{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T08:41:53.737","vulnerabilities":[{"cve":{"id":"CVE-2023-52439","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-02-20T21:15:08.213","lastModified":"2024-12-27T16:15:23.080","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nuio: Fix use-after-free in uio_open\n\ncore-1\t\t\t\tcore-2\n-------------------------------------------------------\nuio_unregister_device\t\tuio_open\n\t\t\t\tidev = idr_find()\ndevice_unregister(&idev->dev)\nput_device(&idev->dev)\nuio_device_release\n\t\t\t\tget_device(&idev->dev)\nkfree(idev)\nuio_free_minor(minor)\n\t\t\t\tuio_release\n\t\t\t\tput_device(&idev->dev)\n\t\t\t\tkfree(idev)\n-------------------------------------------------------\n\nIn the core-1 uio_unregister_device(), the device_unregister will kfree\nidev when the idev->dev kobject ref is 1. But after core-1\ndevice_unregister, put_device and before doing kfree, the core-2 may\nget_device. Then:\n1. After core-1 kfree idev, the core-2 will do use-after-free for idev.\n2. When core-2 do uio_release and put_device, the idev will be double\n   freed.\n\nTo address this issue, we can get idev atomic & inc idev reference with\nminor_lock."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: uio: corrige use-after-free en uio_open core-1 core-2 ------------------------------------------------------- uio_unregister_device uio_open idev = idr_find() device_unregister(&idev->dev) put_device(&idev->dev) uio_device_release get_device(&idev->dev) kfree(idev) uio_free_minor(minor) uio_release put_device(&idev->dev) kfree(idev) ------------------------------------------------------- In the core-1 uio_unregister_device(), the device_unregister se liberará idev cuando la referencia del objeto idev->dev kobject es 1. But after core-1 device_unregister, put_device and before doing kfree, the core-2 may get_device. Then: 1. After core-1 kfree idev, the core-2 will do use-after-free for idev. 2. When core-2 do uio_release and put_device, el idev se liberará dos veces. Para solucionar este problema, podemos obtener la referencia de idev atomic & inc idev con minor_lock."}],"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:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-415"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartExcluding":"4.18.0","versionEndExcluding":"4.19.306","matchCriteriaId":"5A94A44F-4F9A-4447-AF13-47B88B4CD211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20.0","versionEndExcluding":"5.4.268","matchCriteriaId":"35ADF607-EDCA-45AB-8FB6-9F2D40D47C0C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5.0","versionEndExcluding":"5.10.209","matchCriteriaId":"5D2E4F24-2FBB-4434-8598-2B1499E566B5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11.0","versionEndExcluding":"5.15.148","matchCriteriaId":"E25E1389-4B0F-407A-9C94-5908FF3EE88B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.0","versionEndExcluding":"6.1.74","matchCriteriaId":"F7DD9841-CE11-470D-A285-A2E8E0F6640D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2.0","versionEndExcluding":"6.6.13","matchCriteriaId":"74A1FFC7-19FA-450E-BC2D-2BBD2EBF0A5F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7.0","versionEndExcluding":"6.7.1","matchCriteriaId":"664EB721-F519-48BB-B1C8-897D5990CD78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:4.18:-:*:*:*:*:*:*","matchCriteriaId":"6AE7DC47-EAFA-42D5-BCF5-C7039EE3D771"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:4.18:rc5:*:*:*:*:*:*","matchCriteriaId":"DB2B91AF-ACE1-4F6F-B2D0-9D4B7D8D20CE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:4.18:rc6:*:*:*:*:*:*","matchCriteriaId":"30FBD992-DD41-441E-A6C7-D39DAC45DA34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:4.18:rc7:*:*:*:*:*:*","matchCriteriaId":"10979D17-76B4-465F-A475-78680FBECEBD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:4.18:rc8:*:*:*:*:*:*","matchCriteriaId":"56BF1EDD-3351-4E3E-AD42-54AF093ADB89"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kern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