{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98749",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.368Z",
        "datePublished": "2026-10-18T15:47:34.347Z",
        "dateUpdated": "2026-10-21T12:56:24.499Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:56:24.499Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: max3100: shut down timer before freeing port\n\nmax3100_shutdown() stops the polling timer but returns early during\nsystem suspend. If the SPI device is unbound before resume, the serial\ncore does not call max3100_shutdown() again, so max3100_remove() frees\nthe port while the timer remains armed. max3100_timeout() may then\naccess the freed port and re-arm the timer.\n\nAdd final timer teardown to max3100_remove() and use\ntimer_shutdown_sync() to prevent a racing callback from re-arming it.\nAlso free the IRQ and destroy the workqueue there before freeing the\nport. Keep timer_delete_sync() in max3100_shutdown() so that a\nsubsequent open() can re-arm the timer.\n\nThe workqueue is created before request_irq() and destroyed on both\nrequest_irq() failure and normal shutdown. Its presence at remove thus\nidentifies the IRQ left registered when suspend bypasses shutdown.\n\nFree the IRQ before destroying the workqueue, in both\nmax3100_shutdown() and max3100_remove(), and cancel the pending work\nin between. free_irq() waits for a running interrupt handler to\nfinish and no new handler can start afterwards, so a racing handler\ncannot queue work on a workqueue that is being destroyed; the\nforce_end_work check in max3100_dowork() only narrows that window, as\na handler delayed between the check and queue_work() could still run\nafter the teardown has cleared the workqueue pointer. Cancelling the\nwork also keeps destroy_workqueue() from waiting on a queued work item\nin case remove() ever runs while the freezable workqueue is still\nfrozen, e.g. device removal during the resume window, before\nworkqueues are thawed.\n\nThis issue was found by an in-house static analysis tool."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/tty/serial/max3100.c"
                    ],
                    "versions": [
                        {
                            "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
                            "lessThan": "158a07da2da720f2f98b4bea129212c6805d8ee0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
                            "lessThan": "fb668620e3b163962dabe1a674725a07aa44ff4a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
                            "lessThan": "2c8614981d3e6e000427de0ab2426ab68274d850",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
                            "lessThan": "247b8f680876313586aed4d267bfcceddc2b4901",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
                            "lessThan": "db0949bbd06db0a75b4b1076f1e25194be7d956a",
                            "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/tty/serial/max3100.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.30",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.30",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.56",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.10",
                            "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": "2.6.30",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "6.18.56"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "7.2.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.30",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/158a07da2da720f2f98b4bea129212c6805d8ee0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fb668620e3b163962dabe1a674725a07aa44ff4a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2c8614981d3e6e000427de0ab2426ab68274d850"
                },
                {
                    "url": "https://git.kernel.org/stable/c/247b8f680876313586aed4d267bfcceddc2b4901"
                },
                {
                    "url": "https://git.kernel.org/stable/c/db0949bbd06db0a75b4b1076f1e25194be7d956a"
                }
            ],
            "title": "tty: serial: max3100: shut down timer before freeing port",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}