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CVE-2021-47045

scsi: lpfc: Fix null pointer dereference in lpfc_prep_els_iocb() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix null pointer dereference in lpfc_prep_els_iocb() It is possible to call lpfc_issue_els_plogi() passing a did for which no matching ndlp is found. A call is then made to lpfc_prep_els_iocb() with a null pointer to a lpfc_nodelist structure resulting in a null pointer dereference. Fix by returning an error status if no valid ndlp is found. Fix up comments regarding ndlp reference counting.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 4430f7fd09ecb037570119e0aacbf0c17b8f98b2 before a09677de458d500b00701f6036baa423d9995408; affected 4430f7fd09ecb037570119e0aacbf0c17b8f98b2 before 9bdcfbed2a9fe24d2c7eaa1bad7c705e18de8cc7; affected 4430f7fd09ecb037570119e0aacbf0c17b8f98b2 before 8dd1c125f7f838abad009b64bff5f0a11afe3cb6
Linux / Linuxaffected 5.11; unaffected 0 before 5.11; unaffected 5.11.21 through 5.11.*; unaffected 5.12.4 through 5.12.*; unaffected 5.13 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.