What is CVE-2022-49002?

CVE-2022-49002 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 3.15 onward and patched in 4.9.335, 4.14.301, 4.19.268 and others. CVE-2022-49002 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49002?

CVE-2022-49002 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-49002?

Yes, CVE-2022-49002 has been patched. Fixed versions include 4.9.335, 4.14.301, 4.19.268 and others. If you are running Linux kernel 3.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49002 actively exploited?

CVE-2022-49002 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49002

Medium

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the error path to avoid reference count leak.

Package Linux Kernel

Published 2024-10-21

Last modified 2024-10-25

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 3.15 and later are affected. Fixed in 4.9.335, 4.14.301, 4.19.268, 5.4.226, 5.10.158, 5.15.82, 6.0.12, 6.1 and their respective stable series.

Affected from

≥ 3.15

Fixed in

✓ 4.9.335 4.9.x ✓ 4.14.301 4.14.x ✓ 4.19.268 4.19.x ✓ 5.4.226 5.4.x ✓ 5.10.158 5.10.x ✓ 5.15.82 5.15.x ✓ 6.0.12 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49002 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3
Patch
Kernel patch commit
https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2022-49002

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-10-21

Modified 2024-10-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49002?

CVE-2022-49002 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.15 onward and has been patched in 4.9.335, 4.14.301, 4.19.268 and others. CVE-2022-49002 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49002?

CVE-2022-49002 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-49002?

Yes — CVE-2022-49002 has been patched. Fixed versions include 4.9.335, 4.14.301, 4.19.268 and others. If you are running Linux kernel 3.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49002 actively exploited?

No — CVE-2022-49002 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.