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CVE-2024-49981

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: media: venus: fix use after free bug in venus_remove due to race condition in venus_probe, core->work is bound with venus_sys_e…

Published Oct 21, 2024CWE-362EPSS 0.19%

Overview

CVE-2024-49981 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

media: venus: fix use after free bug in venus_remove due to race condition

in venus_probe, core->work is bound with venus_sys_error_handler, which is

used to handle error. The code use core->sys_err_done to make sync work.

The core->work is started in venus_event_notify.

If we call venus_remove, there might be an unfished work. The possible

sequence is as follows:

CPU0 CPU1

|venus_sys_error_handler

venus_remove |

hfi_destroy |

venus_hfi_destroy |

kfree(hdev); |

|hfi_reinit

|venus_hfi_queues_reinit

|//use hdev

Fix it by canceling the work in venus_remove.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/10941d4f99a5a34999121b314afcd9c0a1c14f15Refgit.kernel.org/stable/c/2a541fcc0bd2b05a458e9613376df1289ec11621Refgit.kernel.org/stable/c/5098b9e6377577fe13d03e1d8914930f014a3314Refgit.kernel.org/stable/c/60b6968341a6dd5353554f3e72db554693a128a5Refgit.kernel.org/stable/c/63bbe26471ebdcc3c20bb4cc3950d666279ad658Refgit.kernel.org/stable/c/b0686aedc5f1343442d044bd64eeac7e7a391f4eRefgit.kernel.org/stable/c/bf6be32e2d39f6301ff1831e249d32a8744ab28aRefgit.kernel.org/stable/c/c5a85ed88e043474161bbfe54002c89c1cb50ee2Refgit.kernel.org/stable/c/d925e9f7fb5a2dbefd1a73fc01061f38c7becd4cReflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-49981?

CVE-2024-49981 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-49981?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-49981?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-49981?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-49981 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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