{"cve":"CVE-2026-31537","nvd":{"published":"2026-04-24T15:16:27.633","modified":"2026-06-17T10:33:56.103","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: server: make use of smbdirect_socket.send_io.bcredits\n\nIt turns out that our code will corrupt the stream of\nreassabled data transfer messages when we trigger an\nimmendiate (empty) send.\n\nIn order to fix this we'll have a single 'batch' credit per\nconnection. And code getting that credit is free to use\nas much messages until remaining_length reaches 0, then\nthe batch credit it given back and the next logical send can\nhappen.","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":[],"references":["https://git.kernel.org/stable/c/34abd408c8ba24d7c97bd02ba874d8c714f49db1","https://git.kernel.org/stable/c/5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7","https://git.kernel.org/stable/c/79242e7b6bc63efec28b7c235bc320806afce6c0"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:33:09.003606135+00:00"},"epss":{"cve":"CVE-2026-31537","score":0.00121,"percentile":0.01876,"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."]}