What is CVE-2022-48819?

CVE-2022-48819 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.16 onward and patched in 5.16.10 and 5.17. CVE-2022-48819 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-48819?

CVE-2022-48819 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-2022-48819?

Yes, CVE-2022-48819 has been patched. Fixed versions include 5.16.10 and 5.17. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-48819 actively exploited?

CVE-2022-48819 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-48819

Medium

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case syzbot found that mixing sendpage() and sendmsg(MSG_ZEROCOPY) calls over the same TCP socket would again trigger the infamous warning in inet_sock_destruct() WARN_ON(sk_forward_alloc_get(sk)); While Talal took into account a mix of regular copied data and MSG_ZEROCOPY one in the same skb, the sendpage() path has been forgotten. We want the charging to happen for sendpage(), because pages could be coming from a pipe. What is missing is the downgrading of pure zerocopy status to make sure sk_forward_alloc will stay synced. Add tcp_downgrade_zcopy_pure() helper so that we can use it from the two callers.

Package Linux Kernel

Published 2024-07-16

Last modified 2025-10-07

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 5.16 and later are affected. Fixed in 5.16.10, 5.17 and their respective stable series.

Affected from

≥ 5.16

Fixed in

✓ 5.16.10 5.16.x ✓ 5.17

References

2 total

Kernel Git
https://git.kernel.org/stable/c/47f3860c4931175f112f28dcac66eacca9b1040f

Patch
Kernel Git
https://git.kernel.org/stable/c/f8d9d938514f46c4892aff6bfe32f425e84d81cc

Patch

Details

CVE ID CVE-2022-48819

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-07-16

Modified 2025-10-07

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-48819?

CVE-2022-48819 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.16 onward and has been patched in 5.16.10 and 5.17. CVE-2022-48819 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-48819?

CVE-2022-48819 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-2022-48819?

Yes. CVE-2022-48819 has been patched. Fixed versions include 5.16.10 and 5.17. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-48819 actively exploited?

No. CVE-2022-48819 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.