{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-10T18:59:31.582","vulnerabilities":[{"cve":{"id":"CVE-2024-26806","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-04-04T09:15:09.333","lastModified":"2025-03-27T21:30:21.837","vulnStatus":"Analyzed","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 suspensión en todo el sistema desde los ganchos PM en tiempo de ejecución 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 está 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 está tomado (en la devolución de llamada ->exec_op(), donde se incrementa el recuento de uso). - No permitiría todas las operaciones una vez que el dispositivo se autosuspenda. Aquí hay un breve árbol 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) ..."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-667"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.7.9","matchCriteriaId":"1C538467-EDA0-4A9A-82EB-2925DE9FF827"},{"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"}]}]}],"references":[{"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":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","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","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}