What is CVE-2022-49747?

CVE-2022-49747 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.15 onward and patched in 5.15.92, 6.1.10 and 6.2. CVE-2022-49747 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49747?

CVE-2022-49747 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-2022-49747?

Yes, CVE-2022-49747 has been patched. Fixed versions include 5.15.92, 6.1.10 and 6.2. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49747 actively exploited?

CVE-2022-49747 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49747

Medium

In the Linux kernel, the following vulnerability has been resolved: erofs/zmap.c: Fix incorrect offset calculation Effective offset to add to length was being incorrectly calculated, which resulted in iomap->length being set to 0, triggering a WARN_ON in iomap_iter_done(). Fix that, and describe it in comments. This was reported as a crash by syzbot under an issue about a warning encountered in iomap_iter_done(), but unrelated to erofs. C reproducer: https://syzkaller.appspot.com/text?tag=ReproC&x=1037a6b2880000 Kernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=e2021a61197ebe02 Dashboard link: https://syzkaller.appspot.com/bug?extid=a8e049cd3abd342936b6

Package Linux Kernel

Published 2025-03-27

Last modified 2025-10-29

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 and later are affected. Fixed in 5.15.92, 6.1.10, 6.2 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 5.15.92 5.15.x ✓ 6.1.10 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-49747 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/2144859229c1e74f52d3ea067338d314a83a8afb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6acd87d50998ef0afafc441613aeaf5a8f5c9eff
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9f31d8c889d9a4e47bfcc6c4537d0c9f89fe582c
Patch

Details

CVE ID CVE-2022-49747

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-03-27

Modified 2025-10-29

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49747?

CVE-2022-49747 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 onward and has been patched in 5.15.92, 6.1.10 and 6.2. CVE-2022-49747 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49747?

CVE-2022-49747 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-2022-49747?

Yes — CVE-2022-49747 has been patched. Fixed versions include 5.15.92, 6.1.10 and 6.2. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49747 actively exploited?

No — CVE-2022-49747 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.