CVE-2026-89791Published

perf: Fix use-after-free when perf mmap() revival races with the last munmap()

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-89791

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/events/core.c"
                    ],
                    "versions": [
                        {
                            "version": "59741451b49ce9964a9758c19d6f7df2a1255c75",
                            "lessThan": "929cb3b9dc818dd9fa89d510d4ff2b255e42badd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "59741451b49ce9964a9758c19d6f7df2a1255c75",
                            "lessThan": "0c739f54f1c77f3a4643160cd2e031b6c2f2aab6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "59741451b49ce9964a9758c19d6f7df2a1255c75",
                            "lessThan": "58a8108bc73de0740d5b88150465d6690ea5f85f",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/events/core.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.5",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON