What is CVE-2022-49749?

CVE-2022-49749 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Integer Overflow flaw (CWE-190), affecting Linux kernel versions from 3.2 onward and patched in 5.10.166, 5.15.91, 6.1.9 and others. CVE-2022-49749 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49749?

CVE-2022-49749 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-2022-49749?

Yes, CVE-2022-49749 has been patched. Fixed versions include 5.10.166, 5.15.91, 6.1.9 and others. If you are running Linux kernel 3.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49749 actively exploited?

CVE-2022-49749 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2022-49749

Medium

In the Linux kernel, the following vulnerability has been resolved: i2c: designware: use casting of u64 in clock multiplication to avoid overflow In functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow by depending on the values of the given parameters including the ic_clk. For example in our use case where ic_clk is larger than one million, multiplication of ic_clk * 4700 will result in 32 bit overflow. Add cast of u64 to the calculation to avoid multiplication overflow, and use the corresponding define for divide.

Package Linux Kernel

Published 2025-03-27

Last modified 2025-10-01

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

Weakness type

CWE-190

CVE-2022-49749 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.2 and later are affected. Fixed in 5.10.166, 5.15.91, 6.1.9, 6.2 and their respective stable series.

Affected from

≥ 3.2

Fixed in

✓ 5.10.166 5.10.x ✓ 5.15.91 5.15.x ✓ 6.1.9 6.1.x ✓ 6.2

References

4 total

Kernel Git
https://git.kernel.org/stable/c/2f29d780bd691d20e89e5b35d5e6568607115e94

Patch
Kernel Git
https://git.kernel.org/stable/c/9f36aae9e80e79b7a6d62227eaa96935166be9fe

Patch
Kernel Git
https://git.kernel.org/stable/c/c8c37bc514514999e62a17e95160ed9ebf75ca8d

Patch
Kernel Git
https://git.kernel.org/stable/c/ed173f77fd28a3e4fffc13b3f28687b9eba61157

Patch

Details

CVE ID CVE-2022-49749

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-03-27

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49749?

CVE-2022-49749 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 3.2 onward and has been patched in 5.10.166, 5.15.91, 6.1.9 and others. CVE-2022-49749 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49749?

CVE-2022-49749 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-2022-49749?

Yes. CVE-2022-49749 has been patched. Fixed versions include 5.10.166, 5.15.91, 6.1.9 and others. If you are running Linux kernel 3.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49749 actively exploited?

No. CVE-2022-49749 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.