{"cve":"CVE-2026-31493","nvd":{"published":"2026-04-22T14:16:47.170","modified":"2026-10-21T13:18:37.917","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/efa: Fix use of completion ctx after free\n\nOn admin queue completion handling, if the admin command completed with\nerror we print data from the completion context. The issue is that we\nalready freed the completion context in polling/interrupts handler which\nmeans we print data from context in an unknown state (it might be\nalready used again).\nChange the admin submission flow so alloc/dealloc of the context will be\nsymmetric and dealloc will be called after any potential use of the\ncontext.","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":["CWE-416"],"references":["https://git.kernel.org/stable/c/0dd98aea1c0c45987fa2dd92f988b0eb1a72c125","https://git.kernel.org/stable/c/1cf95fe5dc5471efea947b4c6f8913da6bc7976e","https://git.kernel.org/stable/c/7ba09d85f177e9f5f64b881f33dbcb57b2cf23d5","https://git.kernel.org/stable/c/8c24b5179af260a5f36571c992d29aab1f448544","https://git.kernel.org/stable/c/ef3b06742c8a201d0e83edc9a33a89a4fe3009f8"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-31493","score":0.00163,"percentile":0.0548,"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."]}