{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T07:09:43.383","vulnerabilities":[{"cve":{"id":"CVE-2021-47413","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-05-21T15:15:26.793","lastModified":"2024-12-30T20:00:33.497","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle\n\nWhen passing 'phys' in the devicetree to describe the USB PHY phandle\n(which is the recommended way according to\nDocumentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) the\nfollowing NULL pointer dereference is observed on i.MX7 and i.MX8MM:\n\n[    1.489344] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098\n[    1.498170] Mem abort info:\n[    1.500966]   ESR = 0x96000044\n[    1.504030]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    1.509356]   SET = 0, FnV = 0\n[    1.512416]   EA = 0, S1PTW = 0\n[    1.515569]   FSC = 0x04: level 0 translation fault\n[    1.520458] Data abort info:\n[    1.523349]   ISV = 0, ISS = 0x00000044\n[    1.527196]   CM = 0, WnR = 1\n[    1.530176] [0000000000000098] user address but active_mm is swapper\n[    1.536544] Internal error: Oops: 96000044 [#1] PREEMPT SMP\n[    1.542125] Modules linked in:\n[    1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3\n[    1.551901] Hardware name: Kontron i.MX8MM N801X S (DT)\n[    1.557133] Workqueue: events_unbound deferred_probe_work_func\n[    1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)\n[    1.568998] pc : imx7d_charger_detection+0x3f0/0x510\n[    1.573973] lr : imx7d_charger_detection+0x22c/0x510\n\nThis happens because the charger functions check for the phy presence\ninside the imx_usbmisc_data structure (data->usb_phy), but the chipidea\ncore populates the usb_phy passed via 'phys' inside 'struct ci_hdrc'\n(ci->usb_phy) instead.\n\nThis causes the NULL pointer dereference inside imx7d_charger_detection().\n\nFix it by also searching for 'phys' in case 'fsl,usbphy' is not found.\n\nTested on a imx7s-warp board."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: chipidea: ci_hdrc_imx: también busque 'phys' phandle. Al pasar 'phys' en el árbol de dispositivos para describir el phandle USB PHY (que es la forma recomendada según Documentation/devicetree /bindings/usb/ci-hdrc-usb2.txt) se observa la siguiente desreferencia del puntero NULL en i.MX7 e i.MX8MM: [1.489344] No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 00000000000000098 [1.498170] Información de cancelación de memoria: [ 1.500966] ESR = 0x96000044 [ 1.504030] EC = 0x25: DABT (EL actual), IL = 32 bits [ 1.509356] SET = 0, FnV = 0 [ 1.512416] EA = 0, S1PTW = 0 [ 1.515569] FSC = 0x04: error de traducción de nivel 0 [1.520458] Información de cancelación de datos: [1.523349] ISV = 0, ISS = 0x00000044 [1.527196] CM = 0, WnR = 1 [1.530176] [0000000000000098] dirección de usuario pero active_mm es intercambiador [1.536544 ] Error interno: Ups : 96000044 [#1] PREEMPT SMP [ 1.542125] Módulos vinculados en: [ 1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3 [ 1.551901] Nombre de hardware: Kontron i.MX8MM N801X S (DT) [1.557133] Cola de trabajo: events_unbound deferred_probe_work_func [1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--) [1.568998] pc: imx7d_charger_detection+0x3f0/0x510 [ 1. 573973] lr: imx7d_charger_detection+0x22c /0x510 Esto sucede porque las funciones del cargador verifican la presencia de phy dentro de la estructura imx_usbmisc_data (data->usb_phy), pero el núcleo chipidea llena el usb_phy pasado a través de 'phys' dentro de 'struct ci_hdrc' (ci->usb_phy). Esto provoca la desreferencia del puntero NULL dentro de imx7d_charger_detection(). Solucione el problema buscando también 'phys' en caso de que no se encuentre 'fsl,usbphy'. Probado en una placa imx7s-warp."}],"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":"5.8","versionEndExcluding":"5.10.73","matchCriteriaId":"CF25CE87-2A22-42E7-B959-33757194C123"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.14.12","matchCriteriaId":"20EB962C-32DC-448F-A900-BCF9A726F9EB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*","matchCriteriaId":"E46C74C6-B76B-4C94-A6A4-FD2FFF62D644"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*","matchCriteriaId":"60134C3A-06E4-48C1-B04F-2903732A4E56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*","matchCriteriaId":"0460DA88-8FE1-46A2-9DDA-1F1ABA552E71"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*","matchCriteriaId":"AF55383D-4DF2-45DC-93F7-571F4F978EAB"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b3265b88e83b16c7be762fa5fb7e0632bce0002c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b3265b88e83b16c7be762fa5fb7e0632bce0002c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}