// For flags

CVE-2021-47045

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

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: lpfc: corrige la desreferencia del puntero nulo en lpfc_prep_els_iocb() Es posible llamar a lpfc_issue_els_plogi() pasando un did para el cual no se encuentra ningún ndlp coincidente. Luego se realiza una llamada a lpfc_prep_els_iocb() con un puntero nulo a una estructura lpfc_nodelist, lo que da como resultado una desreferencia del puntero nulo. Corrija devolviendo un estado de error si no se encuentra ningún ndlp válido. Corrija los comentarios sobre el recuento de referencias de ndlp.

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.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-27 CVE Reserved
  • 2024-02-28 CVE Published
  • 2024-12-17 EPSS Updated
  • 2024-12-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 5.11.21
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.11.21"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 5.12.4
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.12.4"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 5.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.13"
en
Affected