CVE-2024-26806

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/spi/spi-cadence-quadspi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "041562ebc4759c9932b59a06527f8753b86da365", "status": "affected", "version": "0578a6dbfe7514db7134501cf93acc21cf13e479", "versionType": "git"}, {"lessThan": "959043afe53ae80633e810416cee6076da6e91c6", "status": "affected", "version": "0578a6dbfe7514db7134501cf93acc21cf13e479", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/spi/spi-cadence-quadspi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.7"}, {"lessThan": "6.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.7.*", "status": "unaffected", "version": "6.7.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1C538467-EDA0-4A9A-82EB-2925DE9FF827", "versionEndExcluding": "6.7.9", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*", "matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*", "matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*", "matchCriteriaId": "F02056A5-B362-4370-9FF8-6F0BD384D520", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*", "matchCriteriaId": "62075ACE-B2A0-4B16-829D-B3DA5AE5CC41", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*", "matchCriteriaId": "A780F817-2A77-4130-A9B7-5C25606314E3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc6:*:*:*:*:*:*", "matchCriteriaId": "AEB9199B-AB8F-4877-8964-E2BA95B5F15C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks\n\nThe ->runtime_suspend() and ->runtime_resume() callbacks are not\nexpected to call spi_controller_suspend() and spi_controller_resume().\nRemove calls to those in the cadence-qspi driver.\n\nThose helpers have two roles currently:\n - They stop/start the queue, including dealing with the kworker.\n - They toggle the SPI controller SPI_CONTROLLER_SUSPENDED flag. It\n requires acquiring ctlr->bus_lock_mutex.\n\nStep one is irrelevant because cadence-qspi is not queued. Step two\nhowever has two implications:\n - A deadlock occurs, because ->runtime_resume() is called in a context\n where the lock is already taken (in the ->exec_op() callback, where\n the usage count is incremented).\n - It would disallow all operations once the device is auto-suspended.\n\nHere is a brief call tree highlighting the mutex deadlock:\n\nspi_mem_exec_op()\n ...\n spi_mem_access_start()\n mutex_lock(&ctlr->bus_lock_mutex)\n\n cqspi_exec_mem_op()\n pm_runtime_resume_and_get()\n cqspi_resume()\n spi_controller_resume()\n mutex_lock(&ctlr->bus_lock_mutex)\n ...\n\n spi_mem_access_end()\n mutex_unlock(&ctlr->bus_lock_mutex)\n ..."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: cadence-qspi: elimina las llamadas auxiliares de suspensi\u00f3n en todo el sistema desde los ganchos PM en tiempo de ejecuci\u00f3n No se espera que las devoluciones de llamada ->runtime_suspend() y ->runtime_resume() llamen a spi_controller_suspend() y spi_controller_resume(). Elimina llamadas a aquellos en el controlador cadence-qspi. Esos ayudantes tienen actualmente dos funciones: - Detienen/inician la cola, incluido el trato con el kworker. - Alternan el indicador SPI_CONTROLLER_SUSPENDED del controlador SPI. Requiere adquirir ctlr->bus_lock_mutex. El primer paso es irrelevante porque cadence-qspi no est\u00e1 en cola. Sin embargo, el segundo paso tiene dos implicaciones: - Se produce un punto muerto, porque ->runtime_resume() se llama en un contexto donde el bloqueo ya est\u00e1 tomado (en la devoluci\u00f3n de llamada ->exec_op(), donde se incrementa el recuento de uso). - No permitir\u00eda todas las operaciones una vez que el dispositivo se autosuspenda. Aqu\u00ed hay un breve \u00e1rbol de llamadas que resalta el interbloqueo mutex: spi_mem_exec_op() ... spi_mem_access_start() mutex_lock(&ctlr->bus_lock_mutex) cqspi_exec_mem_op() pm_runtime_resume_and_get() cqspi_resume() spi_controller_resume() mutex_lock(&ctlr->bus_lock_mutex) ... spi_mem _acceso_end () mutex_unlock(&ctlr->bus_lock_mutex) ..."}], "id": "CVE-2024-26806", "lastModified": "2026-06-17T07:18:23.847", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-26806", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-04-05T17:28:20.913168Z", "version": "2.0.3"}}]}, "published": "2024-04-04T09:15:09.333", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/041562ebc4759c9932b59a06527f8753b86da365"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/959043afe53ae80633e810416cee6076da6e91c6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/041562ebc4759c9932b59a06527f8753b86da365"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/959043afe53ae80633e810416cee6076da6e91c6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks", "id": "2273419", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273419"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nspi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks\nThe ->runtime_suspend() and ->runtime_resume() callbacks are not\nexpected to call spi_controller_suspend() and spi_controller_resume().\nRemove calls to those in the cadence-qspi driver.\nThose helpers have two roles currently:\n- They stop/start the queue, including dealing with the kworker.\n- They toggle the SPI controller SPI_CONTROLLER_SUSPENDED flag. It\nrequires acquiring ctlr->bus_lock_mutex.\nStep one is irrelevant because cadence-qspi is not queued. Step two\nhowever has two implications:\n- A deadlock occurs, because ->runtime_resume() is called in a context\nwhere the lock is already taken (in the ->exec_op() callback, where\nthe usage count is incremented).\n- It would disallow all operations once the device is auto-suspended.\nHere is a brief call tree highlighting the mutex deadlock:\nspi_mem_exec_op()\n...\nspi_mem_access_start()\nmutex_lock(&ctlr->bus_lock_mutex)\ncqspi_exec_mem_op()\npm_runtime_resume_and_get()\ncqspi_resume()\nspi_controller_resume()\nmutex_lock(&ctlr->bus_lock_mutex)\n...\nspi_mem_access_end()\nmutex_unlock(&ctlr->bus_lock_mutex)\n...", "A vulnerability was found in the spi: cadence-qspi driver in the Linux kernel, where improper system-wide suspend helper calls were made in the runtime Power Management (PM) hooks. This issue could lead to unintended behavior during system suspend/resume cycles."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-26806", "package_state": [{"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": "2024-04-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26806\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26806\nhttps://lore.kernel.org/linux-cve-announce/2024040404-CVE-2024-26806-4644@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}

{}