{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50272",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-15T13:58:00.975Z",
        "datePublished": "2025-09-15T14:21:08.534Z",
        "dateUpdated": "2026-05-11T19:16:07.161Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:16:07.161Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\n\nWei Chen reports a kernel bug as blew:\n\ngeneral protection fault, probably for non-canonical address\nKASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]\n...\nCall Trace:\n<TASK>\n__i2c_transfer+0x77e/0x1930 drivers/i2c/i2c-core-base.c:2109\ni2c_transfer+0x1d5/0x3d0 drivers/i2c/i2c-core-base.c:2170\ni2cdev_ioctl_rdwr+0x393/0x660 drivers/i2c/i2c-dev.c:297\ni2cdev_ioctl+0x75d/0x9f0 drivers/i2c/i2c-dev.c:458\nvfs_ioctl fs/ioctl.c:51 [inline]\n__do_sys_ioctl fs/ioctl.c:870 [inline]\n__se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fd834a8bded\n\nIn az6027_i2c_xfer(), if msg[i].addr is 0x99,\na null-ptr-deref will caused when accessing msg[i].buf.\nFor msg[i].len is 0 and msg[i].buf is null.\n\nFix this by checking msg[i].len in az6027_i2c_xfer()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/usb/dvb-usb/az6027.c"
                    ],
                    "versions": [
                        {
                            "version": "76f9a820c8672ada12ffa0903652c9e6f2429462",
                            "lessThan": "2b6a8a1a32746981044e7ab06649c804acb4068a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "76f9a820c8672ada12ffa0903652c9e6f2429462",
                            "lessThan": "c712d1ccbfb787620422b437a5b8fac0802547bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "lessThan": "7abfe467cd685f5da7ecb415441e45e3e4e2baa8",
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                            "lessThan": "8b256d23361c51aa4b7fdb71176c1ca50966fb39",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "76f9a820c8672ada12ffa0903652c9e6f2429462",
                            "lessThan": "559891d430e3f3a178040c4371ed419edbfa7d65",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "76f9a820c8672ada12ffa0903652c9e6f2429462",
                            "lessThan": "210fcf64be4db82c0e190e74b5111e4eef661a7a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "76f9a820c8672ada12ffa0903652c9e6f2429462",
                            "lessThan": "6fbc44731a4665cbe92a5090e9804a388a72214b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "76f9a820c8672ada12ffa0903652c9e6f2429462",
                            "lessThan": "6b60cf73a931af34b7a0a3f467a79d9fe0df2d70",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "76f9a820c8672ada12ffa0903652c9e6f2429462",
                            "lessThan": "0ed554fd769a19ea8464bb83e9ac201002ef74ad",
                            "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/media/usb/dvb-usb/az6027.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.34",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.34",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.337",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.303",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.270",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.229",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.163",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.86",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.16",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.2",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "4.9.337"
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                                {
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2b6a8a1a32746981044e7ab06649c804acb4068a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c712d1ccbfb787620422b437a5b8fac0802547bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7abfe467cd685f5da7ecb415441e45e3e4e2baa8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8b256d23361c51aa4b7fdb71176c1ca50966fb39"
                },
                {
                    "url": "https://git.kernel.org/stable/c/559891d430e3f3a178040c4371ed419edbfa7d65"
                },
                {
                    "url": "https://git.kernel.org/stable/c/210fcf64be4db82c0e190e74b5111e4eef661a7a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6fbc44731a4665cbe92a5090e9804a388a72214b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6b60cf73a931af34b7a0a3f467a79d9fe0df2d70"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0ed554fd769a19ea8464bb83e9ac201002ef74ad"
                }
            ],
            "title": "media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
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}