CVE-2026-31687

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held.\n\nThe latter was revealed by commit dc23806a7c47 (\"driver core: enforce\ndevice_lock for driver_match_device()\") leading to a potential deadlock\ncondition described in [1].\n\nAdditionally, the omap_mpuio_driver is never unregistered from the\ndriver core, even if the module is unloaded.\n\nHence, register the omap_mpuio_driver from the module initcall and\nunregister it in module_exit()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpio-omap.c"], "versions": [{"version": "11a78b7944963a8b052be46108d07a3ced9e2762", "lessThan": "57bcd3feffa79544c73a1a1872472389a391cc79", "status": "affected", "versionType": "git"}, {"version": "11a78b7944963a8b052be46108d07a3ced9e2762", "lessThan": "86588916e1887a5edb8a9161cd7ae81e47a7ed25", "status": "affected", "versionType": "git"}, {"version": "11a78b7944963a8b052be46108d07a3ced9e2762", 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{}

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"affected", "version": "6.6.125", "versionType": "semver"}, {"lessThan": "6.12.73", "status": "affected", "version": "6.12.72", "versionType": "semver"}, {"lessThan": "6.18.12", "status": "affected", "version": "6.18.11", "versionType": "semver"}, {"lessThan": "6.19.2", "status": "affected", "version": "6.19.1", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpio/gpio-omap.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.22"}, {"lessThan": "2.6.22", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.251", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.201", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.164", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.125", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.126", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.72", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.73", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.11", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.12", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": 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"matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*", "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: omap: do not register driver in probe()\n\nCommit 11a78b794496 (\"ARM: OMAP: MPUIO wake updates\") registers the\nomap_mpuio_driver from omap_mpuio_init(), which is called from\nomap_gpio_probe().\n\nHowever, it neither makes sense to register drivers from probe()\ncallbacks of other drivers, nor does the driver core allow registering\ndrivers with a device lock already being held.\n\nThe latter was revealed by commit dc23806a7c47 (\"driver core: enforce\ndevice_lock for driver_match_device()\") leading to a potential deadlock\ncondition described in [1].\n\nAdditionally, the omap_mpuio_driver is never unregistered from the\ndriver core, even if the module is unloaded.\n\nHence, register the omap_mpuio_driver from the module initcall and\nunregister it in module_exit()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ngpio: omap: no registrar controlador en probe()\n\nEl commit 11a78b794496 (\u2019ARM: OMAP: actualizaciones de activaci\u00f3n de MPUIO\u2019) registra el omap_mpuio_driver desde omap_mpuio_init(), que es llamado desde omap_gpio_probe().\n\nSin embargo, ni tiene sentido registrar controladores desde las retrollamadas de probe() de otros controladores, ni el n\u00facleo del controlador permite registrar controladores con un bloqueo de dispositivo ya mantenido.\n\nEsto \u00faltimo fue revelado por el commit dc23806a7c47 (\u2019n\u00facleo del controlador: forzar device_lock para driver_match_device()\u2019) lo que lleva a una posible condici\u00f3n de interbloqueo descrita en [1].\n\nAdem\u00e1s, el omap_mpuio_driver nunca es dado de baja del n\u00facleo del controlador, incluso si el m\u00f3dulo es descargado.\n\nPor lo tanto, registrar el omap_mpuio_driver desde la llamada de inicializaci\u00f3n del m\u00f3dulo y darlo de baja en module_exit()."}], "id": "CVE-2026-31687", "lastModified": "2026-11-11T23:10:00.263", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-04-27T18:16:54.143", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": 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{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/730e5ebff40c852e3ea57b71bf02a4b89c69435f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/86588916e1887a5edb8a9161cd7ae81e47a7ed25"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a29215961d833f4de33a09c3964d31ebc6083033"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a7fa9460b86f810913b6779461d0448e7c11214c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: gpio: omap: do not register driver in probe()", "id": "2463260", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463260"}, "csaw": false, "cwe": "CWE-833", "details": ["A flaw was found in the Linux kernel's OMAP General Purpose Input/Output (GPIO) driver. The omap_mpuio_driver is incorrectly registered from within the omap_gpio_probe() function while a device lock is already held. This can lead to a potential deadlock condition, which a local attacker could exploit to cause a system hang, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-31687", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31687\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31687\nhttps://lore.kernel.org/linux-cve-announce/2026042706-CVE-2026-31687-ce28@gregkh/T"]}

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