// For flags

CVE-2025-22016

dpll: fix xa_alloc_cyclic() error handling

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: dpll: fix xa_alloc_cyclic() error handling In case of returning 1 from xa_alloc_cyclic() (wrapping) ERR_PTR(1) will
be returned, which will cause IS_ERR() to be false. Which can lead to
dereference not allocated pointer (pin). Fix it by checking if err is lower than zero. This wasn't found in real usecase, only noticed. Credit to Pierre.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dpll: corrección de la gestión de errores de xa_alloc_cyclic(). Si se devuelve 1 desde xa_alloc_cyclic() (encapsulamiento), se devolverá ERR_PTR(1), lo que hará que IS_ERR() sea falso. Esto puede provocar la desreferencia de un puntero no asignado (pin). Se corrige comprobando si err es menor que cero. Esto no se detectó en un caso práctico real, solo se detectó. Gracias a Pierre.

In the Linux kernel, the following vulnerability has been resolved: dpll: fix xa_alloc_cyclic() error handling In case of returning 1 from xa_alloc_cyclic() (wrapping) ERR_PTR(1) will be returned, which will cause IS_ERR() to be false. Which can lead to dereference not allocated pointer (pin). Fix it by checking if err is lower than zero. This wasn't found in real usecase, only noticed. Credit to Pierre.

*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
  • 2025-04-08 CVE Published
  • 2025-04-08 CVE Updated
  • 2025-04-08 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"
 >= 6.8 < 6.12.21
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.12.21"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.8 < 6.13.9
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.13.9"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.8 < 6.14
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.14"
en
Affected