{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-45877",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.081Z",
        "datePublished": "2026-05-27T12:16:46.910Z",
        "dateUpdated": "2026-10-21T12:40:54.404Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:40:54.404Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients\n\nDuring a warm reset flow, the cl->device pointer may be NULL if the\nreset occurs while clients are still being enumerated. Accessing\ncl->device->reference_count without a NULL check leads to a kernel panic.\n\nThis issue was identified during multi-unit warm reboot stress clycles.\nAdd a defensive NULL check for cl->device to ensure stability under\nsuch intensive testing conditions.\n\nKASAN: null-ptr-deref in range [0000000000000000-0000000000000007]\nWorkqueue: ish_fw_update_wq fw_reset_work_fn\n\nCall Trace:\n ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp]\n ishtp_reset_handler+0x85/0x1a0 [intel_ishtp]\n fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hid/intel-ish-hid/ishtp/bus.c"
                    ],
                    "versions": [
                        {
                            "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
                            "lessThan": "cde7f709d1025dadfc52e903e43981c1644bd8bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
                            "lessThan": "0b605e8ce60698c27a26f512968a597fd620d2e8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
                            "lessThan": "feb4bcfd405282de60aba321f13a1272b30c5af4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
                            "lessThan": "272dac57caa981718e7188c80c703e7bb1998054",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
                            "lessThan": "56f7db581ee73af53cd512e00a6261a025bf1d58",
                            "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/hid/intel-ish-hid/ishtp/bus.c"
                    ],
                    "versions": [
                        {
                            "version": "4.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.75",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.14",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.4",
                            "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": "4.9",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "6.12.75"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "6.18.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
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                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
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                    ]
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/cde7f709d1025dadfc52e903e43981c1644bd8bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054"
                },
                {
                    "url": "https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58"
                }
            ],
            "title": "HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients",
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}