CVE-2021-47473

scsi: qla2xxx: Fix a memory leak in an error path of qla2x00_process_els()

Severity Score

3.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix a memory leak in an error path of qla2x00_process_els() Commit 8c0eb596baa5 ("[SCSI] qla2xxx: Fix a memory leak in an error path of
qla2x00_process_els()"), intended to change: bsg_job->request->msgcode == FC_BSG_HST_ELS_NOLOGIN bsg_job->request->msgcode != FC_BSG_RPT_ELS but changed it to: bsg_job->request->msgcode == FC_BSG_RPT_ELS instead. Change the == to a != to avoid leaking the fcport structure or freeing
unallocated memory.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: qla2xxx: corrige una pérdida de memoria en una ruta de error de qla2x00_process_els() Commit 8c0eb596baa5 ("[SCSI] qla2xxx: corrige una pérdida de memoria en una ruta de error de qla2x00_process_els()" ), destinado a cambiar: bsg_job->request->msgcode == FC_BSG_HST_ELS_NOLOGIN bsg_job->request->msgcode != FC_BSG_RPT_ELS pero lo cambió a: bsg_job->request->msgcode == FC_BSG_RPT_ELS en su lugar. Cambie == a != para evitar filtrar la estructura del fcport o liberar memoria no asignada.

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix a memory leak in an error path of qla2x00_process_els() Commit 8c0eb596baa5 ("[SCSI] qla2xxx: Fix a memory leak in an error path of qla2x00_process_els()"), intended to change: bsg_job->request->msgcode == FC_BSG_HST_ELS_NOLOGIN bsg_job->request->msgcode != FC_BSG_RPT_ELS but changed it to: bsg_job->request->msgcode == FC_BSG_RPT_ELS instead. Change the == to a != to avoid leaking the fcport structure or freeing unallocated memory.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-22 CVE Reserved
2024-05-22 CVE Published
2024-12-19 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (4)

URL	Tag	Source
https://git.kernel.org/stable/c/8c0eb596baa51f2b43949c698c644727ef17805c	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/96f0aebf29be25254fa585af43924e34aa21fd9a	2021-10-27
https://git.kernel.org/stable/c/a7fbb56e6c941d9f59437b96412a348e66388d3e	2021-10-27
https://git.kernel.org/stable/c/7fb223d0ad801f633c78cbe42b1d1b55f5d163ad	2021-10-19

URL	Date	SRC

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"				>= 3.11 < 5.10.76 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 5.10.76"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 5.14.15 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 5.14.15"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 5.15 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 5.15"		en		Affected