CVE-2021-47049

HighCVSS 7.8/10Last modified Aug 4, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 6f3d791f300618caf82a2be0c27456edd76d5164, < d5c7b42c9f56ca46b286daa537d181bd7f69214f; >= 6f3d791f300618caf82a2be0c27456edd76d5164, < f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560; >= 6f3d791f300618caf82a2be0c27456edd76d5164, < 2728f289b3270b0e273292b46c534421a33bbfd5; >= 6f3d791f300618caf82a2be0c27456edd76d5164, < 3e9bf43f7f7a46f21ec071cb47be92d0874c48da; 6b32d45bd59982751beb8220e442b40b2706647f; >= 4.13.9, < 4.14
LinuxLinux4.14

References

Timeline

Published
Feb 28, 2024
Last modified
Aug 4, 2026
NVD status
Modified

Related CVEs from 2021

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CVE-2021-47049: High severity, CVSS 7.8 | Vulnix