{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50656",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-08T23:57:43.372Z",
        "datePublished": "2025-12-09T00:00:31.691Z",
        "dateUpdated": "2026-05-11T19:23:05.347Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:23:05.347Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Clear nfc_target before being used\n\nFix a slab-out-of-bounds read that occurs in nla_put() called from\nnfc_genl_send_target() when target->sensb_res_len, which is duplicated\nfrom an nfc_target in pn533, is too large as the nfc_target is not\nproperly initialized and retains garbage values. Clear nfc_targets with\nmemset() before they are used.\n\nFound by a modified version of syzkaller.\n\nBUG: KASAN: slab-out-of-bounds in nla_put\nCall Trace:\n memcpy\n nla_put\n nfc_genl_dump_targets\n genl_lock_dumpit\n netlink_dump\n __netlink_dump_start\n genl_family_rcv_msg_dumpit\n genl_rcv_msg\n netlink_rcv_skb\n genl_rcv\n netlink_unicast\n netlink_sendmsg\n sock_sendmsg\n ____sys_sendmsg\n ___sys_sendmsg\n __sys_sendmsg\n do_syscall_64"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nfc/pn533/pn533.c"
                    ],
                    "versions": [
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "9da4a0411f3455e3885831d0758bee3e3d565bbc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "61a7e15d55fae329a245535c3bac494e401005b8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "bef2f478513e7367ef3b05441f6afca981de29be",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "8bddef54cbe9ede5ac7478f1e1e968fcfe7e6f03",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "aea9e64dec2cc6cd742e07ecd4e6236fc76b389b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "aae9c24ebd901f482e6c88b6f9e0c80dc5b536d6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "755019e37815a66bb0a23893debbd3dd640ccbd3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "e491285b4d08884b622638be8e4961eb43b0af64",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "361f3cb7f9cfdb82c80926d0e7843c098c034545",
                            "lessThan": "9f28157778ede0d4f183f7ab3b46995bb400abbe",
                            "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/nfc/pn533/pn533.c"
                    ],
                    "versions": [
                        {
                            "version": "3.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.3",
                            "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": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "4.9.337"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "4.14.303"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "4.19.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "5.4.229"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "5.10.163"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "5.15.86"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.0.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.1.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/9da4a0411f3455e3885831d0758bee3e3d565bbc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/61a7e15d55fae329a245535c3bac494e401005b8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bef2f478513e7367ef3b05441f6afca981de29be"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8bddef54cbe9ede5ac7478f1e1e968fcfe7e6f03"
                },
                {
                    "url": "https://git.kernel.org/stable/c/aea9e64dec2cc6cd742e07ecd4e6236fc76b389b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/aae9c24ebd901f482e6c88b6f9e0c80dc5b536d6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/755019e37815a66bb0a23893debbd3dd640ccbd3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e491285b4d08884b622638be8e4961eb43b0af64"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9f28157778ede0d4f183f7ab3b46995bb400abbe"
                }
            ],
            "title": "nfc: pn533: Clear nfc_target before being used",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}