What is CVE-2022-49356?

CVE-2022-49356 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.11 onward and patched in 5.15.47, 5.17.15, 5.18.4 and others. CVE-2022-49356 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49356?

CVE-2022-49356 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-2022-49356?

Yes, CVE-2022-49356 has been patched. Fixed versions include 5.15.47, 5.17.15, 5.18.4 and others. If you are running Linux kernel 5.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49356 actively exploited?

CVE-2022-49356 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49356

Medium

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Trap RDMA segment overflows Prevent svc_rdma_build_writes() from walking off the end of a Write chunk's segment array. Caught with KASAN. The test that this fix replaces is invalid, and might have been left over from an earlier prototype of the PCL work.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-21

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 5.11 and later are affected. Fixed in 5.15.47, 5.17.15, 5.18.4, 5.19 and their respective stable series.

Affected from

≥ 5.11

Fixed in

✓ 5.15.47 5.15.x ✓ 5.17.15 5.17.x ✓ 5.18.4 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49356 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/659f7568e09593945c221bf20217a82ebdfe1328
Patch
Kernel patch commit
https://git.kernel.org/stable/c/812c13521d4a72469c78ce06d8cdc8dc5b5557b5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ea26bf5eca1459b5a7824997d7823409ce38214e
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2022-49356

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49356?

CVE-2022-49356 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.11 onward and has been patched in 5.15.47, 5.17.15, 5.18.4 and others. CVE-2022-49356 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49356?

CVE-2022-49356 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-2022-49356?

Yes — CVE-2022-49356 has been patched. Fixed versions include 5.15.47, 5.17.15, 5.18.4 and others. If you are running Linux kernel 5.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49356 actively exploited?

No — CVE-2022-49356 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.