CVE-2025-23138

{"id": "CVE-2025-23138", "cveTags": [], "metrics": {"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}]}, "published": "2025-04-16T15:16:08.163", "references": [{"url": "https://git.kernel.org/stable/c/205028ebba838938d3b264dda1d0708fa7fe1ade", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2d680b988656bb556c863d8b46d9b9096842bf3d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/471c89b7d4f58bd6082f7c1fe14d4ca15c7f1284", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/56ec918e6c86c1536870e4373e91eddd0c44245f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6dafa27764183738dc5368b669b71e3d0d154f12", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8658c75343ed00e5e154ebbe24335f51ba8db547", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d40e3537265dea9e3c33021874437ff26dc18787", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f13abc1e8e1a3b7455511c4e122750127f6bc9b0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatch_queue: fix pipe accounting mismatch\n\nCurrently, watch_queue_set_size() modifies the pipe buffers charged to\nuser->pipe_bufs without updating the pipe->nr_accounted on the pipe\nitself, due to the if (!pipe_has_watch_queue()) test in\npipe_resize_ring(). This means that when the pipe is ultimately freed,\nwe decrement user->pipe_bufs by something other than what than we had\ncharged to it, potentially leading to an underflow. This in turn can\ncause subsequent too_many_pipe_buffers_soft() tests to fail with -EPERM.\n\nTo remedy this, explicitly account for the pipe usage in\nwatch_queue_set_size() to match the number set via account_pipe_buffers()\n\n(It's unclear why watch_queue_set_size() does not update nr_accounted;\nit may be due to intentional overprovisioning in watch_queue_set_size()?)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: watch_queue: correcci\u00f3n de la discrepancia en la contabilidad de la tuber\u00eda. Actualmente, watch_queue_set_size() modifica los b\u00faferes de la tuber\u00eda cargados a user->pipe_bufs sin actualizar pipe->nr_accounted en la propia tuber\u00eda, debido a la prueba if (!pipe_has_watch_queue()) en pipe_resize_ring(). Esto significa que, cuando la tuber\u00eda se libera finalmente, se decrementa user->pipe_bufs en un valor distinto al que se le hab\u00eda cargado, lo que podr\u00eda provocar un desbordamiento. Esto, a su vez, puede provocar que las pruebas too_many_pipe_buffers_soft() posteriores fallen con -EPERM. Para remediar esto, tenga en cuenta expl\u00edcitamente el uso de la tuber\u00eda en watch_queue_set_size() para que coincida con el n\u00famero establecido mediante account_pipe_buffers() (no est\u00e1 claro por qu\u00e9 watch_queue_set_size() no actualiza nr_accounted; puede deberse a un exceso de aprovisionamiento intencional en watch_queue_set_size())."}], "lastModified": "2025-11-04T17:00:09.103", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE31589F-CBA5-4F60-B1AA-E4904CB2A288", "versionEndExcluding": "5.10.236", "versionStartIncluding": "5.10.210"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A06091B4-80BD-47DF-AEBD-B80A5F764F1F", "versionEndExcluding": "5.15.180", "versionStartIncluding": "5.15.149"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69294568-B094-4660-8B73-AC8744D927ED", "versionEndExcluding": "6.1.134", "versionStartIncluding": "6.1.76"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9C84DE74-3A1D-4787-88FA-90ECCC77492B", "versionEndExcluding": "6.6.87", "versionStartIncluding": "6.6.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9DF3E448-0A86-4758-A423-9A12008EF47A", "versionEndExcluding": "6.12.23", "versionStartIncluding": "6.7.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7E864B0-8C00-4679-BA55-659B4C9C3AD3", "versionEndExcluding": "6.13.11", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0", "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.14"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}