CVE-2021-47049 - CVE House

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Status published High CVE-2021-47049

Drivers: hv: vmbus: Use after free in __vmbus_open()

7.8 CVSS

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Use after free in __vmbus_open() The "open_info" variable is added to the &vmbus_connection.chn_msg_list, but the error handling frees "open_info" without removing it from the list. This will result in a use after free. First remove it from the list, and then free it.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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fs/ntfs3: Initialize new folios before use

Affected Vendor

Linux

View all reports →

Affected Software

Linux

Vulnerable Versions:

6f3d791f300618caf82a2be0c27456edd76d5164, 6b32d45bd59982751beb8220e442b40b2706647f, 4.13.9, 4.14, 0, 5.10.37, 5.11.21, 5.12.4, 5.13

Timeline

Official Publish: February 28th, 2024

Last Modified: May 23rd, 2026

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.