// For flags

CVE-2021-46991

i40e: Fix use-after-free in i40e_client_subtask()

Severity Score

7.8
*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: i40e: Fix use-after-free in i40e_client_subtask() Currently the call to i40e_client_del_instance frees the object
pf->cinst, however pf->cinst->lan_info is being accessed after
the free. Fix this by adding the missing return. Addresses-Coverity: ("Read from pointer after free")

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i40e: Se corrige use-after-free en i40e_client_subtask() Actualmente la llamada a i40e_client_del_instance libera el objeto pf->cinst, sin embargo se accede a pf->cinst->lan_info después de gratis. Solucione este problema agregando la declaración que falta. Direcciones-Cobertura: ("Leer desde el puntero después de estar libre")

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix use-after-free in i40e_client_subtask() Currently the call to i40e_client_del_instance frees the object pf->cinst, however pf->cinst->lan_info is being accessed after the free. Fix this by adding the missing return. Addresses-Coverity: ("Read from pointer after free")

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
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"
 >= 4.16 < 4.19.191
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 4.19.191"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.16 < 5.4.120
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.4.120"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.16 < 5.10.38
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.10.38"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.16 < 5.11.22
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.11.22"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.16 < 5.12.5
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.12.5"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.16 < 5.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.13"
en
Affected