What is CVE-2022-49849?

CVE-2022-49849 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.15.54 onward and patched in 5.15.79, 6.0.9 and 6.1. CVE-2022-49849 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49849?

CVE-2022-49849 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-2022-49849?

Yes, CVE-2022-49849 has been patched. Fixed versions include 5.15.79, 6.0.9 and 6.1. If you are running Linux kernel 5.15.54 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49849 actively exploited?

CVE-2022-49849 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49849

Medium

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in dev_args_match_device syzkaller found a failed assertion: assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly. Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.

Package Linux Kernel

Published 2025-05-01

Last modified 2025-11-10

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 5.15.54, 5.16 and later are affected. Fixed in 5.15.79, 6.0.9, 6.1 and their respective stable series.

Affected from

≥ 5.15.54 ≥ 5.16

Fixed in

✓ 5.15.79 5.15.x ✓ 6.0.9 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49849 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/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001
Patch
Kernel patch commit
https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9
Patch

Details

CVE ID CVE-2022-49849

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2025-11-10

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49849?

CVE-2022-49849 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.15.54 onward and has been patched in 5.15.79, 6.0.9 and 6.1. CVE-2022-49849 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49849?

CVE-2022-49849 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-2022-49849?

Yes — CVE-2022-49849 has been patched. Fixed versions include 5.15.79, 6.0.9 and 6.1. If you are running Linux kernel 5.15.54 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49849 actively exploited?

No — CVE-2022-49849 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.