{"id":"CVE-2021-47045","state":"PUBLISHED","title":"scsi: lpfc: Fix null pointer dereference in lpfc_prep_els_iocb()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix null pointer dereference in lpfc_prep_els_iocb()\n\nIt is possible to call lpfc_issue_els_plogi() passing a did for which no\nmatching ndlp is found. A call is then made to lpfc_prep_els_iocb() with a\nnull pointer to a lpfc_nodelist structure resulting in a null pointer\ndereference.\n\nFix by returning an error status if no valid ndlp is found. Fix up comments\nregarding ndlp reference counting.","publishedAt":"2024-02-28T08:13:49.708Z","updatedAt":"2026-05-11T13:46:58.652Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4430f7fd09ecb037570119e0aacbf0c17b8f98b2","status":"affected","lessThan":"a09677de458d500b00701f6036baa423d9995408","versionType":"git"},{"version":"4430f7fd09ecb037570119e0aacbf0c17b8f98b2","status":"affected","lessThan":"9bdcfbed2a9fe24d2c7eaa1bad7c705e18de8cc7","versionType":"git"},{"version":"4430f7fd09ecb037570119e0aacbf0c17b8f98b2","status":"affected","lessThan":"8dd1c125f7f838abad009b64bff5f0a11afe3cb6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/lpfc/lpfc_els.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.11.21","status":"unaffected","lessThanOrEqual":"5.11.*","versionType":"semver"},{"version":"5.12.4","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/lpfc/lpfc_els.c"]}],"references":["https://git.kernel.org/stable/c/a09677de458d500b00701f6036baa423d9995408","https://git.kernel.org/stable/c/9bdcfbed2a9fe24d2c7eaa1bad7c705e18de8cc7","https://git.kernel.org/stable/c/8dd1c125f7f838abad009b64bff5f0a11afe3cb6"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47045.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47045","state":"PUBLISHED","datePublished":"2024-02-28T08:13:49.708Z","dateUpdated":"2026-05-11T13:46:58.652Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-27T18:42:55.970Z"},"containers":{"cna":{"title":"scsi: lpfc: Fix null pointer dereference in lpfc_prep_els_iocb()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix null pointer dereference in lpfc_prep_els_iocb()\n\nIt is possible to call lpfc_issue_els_plogi() passing a did for which no\nmatching ndlp is found. A call is then made to lpfc_prep_els_iocb() with a\nnull pointer to a lpfc_nodelist structure resulting in a null pointer\ndereference.\n\nFix by returning an error status if no valid ndlp is found. Fix up comments\nregarding ndlp reference counting."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4430f7fd09ecb037570119e0aacbf0c17b8f98b2","status":"affected","lessThan":"a09677de458d500b00701f6036baa423d9995408","versionType":"git"},{"version":"4430f7fd09ecb037570119e0aacbf0c17b8f98b2","status":"affected","lessThan":"9bdcfbed2a9fe24d2c7eaa1bad7c705e18de8cc7","versionType":"git"},{"version":"4430f7fd09ecb037570119e0aacbf0c17b8f98b2","status":"affected","lessThan":"8dd1c125f7f838abad009b64bff5f0a11afe3cb6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/lpfc/lpfc_els.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.11.21","status":"unaffected","lessThanOrEqual":"5.11.*","versionType":"semver"},{"version":"5.12.4","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/lpfc/lpfc_els.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a09677de458d500b00701f6036baa423d9995408"},{"url":"https://git.kernel.org/stable/c/9bdcfbed2a9fe24d2c7eaa1bad7c705e18de8cc7"},{"url":"https://git.kernel.org/stable/c/8dd1c125f7f838abad009b64bff5f0a11afe3cb6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:46:58.652Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.11.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.12.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47045","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-05T18:15:44.582355Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T17:13:28.365Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/a09677de458d500b00701f6036baa423d9995408","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9bdcfbed2a9fe24d2c7eaa1bad7c705e18de8cc7","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8dd1c125f7f838abad009b64bff5f0a11afe3cb6","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T05:24:39.643Z"}}]}}}