{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-26947",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-19T14:20:24.197Z",
        "datePublished": "2024-05-01T05:18:17.316Z",
        "dateUpdated": "2024-08-02T00:21:05.505Z"
    },
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:25:40.408Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses\n\nSince commit a4d5613c4dc6 (\"arm: extend pfn_valid to take into account\nfreed memory map alignment\") changes the semantics of pfn_valid() to check\npresence of the memory map for a PFN. A valid page for an address which\nis reserved but not mapped by the kernel[1], the system crashed during\nsome uio test with the following memory layout:\n\n node   0: [mem 0x00000000c0a00000-0x00000000cc8fffff]\n node   0: [mem 0x00000000d0000000-0x00000000da1fffff]\n the uio layout is：0xc0900000, 0x100000\n\nthe crash backtrace like:\n\n  Unable to handle kernel paging request at virtual address bff00000\n  [...]\n  CPU: 1 PID: 465 Comm: startapp.bin Tainted: G           O      5.10.0 #1\n  Hardware name: Generic DT based system\n  PC is at b15_flush_kern_dcache_area+0x24/0x3c\n  LR is at __sync_icache_dcache+0x6c/0x98\n  [...]\n   (b15_flush_kern_dcache_area) from (__sync_icache_dcache+0x6c/0x98)\n   (__sync_icache_dcache) from (set_pte_at+0x28/0x54)\n   (set_pte_at) from (remap_pfn_range+0x1a0/0x274)\n   (remap_pfn_range) from (uio_mmap+0x184/0x1b8 [uio])\n   (uio_mmap [uio]) from (__mmap_region+0x264/0x5f4)\n   (__mmap_region) from (__do_mmap_mm+0x3ec/0x440)\n   (__do_mmap_mm) from (do_mmap+0x50/0x58)\n   (do_mmap) from (vm_mmap_pgoff+0xfc/0x188)\n   (vm_mmap_pgoff) from (ksys_mmap_pgoff+0xac/0xc4)\n   (ksys_mmap_pgoff) from (ret_fast_syscall+0x0/0x5c)\n  Code: e0801001 e2423001 e1c00003 f57ff04f (ee070f3e)\n  ---[ end trace 09cf0734c3805d52 ]---\n  Kernel panic - not syncing: Fatal exception\n\nSo check if PG_reserved was set to solve this issue.\n\n[1]: https://lore.kernel.org/lkml/Zbtdue57RO0QScJM@linux.ibm.com/"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm/mm/flush.c"
                    ],
                    "versions": [
                        {
                            "version": "a4d5613c4dc6",
                            "lessThan": "0c027c2bad7f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a4d5613c4dc6",
                            "lessThan": "9f7ddc222cae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a4d5613c4dc6",
                            "lessThan": "fb3a122a9786",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a4d5613c4dc6",
                            "lessThan": "0c66c6f4e21c",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm/mm/flush.c"
                    ],
                    "versions": [
                        {
                            "version": "5.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.14",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.6.24",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.7.12",
                            "lessThanOrEqual": "6.7.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.8.3",
                            "lessThanOrEqual": "6.8.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.9",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0c027c2bad7f5111c51a358b5d392e1a695dabff"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9f7ddc222cae8254e93d5c169a8ae11a49d912a7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fb3a122a978626b33de3367ee1762da934c0f512"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0c66c6f4e21cb22220cbd8821c5c73fc157d20dc"
                }
            ],
            "title": "ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses",
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                                "timestamp": "2024-06-17T17:40:49.744241Z",
                                "id": "CVE-2024-26947",
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                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T00:21:05.505Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
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