CVE-2025-71285

{"id": "CVE-2025-71285", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-71285", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T21:15:58.206706Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "227fee5fc99eeb74d43bf68832f6d59d30ac07d8", "lessThan": "b7874c74bcc224fd586679e51b9ded65f66edc2a", "versionType": "git"}, {"status": "affected", "version": "227fee5fc99eeb74d43bf68832f6d59d30ac07d8", "lessThan": "ab0bdaf7a7f4f83b947193563f2a483ab87f72db", "versionType": "git"}, {"status": "affected", "version": "227fee5fc99eeb74d43bf68832f6d59d30ac07d8", "lessThan": "8e130ff078892fa5a6bf272ced7565af58d98a85", "versionType": "git"}, {"status": "affected", "version": "227fee5fc99eeb74d43bf68832f6d59d30ac07d8", "lessThan": "7bdff9b9b0c65ac7105416fe3a40686832515e20", "versionType": "git"}, {"status": "affected", "version": "227fee5fc99eeb74d43bf68832f6d59d30ac07d8", "lessThan": "8c464e00e0754e016816b1860fa9592dcad80eb2", "versionType": "git"}, {"status": "affected", "version": "227fee5fc99eeb74d43bf68832f6d59d30ac07d8", "lessThan": "51731792a25cb312ca94cdccfa139eb46de1b2ef", "versionType": "git"}, {"status": "affected", "version": "c682fb70a7dfc25b848a4ff3a385b0471b470606", "versionType": "git"}, {"status": "affected", "version": "5.15.63", "lessThan": "5.16", "versionType": "semver"}], "programFiles": ["drivers/accel/qaic/mhi_controller.c", "drivers/bus/mhi/host/pci_generic.c", "drivers/net/wireless/ath/ath11k/mhi.c", "drivers/net/wireless/ath/ath12k/mhi.c", "net/qrtr/mhi.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.17"}, {"status": "unaffected", "version": "0", "lessThan": "5.17", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.114", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.17", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.6", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/accel/qaic/mhi_controller.c", "drivers/bus/mhi/host/pci_generic.c", "drivers/net/wireless/ath/ath11k/mhi.c", "drivers/net/wireless/ath/ath12k/mhi.c", "net/qrtr/mhi.c"], "defaultStatus": "affected"}]}], "published": "2026-05-06T12:16:27.613", "references": [{"url": "https://git.kernel.org/stable/c/51731792a25cb312ca94cdccfa139eb46de1b2ef", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7bdff9b9b0c65ac7105416fe3a40686832515e20", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8c464e00e0754e016816b1860fa9592dcad80eb2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8e130ff078892fa5a6bf272ced7565af58d98a85", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ab0bdaf7a7f4f83b947193563f2a483ab87f72db", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b7874c74bcc224fd586679e51b9ded65f66edc2a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: Drop the MHI auto_queue feature for IPCR DL channels\n\nMHI stack offers the 'auto_queue' feature, which allows the MHI stack to\nauto queue the buffers for the RX path (DL channel). Though this feature\nsimplifies the client driver design, it introduces race between the client\ndrivers and the MHI stack. For instance, with auto_queue, the 'dl_callback'\nfor the DL channel may get called before the client driver is fully probed.\nThis means, by the time the dl_callback gets called, the client driver's\nstructures might not be initialized, leading to NULL ptr dereference.\n\nCurrently, the drivers have to workaround this issue by initializing the\ninternal structures before calling mhi_prepare_for_transfer_autoqueue().\nBut even so, there is a chance that the client driver's internal code path\nmay call the MHI queue APIs before mhi_prepare_for_transfer_autoqueue() is\ncalled, leading to similar NULL ptr dereference. This issue has been\nreported on the Qcom X1E80100 CRD machines affecting boot.\n\nSo to properly fix all these races, drop the MHI 'auto_queue' feature\naltogether and let the client driver (QRTR) manage the RX buffers manually.\nIn the QRTR driver, queue the RX buffers based on the ring length during\nprobe and recycle the buffers in 'dl_callback' once they are consumed. This\nalso warrants removing the setting of 'auto_queue' flag from controller\ndrivers.\n\nCurrently, this 'auto_queue' feature is only enabled for IPCR DL channel.\nSo only the QRTR client driver requires the modification."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: qrtr: Eliminar la caracter\u00edstica 'auto_queue' de MHI para los canales DL de IPCR\n\nLa pila MHI ofrece la caracter\u00edstica 'auto_queue', que permite a la pila MHI encolar autom\u00e1ticamente los b\u00faferes para la ruta RX (canal DL). Aunque esta caracter\u00edstica simplifica el dise\u00f1o del controlador cliente, introduce una condici\u00f3n de carrera entre los controladores cliente y la pila MHI. Por ejemplo, con auto_queue, la 'dl_callback' para el canal DL puede ser llamada antes de que el controlador cliente est\u00e9 completamente sondeado. Esto significa que, para cuando se llama a la dl_callback, las estructuras del controlador cliente podr\u00edan no estar inicializadas, lo que lleva a una desreferencia de puntero NULL.\n\nActualmente, los controladores tienen que solucionar este problema inicializando las estructuras internas antes de llamar a mhi_prepare_for_transfer_autoqueue(). Pero aun as\u00ed, existe la posibilidad de que la ruta de c\u00f3digo interna del controlador cliente pueda llamar a las API de cola de MHI antes de que se llame a mhi_prepare_for_transfer_autoqueue(), lo que lleva a una desreferencia de puntero NULL similar. Este problema ha sido reportado en las m\u00e1quinas Qcom X1E80100 CRD afectando el arranque.\n\nAs\u00ed que para corregir adecuadamente todas estas condiciones de carrera, se elimina por completo la caracter\u00edstica 'auto_queue' de MHI y se deja que el controlador cliente (QRTR) gestione los b\u00faferes RX manualmente. En el controlador QRTR, se encolan los b\u00faferes RX bas\u00e1ndose en la longitud del anillo durante el sondeo y se reciclan los b\u00faferes en 'dl_callback' una vez que se consumen. Esto tambi\u00e9n justifica la eliminaci\u00f3n de la configuraci\u00f3n del indicador 'auto_queue' de los controladores del controlador.\n\nActualmente, esta caracter\u00edstica 'auto_queue' solo est\u00e1 habilitada para el canal DL de IPCR. As\u00ed que solo el controlador cliente QRTR requiere la modificaci\u00f3n."}], "lastModified": "2026-11-05T22:17:40.063", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "60ACBB16-9DB7-4B68-AF39-342F3BA4775E", "versionEndExcluding": "5.16", "versionStartIncluding": "5.15.63"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9E1D818B-7FC7-4E36-AC6B-517B11C9D765", "versionEndExcluding": "6.18.17", "versionStartIncluding": "5.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}