{"cve":"CVE-2026-80627","nvd":{"published":"2026-08-28T08:16:46.867","modified":"2026-08-28T08:16:46.867","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nMIPS: mm: Fix out-of-bounds write in maar_res_walk()\n\nmaar_res_walk() uses wi->num_cfg as the index into the fixed-size\nwi->cfg array, but checks whether the array is full only after it has\nfilled the selected entry. If walk_system_ram_range() reports more than\n16 memory ranges, the overflow call writes one struct maar_config past\nthe end of the array before WARN_ON() prevents num_cfg from advancing.\n\nMove the full-array check before taking the array slot and return non-zero\nwhen the scratch array is full, so walk_system_ram_range() terminates the\nwalk instead of invoking the callback for further ranges.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/038f068cced8e9c49e8c419f3112d909ad366a3a","https://git.kernel.org/stable/c/1b001b16bc88f3f7817e228acfd91ee01bdcfcce","https://git.kernel.org/stable/c/431812eb88c200bc3ec33b88782c8cc415842074","https://git.kernel.org/stable/c/44c1d902cf0798b60762a7a98be992b9f5ded7dd","https://git.kernel.org/stable/c/8b3e0c1c63015deaf084286899f5b2d0526715de"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-80627","score":0.0022,"percentile":0.12505,"date":"2026-11-01"},"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."]}