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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-35955 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix possible use-after-free issue on kprobe registration When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/2df2dd27066cdba8041e46a64362325626bdfb2e CVE, kernel.org Patch 
https://git.kernel.org/stable/c/325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/36b57c7d2f8b7de224980f1a284432846ad71ca0 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/5062d1f4f07facbdade0f402d9a04a788f52e26d CVE, kernel.org Patch 
https://git.kernel.org/stable/c/62029bc9ff2c17a4e3a2478d83418ec575413808 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/93eb31e7c3399e326259f2caa17be1e821f5a412 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/b5808d40093403334d939e2c3c417144d12a6f33 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/d15023fb407337028a654237d8968fefdcf87c2f CVE, kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html CVE Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html CVE Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free CISA-ADP  

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-35955
NVD Published Date:
05/20/2024
NVD Last Modified:
04/04/2025
Source:
kernel.org