// For flags

CVE-2024-56767

dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved: dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset The at_xdmac_memset_create_desc may return NULL, which will lead to a
null pointer dereference. For example, the len input is error, or the
atchan->free_descs_list is empty and memory is exhausted. Therefore, add
check to avoid this.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dmaengine: at_xdmac: evitar null_prt_deref en at_xdmac_prep_dma_memset El parámetro at_xdmac_memset_create_desc puede devolver NULL, lo que provocará una desreferencia de puntero nulo. Por ejemplo, la entrada len es un error o la lista atchan->free_descs_list está vacía y la memoria está agotada. Por lo tanto, agregue una comprobación para evitar esto.

In the Linux kernel, the following vulnerability has been resolved: dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset The at_xdmac_memset_create_desc may return NULL, which will lead to a null pointer dereference. For example, the len input is error, or the atchan->free_descs_list is empty and memory is exhausted. Therefore, add check to avoid this.

*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
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2024-12-29 CVE Reserved
  • 2025-01-06 CVE Published
  • 2025-01-06 CVE Updated
  • 2025-01-08 EPSS 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"
 >= 4.2 < 6.1.123
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 6.1.123"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 6.6.69
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 6.6.69"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 6.12.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 6.12.8"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 6.13-rc5
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 6.13-rc5"
en
Affected