{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-09T17:42:54.256","vulnerabilities":[{"cve":{"id":"CVE-2021-4441","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-08-22T02:15:04.563","lastModified":"2024-09-11T16:43:41.000","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-zynq-qspi: Fix a NULL pointer dereference in zynq_qspi_exec_mem_op()\n\nIn zynq_qspi_exec_mem_op(), kzalloc() is directly used in memset(),\nwhich could lead to a NULL pointer dereference on failure of\nkzalloc().\n\nFix this bug by adding a check of tmpbuf.\n\nThis bug was found by a static analyzer. The analysis employs\ndifferential checking to identify inconsistent security operations\n(e.g., checks or kfrees) between two code paths and confirms that the\ninconsistent operations are not recovered in the current function or\nthe callers, so they constitute bugs.\n\nNote that, as a bug found by static analysis, it can be a false\npositive or hard to trigger. Multiple researchers have cross-reviewed\nthe bug.\n\nBuilds with CONFIG_SPI_ZYNQ_QSPI=m show no new warnings,\nand our static analyzer no longer warns about this code."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: spi-zynq-qspi: corrige una desreferencia de puntero NULL en zynq_qspi_exec_mem_op() En zynq_qspi_exec_mem_op(), kzalloc() se usa directamente en memset(), lo que podría provocar un Desreferencia del puntero NULL en caso de falla de kzalloc(). Corrija este error agregando una verificación de tmpbuf. Este error fue encontrado por un analizador estático. El análisis emplea verificación diferencial para identificar operaciones de seguridad inconsistentes (por ejemplo, comprobaciones o kfrees) entre dos rutas de código y confirma que las operaciones inconsistentes no se recuperan en la función actual o en las personas que llaman, por lo que constituyen errores. Tenga en cuenta que, como error encontrado mediante análisis estático, puede ser un falso positivo o difícil de activar. Varios investigadores han realizado una revisión cruzada del error. Las compilaciones con CONFIG_SPI_ZYNQ_QSPI=m no muestran nuevas advertencias y nuestro analizador estático ya no advierte sobre este código."}],"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":"5.2","versionEndExcluding":"5.4.182","matchCriteriaId":"14A69F21-00AC-43D7-A8A1-4D144BA6E074"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.103","matchCriteriaId":"1A95B717-3110-4D4F-B8FC-373919BB514D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.26","matchCriteriaId":"9AB342AE-A62E-4947-A6EA-511453062B2B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"5.16.12","matchCriteriaId":"C76BAB21-7F23-4AD8-A25F-CA7B262A2698"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*","matchCriteriaId":"7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*","matchCriteriaId":"E6E34B23-78B4-4516-9BD8-61B33F4AC49A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*","matchCriteriaId":"C030FA3D-03F4-4FB9-9DBF-D08E5CAC51AA"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*","matchCriteriaId":"B2D2677C-5389-4AE9-869D-0F881E80D923"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:*","matchCriteriaId":"EFA3917C-C322-4D92-912D-ECE45B2E7416"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2efece1368aeee2d2552c7ec36aeb676c4d4c95f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3c32405d6474a21f7d742828e73c13e326dcae82","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ab3824427b848da10e9fe2727f035bbeecae6ff4","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b9dd08cbebe0c593c49bf86d2012a431494e54cb","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/df14d2bed8e2455878e046e67123d9ecb2e79056","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}