// For flags

CVE-2021-47252

batman-adv: Avoid WARN_ON timing related checks

Severity Score

"-"
*CVSS v-

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:

batman-adv: Avoid WARN_ON timing related checks

The soft/batadv interface for a queued OGM can be changed during the time
the OGM was queued for transmission and when the OGM is actually
transmitted by the worker.

But WARN_ON must be used to denote kernel bugs and not to print simple
warnings. A warning can simply be printed using pr_warn.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: batman-adv: Evite comprobaciones relacionadas con el tiempo WARN_ON. La interfaz soft/batadv para un MDS en cola se puede cambiar durante el tiempo que el MDS estuvo en cola para transmisiĆ³n y cuando el MDS realmente se transmite por el trabajador. Pero WARN_ON debe usarse para indicar errores del kernel y no para imprimir simples advertencias. Una advertencia se puede imprimir simplemente usando pr_warn.

*Credits: N/A
CVSS Scores
Attack Vector
-
Attack Complexity
-
Privileges Required
-
User Interaction
-
Scope
-
Confidentiality
-
Integrity
-
Availability
-
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-04-10 CVE Reserved
  • 2024-05-21 CVE Published
  • 2024-05-22 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"
>= 3.14 < 4.4.293
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 4.4.293"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.14 < 4.9.274
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 4.9.274"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.14 < 4.14.238
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 4.14.238"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.14 < 4.19.196
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 4.19.196"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.14 < 5.4.128
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 5.4.128"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.14 < 5.10.46
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 5.10.46"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.14 < 5.12.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 5.12.13"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.14 < 5.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.14 < 5.13"
en
Affected