CVE-2026-94024

Module Manager object lookup validates one byte of a module's search name

State
Published
Severity
6.9 Medium
Published
Oct 20, 2026
Updated
Oct 20, 2026
Reserved
Sep 23, 2026

Read the record on cve.org

Description

The Module Manager's object lookup validated one byte of a memory-protected module's search name and then walked as much of it as the module declared, in privileged mode, with the kernel's preemption count raised. Both lookup dispatchers are affected: the recommended `txm_module_object_pointer_get_extended` is handed a length and does not use it to bound the buffer, and the deprecated `txm_module_object_pointer_get` supplies the largest value a `UINT` can hold, so it removes the bound rather than lacking one.

A module can make the walk unbounded without knowing anything about the memory it reaches, and where the walk reaches memory a privileged read cannot take, the resulting fault leaves the kernel unable to preempt for the rest of the system's life.

Vulnerable functions: `_txm_module_manager_txm_module_object_pointer_get_dispatch`, `_txm_module_manager_txm_module_object_pointer_get_extended_dispatch` (both in `common_modules/module_manager/inc/txm_module_manager_dispatch.h`) and `_txm_module_manager_object_name_compare` (`common_modules/module_manager/src/txm_module_manager_util.c`).

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:Neclipse

Weaknesses

  • CWE-125 Out-of-bounds Read
  • CWE-1284 Improper Validation of Specified Quantity in Input

Affected Products

ProductVersions
Eclipse ThreadXEclipse Foundation
  • 6.0.1 through 6.5.1.202602aAffected
  • 6.5.2.202603Not affected

References

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