb9c7e5865"},{"url":"https://git.kernel.org/stable/c/12f8e32a5a389a5d58afc67728c76e61beee1ad4"},{"url":"https://git.kernel.org/stable/c/f6d53d8a2617dd58c89171a6b9610c470ebda38a"},{"url":"https://git.kernel.org/stable/c/5ef1d8c1ddbf696e47b226e11888eaf8d9e8e807"}],"title":"KVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T03:21:47.497Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/2d13b79640b147bd77c34a5998533b2021a4122d","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/e126b508ed2e616d679d85fca2fbe77bb48bbdd7","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/4868c0ecdb6cfde7c70cf478c46e06bb9c7e5865","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/12f8e32a5a389a5d58afc67728c76e61beee1ad4","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/f6d53d8a2617dd58c89171a6b9610c470ebda38a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5ef1d8c1ddbf696e47b226e11888eaf8d9e8e807","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-35791","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T15:42:51.101780Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:33:23.051Z"}}]},"dataVersion":"5.2"}