{"cve":"CVE-2023-54315","nvd":{"published":"2025-12-30T13:16:20.760","modified":"2026-06-17T06:47:12.720","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/powernv/sriov: perform null check on iov before dereferencing iov\n\nCurrently pointer iov is being dereferenced before the null check of iov\nwhich can lead to null pointer dereference errors. Fix this by moving the\niov null check before the dereferencing.\n\nDetected using cppcheck static analysis:\nlinux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either\nthe condition '!iov' is redundant or there is possible null pointer\ndereference: iov. [nullPointerRedundantCheck]\n num_vfs = iov->num_vfs;\n           ^","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323","https://git.kernel.org/stable/c/6314465b88072a6b6f3b3c12a7898abe09095f95","https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382","https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106","https://git.kernel.org/stable/c/d9a1aaea856002cb58dfb7c8d8770400fa1a0299"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54315","score":0.00191,"percentile":0.088,"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."]}