{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90192",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.792Z",
        "datePublished": "2026-09-17T16:07:12.995Z",
        "dateUpdated": "2026-10-19T08:59:28.843Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:59:28.843Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: qcom-cpucp: handle NULL data in send_data callback\n\nmailbox_clear_channel() calls mbox_send_message() with NULL data to\nnotify the remote side that the RX channel has been cleared.\nqcom_cpucp_mbox_send_data() blindly dereferenced the data pointer,\ncausing a NULL pointer dereference kernel panic when invoked from\nthis path under PREEMPT_RT.\n\nAdd an explicit NULL check and return early without writing to the\nTX register, which is the correct behaviour for a channel-clear\nnotification."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/mailbox/qcom-cpucp-mbox.c"
                    ],
                    "versions": [
                        {
                            "version": "0e2a9a03106cd5fa0dbc9047675e7645c55e2669",
                            "lessThan": "3d11d2a6c9a10de287e0f1b53a5e65d16afe2760",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0e2a9a03106cd5fa0dbc9047675e7645c55e2669",
                            "lessThan": "413b0b94d6d06b8d49735280e86a01dac90cf177",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0e2a9a03106cd5fa0dbc9047675e7645c55e2669",
                            "lessThan": "b3d73e7440e0c40644285be1bda349cdf90122d8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0e2a9a03106cd5fa0dbc9047675e7645c55e2669",
                            "lessThan": "fc4f2f99530298a1739226947aa76525142d421d",
                            "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/mailbox/qcom-cpucp-mbox.c"
                    ],
                    "versions": [
                        {
                            "version": "6.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.11",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3d11d2a6c9a10de287e0f1b53a5e65d16afe2760"
                },
                {
                    "url": "https://git.kernel.org/stable/c/413b0b94d6d06b8d49735280e86a01dac90cf177"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b3d73e7440e0c40644285be1bda349cdf90122d8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fc4f2f99530298a1739226947aa76525142d421d"
                }
            ],
            "title": "mailbox: qcom-cpucp: handle NULL data in send_data callback",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}