{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98094",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:19:56.076Z",
        "datePublished": "2026-09-25T10:24:25.889Z",
        "dateUpdated": "2026-10-19T09:13:46.321Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:13:46.321Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: fbtft: make dirty_lock IRQ-safe\n\nfbtft_mkdirty() can be reached from the fbcon rendering path while\nprocessing printk() in hardirq context. Meanwhile, dirty_lock is also\ntaken by fbtft_deferred_io() in workqueue context with local interrupts\nenabled.\n\nLockdep reports a possible IRQ lock inversion involving dirty_lock and\nconsole_owner. A hardirq can interrupt a CPU holding dirty_lock and\nenter the console rendering path, which can attempt to acquire\ndirty_lock again.\n\nThe following lockdep report was observed on an RK3566 system with\nCONFIG_PROVE_LOCKING enabled:\n\n  WARNING: possible irq lock inversion dependency detected\n  swapper/2/0 just changed the state of lock:\n  (console_owner){-...}-{0:0}\n  but this lock took another, HARDIRQ-unsafe lock in the past:\n  (&par->dirty_lock){+.+.}-{2:2}\n\n  CPU0                    CPU1\n  ----                    ----\n  lock(&par->dirty_lock);\n                         local_irq_disable();\n                         lock(console_owner);\n                         lock(&par->dirty_lock);\n  <Interrupt>\n    lock(console_owner);\n\n  *** DEADLOCK ***\n\nUse spin_lock_irqsave() for fbtft_mkdirty() and spin_lock_irq() for\nfbtft_deferred_io(). They only access the dirty line range, so the\nIRQ-off regions remain short."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/staging/fbtft/fbtft-core.c"
                    ],
                    "versions": [
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "0843298b159599ee7bc6d14800efdb4bc7349706",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "a323066337ed85c38decfc7f6bbf42f27605dff1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "f2451e18826eb6a33ea51419f39bdd2eb99fa1ea",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "10cc145b873670438d3b105133dffdae70822db6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "2a609e29efbba79f9abd68c4ec8a2bd7ecf291e7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "f0c869df2c33793c8828acaab3e4a5e0176f9f00",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "dcb48fde8003492256dee45815144aa5ed26ce7c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c296d5f9957c03994a699d6739c27d4581a9f6c7",
                            "lessThan": "f576944a59f31bcffff121117ebf452c5dd162b7",
                            "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/staging/fbtft/fbtft-core.c"
                    ],
                    "versions": [
                        {
                            "version": "4.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "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": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.0",
                                    "versionEndExcluding": "5.10.271"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.0",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0843298b159599ee7bc6d14800efdb4bc7349706"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a323066337ed85c38decfc7f6bbf42f27605dff1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f2451e18826eb6a33ea51419f39bdd2eb99fa1ea"
                },
                {
                    "url": "https://git.kernel.org/stable/c/10cc145b873670438d3b105133dffdae70822db6"
                },
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                    "url": "https://git.kernel.org/stable/c/2a609e29efbba79f9abd68c4ec8a2bd7ecf291e7"
                },
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                    "url": "https://git.kernel.org/stable/c/f0c869df2c33793c8828acaab3e4a5e0176f9f00"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dcb48fde8003492256dee45815144aa5ed26ce7c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f576944a59f31bcffff121117ebf452c5dd162b7"
                }
            ],
            "title": "staging: fbtft: make dirty_lock IRQ-safe",
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}