{"id":"CVE-2026-72495","title":"RDMA/bnxt_re: Avoid repeated requests to allocate WC pages","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Avoid repeated requests to allocate WC pages\n\nApplications can request multiple WC pages for the same ucontext.\nAs of now, only 1 WC page per ucontext is …","severity":"critical","cvss":9.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 360da60d6c6edb9740de7a8e6d8969d62ceff956 < 478c4d24193fe3e6aa2accd4874ae43000e4a217","Linux >= 360da60d6c6edb9740de7a8e6d8969d62ceff956 < da406b8b49c1dfe661a497483940d7ee781430db","Linux >= 360da60d6c6edb9740de7a8e6d8969d62ceff956 < 441baa79043431807115fd030d7d0bb14ed441a0","Linux 6.5"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:51:00.430753Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:55:26.977Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72495","references":[{"url":"https://git.kernel.org/stable/c/478c4d24193fe3e6aa2accd4874ae43000e4a217"},{"url":"https://git.kernel.org/stable/c/da406b8b49c1dfe661a497483940d7ee781430db"},{"url":"https://git.kernel.org/stable/c/441baa79043431807115fd030d7d0bb14ed441a0"}],"tags":["cve.org"],"epss":0.00194,"epssPercentile":0.08444,"ingestedAt":"2026-10-16T19:46:24.390Z","slug":"CVE-2026-72495","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Avoid repeated requests to allocate WC pages\n\nApplications can request multiple WC pages for the same ucontext.\nAs of now, only 1 WC page per ucontext is supported. Add a lock to\navoid concurrent access and a check to fail repeated requests.\nAlso, if the mmap entry insert fails for the WC, free the Doorbell\npage index mapped for the WC page.\n\n## Affected\n\n- `Linux >= 360da60d6c6edb9740de7a8e6d8969d62ceff956 < 478c4d24193fe3e6aa2accd4874ae43000e4a217`\n- `Linux >= 360da60d6c6edb9740de7a8e6d8969d62ceff956 < da406b8b49c1dfe661a497483940d7ee781430db`\n- `Linux >= 360da60d6c6edb9740de7a8e6d8969d62ceff956 < 441baa79043431807115fd030d7d0bb14ed441a0`\n- `Linux 6.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":51.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}