{"id":"CVE-2023-53614","state":"PUBLISHED","title":"mm/ksm: fix race with VMA iteration and mm_struct teardown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/ksm: fix race with VMA iteration and mm_struct teardown\n\nexit_mmap() will tear down the VMAs and maple tree with the mmap_lock held\nin write mode.  Ensure that the maple tree is still valid by checking\nksm_test_exit() after taking the mmap_lock in read mode, but before the\nfor_each_vma() iterator dereferences a destroyed maple tree.\n\nSince the maple tree is destroyed, the flags telling lockdep to check an\nexternal lock has been cleared.  Skip the for_each_vma() iterator to avoid\ndereferencing a maple tree without the external lock flag, which would\ncreate a lockdep warning.","publishedAt":"2025-10-04T15:44:21.671Z","updatedAt":"2026-05-11T19:48:33.960Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a5f18ba0727656bd1fe3bcdb0d563f81790f9a04","status":"affected","lessThan":"286b0cab31bac29960e5684f6fb331d42f03b363","versionType":"git"},{"version":"a5f18ba0727656bd1fe3bcdb0d563f81790f9a04","status":"affected","lessThan":"b4f664ffd8f78c05a1fd542a28bc5a11e994c014","versionType":"git"},{"version":"a5f18ba0727656bd1fe3bcdb0d563f81790f9a04","status":"affected","lessThan":"6db504ce55bdbc575723938fc480713c9183f6a2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/ksm.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.22","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.9","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/ksm.c"]}],"references":["https://git.kernel.org/stable/c/286b0cab31bac29960e5684f6fb331d42f03b363","https://git.kernel.org/stable/c/b4f664ffd8f78c05a1fd542a28bc5a11e994c014","https://git.kernel.org/stable/c/6db504ce55bdbc575723938fc480713c9183f6a2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53614.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53614","state":"PUBLISHED","datePublished":"2025-10-04T15:44:21.671Z","dateUpdated":"2026-05-11T19:48:33.960Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-10-04T15:40:38.481Z"},"containers":{"cna":{"title":"mm/ksm: fix race with VMA iteration and mm_struct teardown","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/ksm: fix race with VMA iteration and mm_struct teardown\n\nexit_mmap() will tear down the VMAs and maple tree with the mmap_lock held\nin write mode.  Ensure that the maple tree is still valid by checking\nksm_test_exit() after taking the mmap_lock in read mode, but before the\nfor_each_vma() iterator dereferences a destroyed maple tree.\n\nSince the maple tree is destroyed, the flags telling lockdep to check an\nexternal lock has been cleared.  Skip the for_each_vma() iterator to avoid\ndereferencing a maple tree without the external lock flag, which would\ncreate a lockdep warning."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a5f18ba0727656bd1fe3bcdb0d563f81790f9a04","status":"affected","lessThan":"286b0cab31bac29960e5684f6fb331d42f03b363","versionType":"git"},{"version":"a5f18ba0727656bd1fe3bcdb0d563f81790f9a04","status":"affected","lessThan":"b4f664ffd8f78c05a1fd542a28bc5a11e994c014","versionType":"git"},{"version":"a5f18ba0727656bd1fe3bcdb0d563f81790f9a04","status":"affected","lessThan":"6db504ce55bdbc575723938fc480713c9183f6a2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/ksm.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.22","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.9","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/ksm.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/286b0cab31bac29960e5684f6fb331d42f03b363"},{"url":"https://git.kernel.org/stable/c/b4f664ffd8f78c05a1fd542a28bc5a11e994c014"},{"url":"https://git.kernel.org/stable/c/6db504ce55bdbc575723938fc480713c9183f6a2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:48:33.960Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.22"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}