{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53278","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.395Z","datePublished":"2026-06-26T19:40:40.694Z","dateUpdated":"2026-06-26T19:40:40.694Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-26T19:40:40.694Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/resctrl/mpam_devices.c"],"versions":[{"version":"3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524","lessThan":"8eb6dc76eeae5302c0d885906a0e469ef9630a59","status":"affected","versionType":"git"},{"version":"3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524","lessThan":"6ccbb613b42a1f1ba7bfd547a148f644a902a25c","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/resctrl/mpam_devices.c"],"versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"7.0.10","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"6.19","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1"}]}]}],"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"}}}}