What is CVE-2026-89838?

CVE-2026-89838 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 3.11 onward and patched in 6.12.112, 6.18.53, 7.2.5 and others. CVE-2026-89838 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-89838?

CVE-2026-89838 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2026-89838?

Yes, CVE-2026-89838 has been patched. Fixed versions include 6.12.112, 6.18.53, 7.2.5 and others. If you are running Linux kernel 3.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-89838 actively exploited?

CVE-2026-89838 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-89838

High

In the Linux kernel, the following vulnerability has been resolved: f2fs: limit recovery filename logging to stored length F2FS stores recovery filenames as a length plus a fixed-size i_name buffer. The buffer is not NUL-terminated, but recover_inode() and recover_dentry() print it with %s. For a 255-byte filename, recovery logging can read past i_name into the following raw inode fields. Print the name with a precision bounded by i_namelen and F2FS_NAME_LEN.

Package Linux Kernel

Published 2026-09-16

Last modified 2026-10-03

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected versions

Linux kernel versions 3.11 and later are affected. Fixed in 6.12.112, 6.18.53, 7.2.5, 7.3-rc1 and their respective stable series.

Affected from

≥ 3.11

Fixed in

✓ 6.12.112 6.12.x ✓ 6.18.53 6.18.x ✓ 7.2.5 7.2.x ✓ 7.3-rc1

References

4 total

Details

CVE ID CVE-2026-89838

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2026-09-16

Modified 2026-10-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-89838?

CVE-2026-89838 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 3.11 onward and has been patched in 6.12.112, 6.18.53, 7.2.5 and others. CVE-2026-89838 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-89838?

CVE-2026-89838 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2026-89838?

Yes. CVE-2026-89838 has been patched. Fixed versions include 6.12.112, 6.18.53, 7.2.5 and others. If you are running Linux kernel 3.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-89838 actively exploited?

No. CVE-2026-89838 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.