{"id":"CVE-2022-50562","state":"PUBLISHED","title":"tpm: acpi: Call acpi_put_table() to fix memory leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: acpi: Call acpi_put_table() to fix memory leak\n\nThe start and length of the event log area are obtained from\nTPM2 or TCPA table, so we call acpi_get_table() to get the\nACPI information, but the acpi_get_table() should be coupled with\nacpi_put_table() to release the ACPI memory, add the acpi_put_table()\nproperly to fix the memory leak.\n\nWhile we are at it, remove the redundant empty line at the\nend of the tpm_read_log_acpi().","publishedAt":"2025-10-22T13:23:21.421Z","updatedAt":"2026-05-11T19:21:49.466Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"8ddc48068ac85740d3d5f9f3b0b323e733a35b33","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"638cd298dfebce46919cbd6cf1884701215f506d","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"694a3d66f493afd77c704c6de91d9be4d6e004e4","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"8740a12ca2e2959531ad253bac99ada338b33d80","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/tpm/eventlog/acpi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.18","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.87","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.17","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.3","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/tpm/eventlog/acpi.c"]}],"references":["https://git.kernel.org/stable/c/8ddc48068ac85740d3d5f9f3b0b323e733a35b33","https://git.kernel.org/stable/c/638cd298dfebce46919cbd6cf1884701215f506d","https://git.kernel.org/stable/c/694a3d66f493afd77c704c6de91d9be4d6e004e4","https://git.kernel.org/stable/c/bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8","https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50562.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50562","state":"PUBLISHED","datePublished":"2025-10-22T13:23:21.421Z","dateUpdated":"2026-05-11T19:21:49.466Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-10-22T13:20:23.759Z"},"containers":{"cna":{"title":"tpm: acpi: Call acpi_put_table() to fix memory leak","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: acpi: Call acpi_put_table() to fix memory leak\n\nThe start and length of the event log area are obtained from\nTPM2 or TCPA table, so we call acpi_get_table() to get the\nACPI information, but the acpi_get_table() should be coupled with\nacpi_put_table() to release the ACPI memory, add the acpi_put_table()\nproperly to fix the memory leak.\n\nWhile we are at it, remove the redundant empty line at the\nend of the tpm_read_log_acpi()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"8ddc48068ac85740d3d5f9f3b0b323e733a35b33","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"638cd298dfebce46919cbd6cf1884701215f506d","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"694a3d66f493afd77c704c6de91d9be4d6e004e4","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8","versionType":"git"},{"version":"0bfb23746052168620c5b52f49d8a47c3bb022fa","status":"affected","lessThan":"8740a12ca2e2959531ad253bac99ada338b33d80","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/tpm/eventlog/acpi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.18","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.87","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.17","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.3","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/tpm/eventlog/acpi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/8ddc48068ac85740d3d5f9f3b0b323e733a35b33"},{"url":"https://git.kernel.org/stable/c/638cd298dfebce46919cbd6cf1884701215f506d"},{"url":"https://git.kernel.org/stable/c/694a3d66f493afd77c704c6de91d9be4d6e004e4"},{"url":"https://git.kernel.org/stable/c/bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8"},{"url":"https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:21:49.466Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"5.15.87"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"6.0.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"6.1.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}