{"cve":"CVE-2026-98324","nvd":{"published":"2026-10-06T09:18:24.573","modified":"2026-10-19T10:18:34.593","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: pxa: fix double counting of the hw descriptors\n\npxad_alloc_desc() was converted from\n\n        kzalloc(struct_size(sw_desc, hw_desc, nb_hw_desc), GFP_NOWAIT)\n\nto kzalloc_flex(), which sets the __counted_by() counter sw_desc->nb_desc\nitself - but only where the compiler has __builtin_counted_by_ref(), so\nfrom gcc 15.1 or clang 22.1 on. The loop below it still increments\nnb_desc, which makes it come out doubled there and correct elsewhere.\n\nnb_desc is what pxad_free_desc() iterates over and what\nset_updater_desc() indexes from, so set it explicitly and drop the\nincrement. The error path has to lower it to the number of descriptors\nallocated so far, otherwise pxad_free_desc() would free entries that were\nnever allocated.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/1de93785f32b450e9eae1e4fcfb7d03eb49eb27e","https://git.kernel.org/stable/c/f6504be006aa4bb4bd26285f410a885c17920d65"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:57:46.668721662+00:00"},"epss":{"cve":"CVE-2026-98324","score":0.00129,"percentile":0.02555,"date":"2026-10-25"},"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."]}