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Linux CVE-2024-49981

HIGH
Race Condition (CWE-362)
2024-10-21 416baaa9-dc9f-4396-8d5f-8c081fb06d67
7.0
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.0 HIGH
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Oct 21, 2024 - 18:15 nvd
HIGH 7.0

DescriptionNVD

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.

AnalysisAI

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. Rated high severity (CVSS 7.0).

Technical ContextAI

This vulnerability is classified under CWE-362. 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. Affected products include: Linux Linux Kernel.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2024-49981 vulnerability details – vuln.today

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