CVE-2022-49811: drbd: use after free in drbd_create_device()

Published May 1, 2025
·
Updated

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

drbd: use after free in drbdcreatedevice()

The drbddestroyconnection() frees the "connection" so use the safe() iterator to prevent a use after free.

Affected Software

13 affected components
DRBD DRBD
Linux Kernel
Linux Linux kernel>=3.15<4.14.300
Linux Linux kernel>=4.15<4.19.267
Linux Linux kernel>=4.20<5.4.225
Linux Linux kernel>=5.5<5.10.156
Linux Linux kernel>=5.11<5.15.80
Linux Linux kernel>=5.16<6.0.10
Linux Linux kernel=6.1-rc1
Linux Linux kernel=6.1-rc2
Linux Linux kernel=6.1-rc3
Linux Linux kernel=6.1-rc4
Linux Linux kernel=6.1-rc5

Event History

May 1, 2025
CVE Published
via MITRE·02:09 PM
Data Sourced
via MITRE·02:09 PM
Description
Data Sourced
via NVD·03:16 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2022-49811?

CVE-2022-49811 has been classified with a severity level that may lead to potential use after free vulnerabilities in affected systems.

2

How do I fix CVE-2022-49811?

To fix CVE-2022-49811, ensure to update your Linux kernel or DRBD software to the latest patched version that addresses this vulnerability.

3

What are the affected systems for CVE-2022-49811?

CVE-2022-49811 affects systems running the Linux kernel and DRBD.

4

What does CVE-2022-49811 exploit?

CVE-2022-49811 exploits a use after free condition in the drbd_create_device function.

5

Is there a workaround for CVE-2022-49811?

There is no documented workaround for CVE-2022-49811; applying the recommended updates is necessary to mitigate the risk.

Contact

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