{"cve":"CVE-2026-53278","nvd":{"published":"2026-06-26T20:17:19.277","modified":"2026-07-08T03:58:33.900","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/6ccbb613b42a1f1ba7bfd547a148f644a902a25c","https://git.kernel.org/stable/c/8eb6dc76eeae5302c0d885906a0e469ef9630a59"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-53278","score":0.00143,"percentile":0.03619,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}