{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50010",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-06-18T10:57:27.388Z",
        "datePublished": "2025-06-18T11:01:15.030Z",
        "dateUpdated": "2026-05-11T19:11:03.527Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:11:03.527Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: i740fb: Check the argument of i740_calc_vclk()\n\nSince the user can control the arguments of the ioctl() from the user\nspace, under special arguments that may result in a divide-by-zero bug.\n\nIf the user provides an improper 'pixclock' value that makes the argumet\nof i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a\ndivide-by-zero bug in:\n    drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX)));\n\nThe following log can reveal it:\n\ndivide error: 0000 [#1] PREEMPT SMP KASAN PTI\nRIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline]\nRIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline]\nRIP: 0010:i740fb_set_par+0x163f/0x3b70 drivers/video/fbdev/i740fb.c:742\nCall Trace:\n fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1034\n do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1110\n fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1189\n\nFix this by checking the argument of i740_calc_vclk() first."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/video/fbdev/i740fb.c"
                    ],
                    "versions": [
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "59cefb583c984c0da8cf21a4c57d26d5a20dff5c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "656689cb03ada4650016c153346939a1c334b1ae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "d2d375eb68b4b8de6ea7460483a26fa9de56b443",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "2b7f559152a33c55f51b569b22efbe5e24886798",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "4b20c61365140d432dee7da7aa294215e7b900d9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "e740e787f06671455b59d1e498c9945f7b4e7b3b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "f350812e2d15278f1d867eeb997407782234fb3c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5350c65f4f15bbc111ffa629130d3f32cdd4ccf6",
                            "lessThan": "40bf722f8064f50200b8c4f8946cd625b441dda9",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/video/fbdev/i740fb.c"
                    ],
                    "versions": [
                        {
                            "version": "3.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.326",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.291",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.256",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.211",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.138",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.63",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19.4",
                            "lessThanOrEqual": "5.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
                                    "versionEndExcluding": "4.9.326"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
                                    "versionEndExcluding": "4.14.291"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
                                    "versionEndExcluding": "4.19.256"
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
                                    "versionEndExcluding": "5.4.211"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
                                    "versionEndExcluding": "5.10.138"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
                                    "versionEndExcluding": "5.19.4"
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                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.4",
                                    "versionEndExcluding": "6.0"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/59cefb583c984c0da8cf21a4c57d26d5a20dff5c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/656689cb03ada4650016c153346939a1c334b1ae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d2d375eb68b4b8de6ea7460483a26fa9de56b443"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2b7f559152a33c55f51b569b22efbe5e24886798"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4b20c61365140d432dee7da7aa294215e7b900d9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e740e787f06671455b59d1e498c9945f7b4e7b3b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f350812e2d15278f1d867eeb997407782234fb3c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/40bf722f8064f50200b8c4f8946cd625b441dda9"
                }
            ],
            "title": "video: fbdev: i740fb: Check the argument of i740_calc_vclk()",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}