What is CVE-2021-47382?

CVE-2021-47382 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Race Condition flaw (CWE-362), affecting Linux kernel versions from 5.10.8 onward and patched in 5.14.10 and 5.15. CVE-2021-47382 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47382?

CVE-2021-47382 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-47382?

Yes, CVE-2021-47382 has been patched. Fixed versions include 5.14.10 and 5.15. If you are running Linux kernel 5.10.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47382 actively exploited?

CVE-2021-47382 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2021-47382

Medium

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: fix deadlock during failing recovery Commit 0b9902c1fcc5 ("s390/qeth: fix deadlock during recovery") removed taking discipline_mutex inside qeth_do_reset(), fixing potential deadlocks. An error path was missed though, that still takes discipline_mutex and thus has the original deadlock potential. Intermittent deadlocks were seen when a qeth channel path is configured offline, causing a race between qeth_do_reset and ccwgroup_remove. Call qeth_set_offline() directly in the qeth_do_reset() error case and then a new variant of ccwgroup_set_offline(), without taking discipline_mutex.

Package Linux Kernel

Published 2024-05-21

Last modified 2024-12-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-362

CVE-2021-47382 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.10.8, 5.11 and later are affected. Fixed in 5.14.10, 5.15 and their respective stable series.

Affected from

≥ 5.10.8 ≥ 5.11

Fixed in

✓ 5.14.10 5.14.x ✓ 5.15

References

2 total

Kernel Git
https://git.kernel.org/stable/c/0bfe741741327822d1482c7edef0184636d08b40

Patch
Kernel Git
https://git.kernel.org/stable/c/d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62

Patch

Details

CVE ID CVE-2021-47382

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2024-12-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47382?

CVE-2021-47382 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 5.10.8 onward and has been patched in 5.14.10 and 5.15. CVE-2021-47382 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47382?

CVE-2021-47382 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-47382?

Yes. CVE-2021-47382 has been patched. Fixed versions include 5.14.10 and 5.15. If you are running Linux kernel 5.10.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47382 actively exploited?

No. CVE-2021-47382 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.