{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43173",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.991Z",
        "datePublished": "2026-05-06T11:27:48.097Z",
        "dateUpdated": "2026-06-01T16:15:27.758Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-01T16:15:27.758Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: xscale: Check for PTP support properly\n\nIn ixp4xx_get_ts_info() ixp46x_ptp_find() is called\nunconditionally despite this feature only existing on\nixp46x, leading to the following splat from tcpdump:\n\nroot@OpenWrt:~# tcpdump -vv -X -i eth0\n(...)\nUnable to handle kernel NULL pointer dereference at virtual address\n  00000238 when read\n(...)\nCall trace:\n ptp_clock_index from ixp46x_ptp_find+0x1c/0x38\n ixp46x_ptp_find from ixp4xx_get_ts_info+0x4c/0x64\n ixp4xx_get_ts_info from __ethtool_get_ts_info+0x90/0x108\n __ethtool_get_ts_info from __dev_ethtool+0xa00/0x2648\n __dev_ethtool from dev_ethtool+0x160/0x234\n dev_ethtool from dev_ioctl+0x2cc/0x460\n dev_ioctl from sock_ioctl+0x1ec/0x524\n sock_ioctl from sys_ioctl+0x51c/0xa94\n sys_ioctl from ret_fast_syscall+0x0/0x44\n (...)\nSegmentation fault\n\nCheck for ixp46x in ixp46x_ptp_find() before trying to set up\nPTP to avoid this.\n\nTo avoid altering the returned error code from ixp4xx_hwtstamp_set()\nwhich before this patch was -EOPNOTSUPP, we return -EOPNOTSUPP\nfrom ixp4xx_hwtstamp_set() if ixp46x_ptp_find() fails no matter\nthe error code. The helper function ixp46x_ptp_find() helper\nreturns -ENODEV."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/xscale/ixp4xx_eth.c",
                        "drivers/net/ethernet/xscale/ptp_ixp46x.c"
                    ],
                    "versions": [
                        {
                            "version": "9055a2f591629b952910503e72ddae1371c44bf1",
                            "lessThan": "322437972f0a712767f6920ad34aba25f2e9b942",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9055a2f591629b952910503e72ddae1371c44bf1",
                            "lessThan": "21d1e80d0d6e7d0c3cd8b1e001ed1fa92fb9f3f5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9055a2f591629b952910503e72ddae1371c44bf1",
                            "lessThan": "2d74412dfd3621552a394d55cc3dd26a7cbf608e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9055a2f591629b952910503e72ddae1371c44bf1",
                            "lessThan": "cbecebd35909f6cd0f6fb773f0fb73da99e02f8c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9055a2f591629b952910503e72ddae1371c44bf1",
                            "lessThan": "594163ea88a03bdb412063af50fc7177ef3cbeae",
                            "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/net/ethernet/xscale/ixp4xx_eth.c",
                        "drivers/net/ethernet/xscale/ptp_ixp46x.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.128",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.75",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.16",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.6",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.15",
                                    "versionEndExcluding": "6.6.128"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.12.75"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.18.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.19.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/322437972f0a712767f6920ad34aba25f2e9b942"
                },
                {
                    "url": "https://git.kernel.org/stable/c/21d1e80d0d6e7d0c3cd8b1e001ed1fa92fb9f3f5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2d74412dfd3621552a394d55cc3dd26a7cbf608e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cbecebd35909f6cd0f6fb773f0fb73da99e02f8c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/594163ea88a03bdb412063af50fc7177ef3cbeae"
                }
            ],
            "title": "net: ethernet: xscale: Check for PTP support properly",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}