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mm: filemap: fix nr_pages calculation overflow in filemap_map_pages()

cve-program · CVE-2026-31648

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": [
                        "mm/filemap.c"
                    ],
                    "versions": [
                        {
                            "version": "fe601b70eac6cd266e8d7d55030e90a73ed0e339",
                            "lessThan": "88591194df736a508dd5461ab2167a61e98caac1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "743a2753a02e805347969f6f89f38b736850d808",
                            "lessThan": "633ab680c405ac390e6bec5b74aaf46197c837b6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "743a2753a02e805347969f6f89f38b736850d808",
                            "lessThan": "576543bedd616254032d4ebe54a90076f9e31740",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "743a2753a02e805347969f6f89f38b736850d808",
                            "lessThan": "9316a820b9aae07d44469d6485376dad824c5b3f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "743a2753a02e805347969f6f89f38b736850d808",
                            "lessThan": "f58df566524ebcdfa394329c64f47e3c9257516e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "84ede15f27c06b111d1398dfa80b6fac4b135e34",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.117",
                            "lessThan": "6.6.135",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.159",
                            "lessThan": "6.2",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

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": [
                        "mm/filemap.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.135",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.82",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.23",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.13",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

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

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Sources read 8 Nov 21:05 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current