{"id":"CVE-2026-53213","state":"PUBLISHED","title":"drm/vc4: fix krealloc() memory leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: fix krealloc() memory leak\n\nDon't just overwrite the original pointer passed to krealloc()\nwith its return value without checking latter:\n\n    MEM = krealloc(MEM, SZ, GFP);\n\nIf krealloc() returns NULL, that erases the pointer\nto the still allocated memory, hence leaks this memory.\nInstead, use a temporary variable, check it's not NULL\nand only then assign it to the original pointer:\n\n    TMP = krealloc(MEM, SZ, GFP);\n    if (!TMP) return;\n    MEM = TMP;\n\nWhile on it, use krealloc_array().","publishedAt":"2026-06-25T08:39:17.552Z","updatedAt":"2026-06-25T08:39:17.552Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"30165a09f76eaf34951c818eb5d9d6e4771d76f6","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5f","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2e","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"02f5e4db57c0cdd7bac89d503b301a093a0fa95c","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"4fc692dc6df5bc777cc1bcebf95179e28594875f","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"5d563a5da8717629ae72f9eadf1e0e340bd1658b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_validate_shaders.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.8","versionType":"semver"},{"version":"5.15.210","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.176","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.143","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.94","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_validate_shaders.c"]}],"references":["https://git.kernel.org/stable/c/30165a09f76eaf34951c818eb5d9d6e4771d76f6","https://git.kernel.org/stable/c/fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5f","https://git.kernel.org/stable/c/e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2e","https://git.kernel.org/stable/c/c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27","https://git.kernel.org/stable/c/02f5e4db57c0cdd7bac89d503b301a093a0fa95c","https://git.kernel.org/stable/c/4fc692dc6df5bc777cc1bcebf95179e28594875f","https://git.kernel.org/stable/c/5d563a5da8717629ae72f9eadf1e0e340bd1658b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53213.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53213","state":"PUBLISHED","datePublished":"2026-06-25T08:39:17.552Z","dateUpdated":"2026-06-25T08:39:17.552Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.392Z"},"containers":{"cna":{"title":"drm/vc4: fix krealloc() memory leak","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: fix krealloc() memory leak\n\nDon't just overwrite the original pointer passed to krealloc()\nwith its return value without checking latter:\n\n    MEM = krealloc(MEM, SZ, GFP);\n\nIf krealloc() returns NULL, that erases the pointer\nto the still allocated memory, hence leaks this memory.\nInstead, use a temporary variable, check it's not NULL\nand only then assign it to the original pointer:\n\n    TMP = krealloc(MEM, SZ, GFP);\n    if (!TMP) return;\n    MEM = TMP;\n\nWhile on it, use krealloc_array()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"30165a09f76eaf34951c818eb5d9d6e4771d76f6","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5f","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2e","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"02f5e4db57c0cdd7bac89d503b301a093a0fa95c","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"4fc692dc6df5bc777cc1bcebf95179e28594875f","versionType":"git"},{"version":"6d45c81d229d71da54d374143e7d6abad4c0cf31","status":"affected","lessThan":"5d563a5da8717629ae72f9eadf1e0e340bd1658b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_validate_shaders.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.8","versionType":"semver"},{"version":"5.15.210","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.176","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.143","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.94","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vc4/vc4_validate_shaders.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/30165a09f76eaf34951c818eb5d9d6e4771d76f6"},{"url":"https://git.kernel.org/stable/c/fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5f"},{"url":"https://git.kernel.org/stable/c/e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2e"},{"url":"https://git.kernel.org/stable/c/c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27"},{"url":"https://git.kernel.org/stable/c/02f5e4db57c0cdd7bac89d503b301a093a0fa95c"},{"url":"https://git.kernel.org/stable/c/4fc692dc6df5bc777cc1bcebf95179e28594875f"},{"url":"https://git.kernel.org/stable/c/5d563a5da8717629ae72f9eadf1e0e340bd1658b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-25T08:39:17.552Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.12.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}