{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-52504","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-20T12:30:33.314Z","datePublished":"2024-03-02T21:52:18.500Z","dateUpdated":"2025-05-04T07:38:09.999Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:38:09.999Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/alternatives: Disable KASAN in apply_alternatives()\n\nFei has reported that KASAN triggers during apply_alternatives() on\na 5-level paging machine:\n\n\tBUG: KASAN: out-of-bounds in rcu_is_watching()\n\tRead of size 4 at addr ff110003ee6419a0 by task swapper/0/0\n\t...\n\t__asan_load4()\n\trcu_is_watching()\n\ttrace_hardirqs_on()\n\ttext_poke_early()\n\tapply_alternatives()\n\t...\n\nOn machines with 5-level paging, cpu_feature_enabled(X86_FEATURE_LA57)\ngets patched. It includes KASAN code, where KASAN_SHADOW_START depends on\n__VIRTUAL_MASK_SHIFT, which is defined with cpu_feature_enabled().\n\nKASAN gets confused when apply_alternatives() patches the\nKASAN_SHADOW_START users. A test patch that makes KASAN_SHADOW_START\nstatic, by replacing __VIRTUAL_MASK_SHIFT with 56, works around the issue.\n\nFix it for real by disabling KASAN while the kernel is patching alternatives.\n\n[ mingo: updated the changelog ]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kernel/alternative.c"],"versions":[{"version":"6657fca06e3ffab8d0b3f9d8b397f5ee498952d7","lessThan":"3719d3c36aa853d5a2401af9f8d6b116c91ad5ae","status":"affected","versionType":"git"},{"version":"6657fca06e3ffab8d0b3f9d8b397f5ee498952d7","lessThan":"3770c38cd6a60494da29ac2da73ff8156440a2d1","status":"affected","versionType":"git"},{"version":"6657fca06e3ffab8d0b3f9d8b397f5ee498952d7","lessThan":"6788b10620ca6e98575d1e06e72a8974aad7657e","status":"affected","versionType":"git"},{"version":"6657fca06e3ffab8d0b3f9d8b397f5ee498952d7","lessThan":"ecba5afe86f30605eb9dfb7f265a8de0218d4cfc","status":"affected","versionType":"git"},{"version":"6657fca06e3ffab8d0b3f9d8b397f5ee498952d7","lessThan":"5b784489c8158518bf7a466bb3cc045b0fb66b4b","status":"affected","versionType":"git"},{"version":"6657fca06e3ffab8d0b3f9d8b397f5ee498952d7","lessThan":"cd287cc208dfe6bd6da98e7f88e723209242c9b4","status":"affected","versionType":"git"},{"version":"6657fca06e3ffab8d0b3f9d8b397f5ee498952d7","lessThan":"d35652a5fc9944784f6f50a5c979518ff8dacf61","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/kernel/alternative.c"],"versions":[{"version":"4.17","status":"affected"},{"version":"0","lessThan":"4.17","status":"unaffected","versionType":"semver"},{"version":"4.19.297","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.270","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.199","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.136","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.59","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.5.8","lessThanOrEqual":"6.5.*","status":"unaffected","versionType":"semver"},{"version":"6.6","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":"4.17","versionEndExcluding":"4.19.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.17","versionEndExcluding":"5.4.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.17","versionEndExcluding":"5.10.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.17","versionEndExcluding":"5.15.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.17","versionEndExcluding":"6.1.59"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.17","versionEndExcluding":"6.5.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.17","versionEndExcluding":"6.6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3719d3c36aa853d5a2401af9f8d6b116c91ad5ae"},{"url":"https://git.kernel.org/stable/c/3770c38cd6a60494da29ac2da73ff8156440a2d1"},{"url":"https://git.kernel.org/stable/c/6788b10620ca6e98575d1e06e72a8974aad7657e"},{"url":"https://git.kernel.org/stable/c/ecba5afe86f30605eb9dfb7f265a8de0218d4cfc"},{"url":"https://git.kernel.org/stable/c/5b784489c8158518bf7a466bb3cc045b0fb66b4b"},{"url":"https://git.kernel.org/stable/c/cd287cc208dfe6bd6da98e7f88e723209242c9b4"},{"url":"https://git.kernel.org/stable/c/d35652a5fc9944784f6f50a5c979518ff8dacf61"}],"title":"x86/alternatives: Disable KASAN in apply_alternatives()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52504","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-05T22:11:24.462038Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:23:02.291Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T23:03:20.409Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/3719d3c36aa853d5a2401af9f8d6b116c91ad5ae","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3770c38cd6a60494da29ac2da73ff8156440a2d1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/6788b10620ca6e98575d1e06e72a8974aad7657e","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ecba5afe86f30605eb9dfb7f265a8de0218d4cfc","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5b784489c8158518bf7a466bb3cc045b0fb66b4b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/cd287cc208dfe6bd6da98e7f88e723209242c9b4","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d35652a5fc9944784f6f50a5c979518ff8dacf61","tags":["x_transferred"]}]}]}}