CVE-2023-52617

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Otherwise the last ref would vanish with the\ntrailing put_device(), just before return.\n\nAt that later point in time, the devm cleanup has already removed the\nstdev->mmio_mrpc mapping. Also, the stdev->pdev reference was not a counted\none. Therefore, in DMA mode, the iowrite32() in stdev_release() will cause\na fatal page fault, and the subsequent dma_free_coherent(), if reached,\nwould pass a stale &stdev->pdev->dev pointer.\n\nFix by moving MRPC DMA shutdown into switchtec_pci_remove(), after\nstdev_kill(). Counting the stdev->pdev ref is now optional, but may prevent\nfuture accidents.\n\nReproducible via the script at\nhttps://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/switch/switchtec.c"], "versions": [{"version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "d8c293549946ee5078ed0ab77793cec365559355", "status": "affected", "versionType": "git"}, {"version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "4a5d0528cf19dbf060313dffbe047bc11c90c24c", "status": "affected", "versionType": "git"}, {"version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8", "status": "affected", "versionType": "git"}, {"version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "1d83c85922647758c1f1e4806a4c5c3cf591a20a", 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"shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:18.651Z"}}], "cna": {"title": "PCI: switchtec: Fix stdev_release() crash after surprise hot remove", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "d8c293549946ee5078ed0ab77793cec365559355", "versionType": "git"}, {"status": "affected", "version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "4a5d0528cf19dbf060313dffbe047bc11c90c24c", "versionType": "git"}, {"status": "affected", "version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8", "versionType": "git"}, {"status": "affected", "version": "f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35", "lessThan": "1d83c85922647758c1f1e4806a4c5c3cf591a20a", "versionType": "git"}, {"status": "affected", "version": 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The call\nto stdev_release() then happens during close or exit, at a point way past\nswitchtec_pci_remove(). Otherwise the last ref would vanish with the\ntrailing put_device(), just before return.\n\nAt that later point in time, the devm cleanup has already removed the\nstdev->mmio_mrpc mapping. Also, the stdev->pdev reference was not a counted\none. Therefore, in DMA mode, the iowrite32() in stdev_release() will cause\na fatal page fault, and the subsequent dma_free_coherent(), if reached,\nwould pass a stale &stdev->pdev->dev pointer.\n\nFix by moving MRPC DMA shutdown into switchtec_pci_remove(), after\nstdev_kill(). Counting the stdev->pdev ref is now optional, but may prevent\nfuture accidents.\n\nReproducible via the script at\nhttps://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.269", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.210", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.149", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.77", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.16", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.7.4", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.8", "versionStartIncluding": "5.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-05T10:16:39.893Z"}}}, "cveMetadata": {"cveId": "CVE-2023-52617", "state": "PUBLISHED", "dateUpdated": "2026-01-05T10:16:39.893Z", "dateReserved": "2024-03-06T09:52:12.089Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-03-18T10:19:04.651Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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The call\nto stdev_release() then happens during close or exit, at a point way past\nswitchtec_pci_remove(). Otherwise the last ref would vanish with the\ntrailing put_device(), just before return.\n\nAt that later point in time, the devm cleanup has already removed the\nstdev->mmio_mrpc mapping. Also, the stdev->pdev reference was not a counted\none. Therefore, in DMA mode, the iowrite32() in stdev_release() will cause\na fatal page fault, and the subsequent dma_free_coherent(), if reached,\nwould pass a stale &stdev->pdev->dev pointer.\n\nFix by moving MRPC DMA shutdown into switchtec_pci_remove(), after\nstdev_kill(). Counting the stdev->pdev ref is now optional, but may prevent\nfuture accidents.\n\nReproducible via the script at\nhttps://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: switchtec: corrige el bloqueo de stdev_release() despu\u00e9s de una eliminaci\u00f3n sorpresa en caliente. Puede ocurrir una eliminaci\u00f3n en caliente del dispositivo PCI mientras stdev->cdev se mantiene abierto. La llamada a stdev_release() ocurre durante el cierre o la salida, en un punto mucho m\u00e1s all\u00e1 de switchtec_pci_remove(). De lo contrario, la \u00faltima referencia desaparecer\u00eda con el put_device() final, justo antes del retorno. En ese momento posterior, la limpieza devm ya elimin\u00f3 la asignaci\u00f3n stdev->mmio_mrpc. Adem\u00e1s, la referencia stdev->pdev no se contaba. Por lo tanto, en modo DMA, iowrite32() en stdev_release() causar\u00e1 un error de p\u00e1gina fatal, y el dma_free_coherent() posterior, si se alcanza, pasar\u00eda un puntero &stdev->pdev->dev obsoleto. Para solucionarlo, mueva el apagado de MRPC DMA a switchtec_pci_remove(), despu\u00e9s de stdev_kill(). Contar stdev->pdev ref ahora es opcional, pero puede evitar accidentes futuros. Reproducible a trav\u00e9s del script en https://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com"}], "id": "CVE-2023-52617", "lastModified": "2026-06-17T06:43:10.370", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52617", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-10T20:25:20.462363Z", "version": "2.0.3"}}]}, "published": "2024-03-18T11:15:09.057", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0233b836312e39a3c763fb53512b3fa455b473b3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d83c85922647758c1f1e4806a4c5c3cf591a20a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4a5d0528cf19dbf060313dffbe047bc11c90c24c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d8c293549946ee5078ed0ab77793cec365559355"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/df25461119d987b8c81d232cfe4411e91dcabe66"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e129c7fa7070fbce57feb0bfc5eaa65eef44b693"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0233b836312e39a3c763fb53512b3fa455b473b3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d83c85922647758c1f1e4806a4c5c3cf591a20a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4a5d0528cf19dbf060313dffbe047bc11c90c24c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d8c293549946ee5078ed0ab77793cec365559355"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/df25461119d987b8c81d232cfe4411e91dcabe66"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e129c7fa7070fbce57feb0bfc5eaa65eef44b693"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-459"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: PCI: switchtec: Fix stdev_release() crash after surprise hot remove", "id": "2270088", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2270088"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nPCI: switchtec: Fix stdev_release() crash after surprise hot remove\nA PCI device hot removal may occur while stdev->cdev is held open. The call\nto stdev_release() then happens during close or exit, at a point way past\nswitchtec_pci_remove(). Otherwise the last ref would vanish with the\ntrailing put_device(), just before return.\nAt that later point in time, the devm cleanup has already removed the\nstdev->mmio_mrpc mapping. Also, the stdev->pdev reference was not a counted\none. Therefore, in DMA mode, the iowrite32() in stdev_release() will cause\na fatal page fault, and the subsequent dma_free_coherent(), if reached,\nwould pass a stale &stdev->pdev->dev pointer.\nFix by moving MRPC DMA shutdown into switchtec_pci_remove(), after\nstdev_kill(). Counting the stdev->pdev ref is now optional, but may prevent\nfuture accidents.\nReproducible via the script at\nhttps://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com", "A flaw was found in the Linux Kernel that may result in a stdev_release() crash after a surprise hot remove."], "name": "CVE-2023-52617", "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": "2024-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52617\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52617\nhttps://lore.kernel.org/linux-cve-announce/20240318102117.2839904-7-lee@kernel.org/T"], "threat_severity": "Moderate"}

{}