{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-09T16:28:09.629","vulnerabilities":[{"cve":{"id":"CVE-2023-54321","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-12-30T13:16:21.410","lastModified":"2026-02-26T18:48:36.663","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: fix potential null-ptr-deref in device_add()\n\nI got the following null-ptr-deref report while doing fault injection test:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000058\nCPU: 2 PID: 278 Comm: 37-i2c-ds2482 Tainted: G    B   W        N 6.1.0-rc3+\nRIP: 0010:klist_put+0x2d/0xd0\nCall Trace:\n <TASK>\n klist_remove+0xf1/0x1c0\n device_release_driver_internal+0x196/0x210\n bus_remove_device+0x1bd/0x240\n device_add+0xd3d/0x1100\n w1_add_master_device+0x476/0x490 [wire]\n ds2482_probe+0x303/0x3e0 [ds2482]\n\nThis is how it happened:\n\nw1_alloc_dev()\n  // The dev->driver is set to w1_master_driver.\n  memcpy(&dev->dev, device, sizeof(struct device));\n  device_add()\n    bus_add_device()\n    dpm_sysfs_add() // It fails, calls bus_remove_device.\n\n    // error path\n    bus_remove_device()\n      // The dev->driver is not null, but driver is not bound.\n      __device_release_driver()\n        klist_remove(&dev->p->knode_driver) <-- It causes null-ptr-deref.\n\n    // normal path\n    bus_probe_device() // It's not called yet.\n      device_bind_driver()\n\nIf dev->driver is set, in the error path after calling bus_add_device()\nin device_add(), bus_remove_device() is called, then the device will be\ndetached from driver. But device_bind_driver() is not called yet, so it\ncauses null-ptr-deref while access the 'knode_driver'. To fix this, set\ndev->driver to null in the error path before calling bus_remove_device()."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnúcleo del controlador: corrige una potencial desreferencia de puntero nulo en device_add()\n\nRecibí el siguiente informe de desreferencia de puntero nulo mientras realizaba una prueba de inyección de fallos:\n\nERROR: desreferencia de puntero NULL del kernel, dirección: 0000000000000058\nCPU: 2 PID: 278 Comm: 37-i2c-ds2482 Tainted: G B W N 6.1.0-rc3+\nRIP: 0010:klist_put+0x2d/0xd0\nTraza de llamadas:\n \n klist_remove+0xf1/0x1c0\n device_release_driver_internal+0x196/0x210\n bus_remove_device+0x1bd/0x240\n device_add+0xd3d/0x1100\n w1_add_master_device+0x476/0x490 [wire]\n ds2482_probe+0x303/0x3e0 [ds2482]\n\nAsí es como ocurrió:\n\nw1_alloc_dev()\n  // El dev-&gt;driver se establece en w1_master_driver.\n  memcpy(&amp;dev-&gt;dev, device, sizeof(struct device));\n  device_add()\n    bus_add_device()\n    dpm_sysfs_add() // Falla, llama a bus_remove_device.\n\n    // ruta de error\n    bus_remove_device()\n      // El dev-&gt;driver no es nulo, pero el controlador no está enlazado.\n      __device_release_driver()\n        klist_remove(&amp;dev-&gt;p-&gt;knode_driver) &lt;-- Causa una desreferencia de puntero nulo.\n\n    // ruta normal\n    bus_probe_device() // Aún no se ha llamado.\n      device_bind_driver()\n\nSi dev-&gt;driver está establecido, en la ruta de error después de llamar a bus_add_device() en device_add(), se llama a bus_remove_device(), entonces el dispositivo será desvinculado del controlador. Pero device_bind_driver() aún no se ha llamado, por lo que causa una desreferencia de puntero nulo al acceder a 'knode_driver'. Para solucionar esto, establece dev-&gt;driver en nulo en la ruta de error antes de llamar a bus_remove_device()."}],"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:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"5.10.249","matchCriteriaId":"9D348797-6EB9-4DCA-AB7C-43C12A032085"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.99","matchCriteriaId":"5B8B2AC9-2F31-4A0F-96F5-7E26B50B27BB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.16","matchCriteriaId":"0FD95FDA-6525-4B13-B3FB-49D9995FD8ED"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.2.3","matchCriteriaId":"88C67289-22AD-4CA9-B202-5F5A80E5BA4B"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/17982304806c5c10924e73f7ca5556e0d7378452","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/2c59650d078b1b3f1ea50d5f8ee9fcc537dc02d3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/7cf515bf9e8c2908dc170ecf2df117162a16c9c5","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/97aa8fb74bbe9aaf4ed5962a784f73b071bd16bf","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f6837f34a34973ef6600c08195ed300e24e97317","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}