CVE-2026-23262

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If the queue count is increased, the NIC can write past\nthe end of the allocated stats region, causing memory corruption.\nIf the queue count is decreased, there is a gap between the driver\nand NIC stats, leading to incorrect stats reporting.\n\nThis change fixes the issue by allocating stats region with maximum\nsize, and the offset calculation for NIC stats is changed to match\nwith the calculation of the NIC."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/google/gve/gve_ethtool.c", "drivers/net/ethernet/google/gve/gve_main.c"], "versions": [{"version": "24aeb56f2d38edf1b324bdb4f8bc6faf9f0f540c", "lessThan": "f432f7613c220db32c2c6942420daf7b3f2e7d7e", "status": "affected", "versionType": "git"}, {"version": "24aeb56f2d38edf1b324bdb4f8bc6faf9f0f540c", "lessThan": "9d93332397405b62a3300b22d04ac65d990b91ff", "status": "affected", 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"cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*", "matchCriteriaId": "EB5B7DFC-C36B-45D8-922C-877569FDDF43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngve: Fix stats report corruption on queue count change\n\nThe driver and the NIC share a region in memory for stats reporting.\nThe NIC calculates its offset into this region based on the total size\nof the stats region and the size of the NIC's stats.\n\nWhen the number of queues is changed, the driver's stats region is\nresized. If the queue count is increased, the NIC can write past\nthe end of the allocated stats region, causing memory corruption.\nIf the queue count is decreased, there is a gap between the driver\nand NIC stats, leading to incorrect stats reporting.\n\nThis change fixes the issue by allocating stats region with maximum\nsize, and the offset calculation for NIC stats is changed to match\nwith the calculation of the NIC."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ngve: Correcci\u00f3n de la corrupci\u00f3n del informe de estad\u00edsticas al cambiar el recuento de colas\n\nEl controlador y la NIC comparten una regi\u00f3n en memoria para el informe de estad\u00edsticas.\nLa NIC calcula su desplazamiento en esta regi\u00f3n bas\u00e1ndose en el tama\u00f1o total\nde la regi\u00f3n de estad\u00edsticas y el tama\u00f1o de las estad\u00edsticas de la NIC.\n\nCuando se cambia el n\u00famero de colas, la regi\u00f3n de estad\u00edsticas del controlador se\nredimensiona. Si el recuento de colas se incrementa, la NIC puede escribir m\u00e1s all\u00e1\ndel final de la regi\u00f3n de estad\u00edsticas asignada, causando corrupci\u00f3n de memoria.\nSi el recuento de colas se disminuye, hay una brecha entre las estad\u00edsticas del controlador\ny de la NIC, lo que lleva a un informe de estad\u00edsticas incorrecto.\n\nEste cambio soluciona el problema asignando la regi\u00f3n de estad\u00edsticas con el tama\u00f1o\nm\u00e1ximo, y el c\u00e1lculo del desplazamiento para las estad\u00edsticas de la NIC se cambia para que\ncoincida con el c\u00e1lculo de la NIC."}], "id": "CVE-2026-23262", "lastModified": "2026-11-05T22:18:10.480", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23262", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T21:24:29.352898Z", "version": "2.0.3"}}]}, "published": "2026-03-18T18:16:24.770", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/11f8311f69e4c361717371b4901ff92daeb76e9c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b9ebcce0296e104a0d82a6b09d68564806158ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/837c662f47dac43efa1aef2dd433c6b4b4c073af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9d93332397405b62a3300b22d04ac65d990b91ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9fa0a755db3e1945fe00f73fe27d85ef6c8818b7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/df54838ab61826ecc1a562ffa5e280c3ab7289a7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f432f7613c220db32c2c6942420daf7b3f2e7d7e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: gve: Fix stats report corruption on queue count change", "id": "2448694", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448694"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2026-23262", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23262\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23262\nhttps://lore.kernel.org/linux-cve-announce/2026031820-CVE-2026-23262-a421@gregkh/T"], "threat_severity": "Moderate"}

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