CVE-2021-47427 Affecting kernel-rt-trace-devel package, versions *


Severity

Recommended
low

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (10th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-7002246
  • published 22 May 2024
  • disclosed 21 May 2024

Introduced: 21 May 2024

New CVE-2021-47427 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 kernel-rt-trace-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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

scsi: iscsi: Fix iscsi_task use after free

Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn") added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but then also changed the handling of the case where we detect an already completed task where we now end up doing a goto to the common put/cleanup code. This results in a iscsi_task use after free, because the common cleanup code will do a put on the iscsi_task.

This reverts the goto and moves the iscsi_get_conn() to after we've checked if the iscsi_task is valid.

CVSS Scores

version 3.1
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Red Hat

5.5 medium
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SUSE

5.5 medium