cvelist/2024/45xxx/CVE-2024-45022.json

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    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-45022",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmalloc: fix page mapping if vm_area_alloc_pages() with high order fallback to order 0\n\nThe __vmap_pages_range_noflush() assumes its argument pages** contains\npages with the same page shift.  However, since commit e9c3cda4d86e (\"mm,\nvmalloc: fix high order __GFP_NOFAIL allocations\"), if gfp_flags includes\n__GFP_NOFAIL with high order in vm_area_alloc_pages() and page allocation\nfailed for high order, the pages** may contain two different page shifts\n(high order and order-0).  This could lead __vmap_pages_range_noflush() to\nperform incorrect mappings, potentially resulting in memory corruption.\n\nUsers might encounter this as follows (vmap_allow_huge = true, 2M is for\nPMD_SIZE):\n\nkvmalloc(2M, __GFP_NOFAIL|GFP_X)\n    __vmalloc_node_range_noprof(vm_flags=VM_ALLOW_HUGE_VMAP)\n        vm_area_alloc_pages(order=9) ---> order-9 allocation failed and fallback to order-0\n            vmap_pages_range()\n                vmap_pages_range_noflush()\n                    __vmap_pages_range_noflush(page_shift = 21) ----> wrong mapping happens\n\nWe can remove the fallback code because if a high-order allocation fails,\n__vmalloc_node_range_noprof() will retry with order-0.  Therefore, it is\nunnecessary to fallback to order-0 here.  Therefore, fix this by removing\nthe fallback code."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "fe5c2bdcb14c",
                                            "version_value": "fd1ffbb50ef4"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "e9c3cda4d86e",
                                            "version_value": "de7bad86345c"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.3",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.3",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.1.107",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.48",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.10.7",
                                                        "lessThanOrEqual": "6.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.11",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
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    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/fd1ffbb50ef4da5e1378a46616b6d7407dc795da",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/fd1ffbb50ef4da5e1378a46616b6d7407dc795da"
            },
            {
                "url": "https://git.kernel.org/stable/c/de7bad86345c43cd040ed43e20d9fad78a3ee59f",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/de7bad86345c43cd040ed43e20d9fad78a3ee59f"
            },
            {
                "url": "https://git.kernel.org/stable/c/c91618816f4d21fc574d7577a37722adcd4075b2",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/c91618816f4d21fc574d7577a37722adcd4075b2"
            },
            {
                "url": "https://git.kernel.org/stable/c/61ebe5a747da649057c37be1c37eb934b4af79ca",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/61ebe5a747da649057c37be1c37eb934b4af79ca"
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