{"api_version":"1","generated_at":"2026-07-16T20:47:10+00:00","cve":"CVE-2026-53278","urls":{"html":"https://cve.report/CVE-2026-53278","api":"https://cve.report/api/cve/CVE-2026-53278.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53278","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53278"},"summary":{"title":"arm_mpam: Check whether the config array is allocated before destroying it","description":"In the Linux kernel, the following vulnerability has been resolved:\n\narm_mpam: Check whether the config array is allocated before destroying it\n\n__destroy_component_cfg() is called to free the configuration array.\nIt uses the embedded 'garbage' structure, which means the array has\nto be allocated.\n\nIf __destroy_component_cfg() is called from mpam_disable() before the\nconfiguration was ever allocated, then a NULL pointer is dereferenced.\n\nCheck for this case and return early if the configuration is not\nallocated.\n\n__destroy_component_cfg() also frees the mbwu_state as this is allocated\nby __allocate_component_cfg(). As the mbwu_state is allocated after\ncomp->cfg is set, and is also under mpam_list_lock, only the first\npointer needs checking.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-26 20:17:19","updated_at":"2026-07-08 03:58:33"},"problem_types":["CWE-476"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/6ccbb613b42a1f1ba7bfd547a148f644a902a25c","name":"https://git.kernel.org/stable/c/6ccbb613b42a1f1ba7bfd547a148f644a902a25c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8eb6dc76eeae5302c0d885906a0e469ef9630a59","name":"https://git.kernel.org/stable/c/8eb6dc76eeae5302c0d885906a0e469ef9630a59","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53278","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53278","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524 8eb6dc76eeae5302c0d885906a0e469ef9630a59 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524 6ccbb613b42a1f1ba7bfd547a148f644a902a25c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"53278","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"53278","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"7.1","cpe7":"rc1","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"53278","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"7.1","cpe7":"rc2","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"53278","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"7.1","cpe7":"rc3","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53278","cve":"CVE-2026-53278","epss":"0.001070000","percentile":"0.013860000","score_date":"2026-07-09","updated_at":"2026-07-10 00:08:29"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/resctrl/mpam_devices.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8eb6dc76eeae5302c0d885906a0e469ef9630a59","status":"affected","version":"3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524","versionType":"git"},{"lessThan":"6ccbb613b42a1f1ba7bfd547a148f644a902a25c","status":"affected","version":"3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/resctrl/mpam_devices.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\narm_mpam: Check whether the config array is allocated before destroying it\n\n__destroy_component_cfg() is called to free the configuration array.\nIt uses the embedded 'garbage' structure, which means the array has\nto be allocated.\n\nIf __destroy_component_cfg() is called from mpam_disable() before the\nconfiguration was ever allocated, then a NULL pointer is dereferenced.\n\nCheck for this case and return early if the configuration is not\nallocated.\n\n__destroy_component_cfg() also frees the mbwu_state as this is allocated\nby __allocate_component_cfg(). As the mbwu_state is allocated after\ncomp->cfg is set, and is also under mpam_list_lock, only the first\npointer needs checking."}],"providerMetadata":{"dateUpdated":"2026-06-26T19:40:40.694Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8eb6dc76eeae5302c0d885906a0e469ef9630a59"},{"url":"https://git.kernel.org/stable/c/6ccbb613b42a1f1ba7bfd547a148f644a902a25c"}],"title":"arm_mpam: Check whether the config array is allocated before destroying it","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53278","datePublished":"2026-06-26T19:40:40.694Z","dateReserved":"2026-06-09T07:44:35.395Z","dateUpdated":"2026-06-26T19:40:40.694Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-26 20:17:19","lastModifiedDate":"2026-07-08 03:58:33","problem_types":["CWE-476"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.10","matchCriteriaId":"A13475D2-59BF-4716-94B5-7C1D239A2CF4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*","matchCriteriaId":"B1EF7059-E670-45F4-B422-54C40FA86390"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*","matchCriteriaId":"0D38F0BF-A728-4133-A358-D44A2F7EE6D6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*","matchCriteriaId":"EC732D08-5F7B-46D9-B154-E60C7F4F0A97"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53278","Ordinal":"1","Title":"arm_mpam: Check whether the config array is allocated before des","CVE":"CVE-2026-53278","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53278","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\narm_mpam: Check whether the config array is allocated before destroying it\n\n__destroy_component_cfg() is called to free the configuration array.\nIt uses the embedded 'garbage' structure, which means the array has\nto be allocated.\n\nIf __destroy_component_cfg() is called from mpam_disable() before the\nconfiguration was ever allocated, then a NULL pointer is dereferenced.\n\nCheck for this case and return early if the configuration is not\nallocated.\n\n__destroy_component_cfg() also frees the mbwu_state as this is allocated\nby __allocate_component_cfg(). As the mbwu_state is allocated after\ncomp->cfg is set, and is also under mpam_list_lock, only the first\npointer needs checking.","Type":"Description","Title":"arm_mpam: Check whether the config array is allocated before des"}]}}}