What is CVE-2024-50191?

CVE-2024-50191 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.6 onward and patched in 6.6.57, 6.11.4 and 6.12. CVE-2024-50191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-50191?

CVE-2024-50191 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-2024-50191?

Yes, CVE-2024-50191 has been patched. Fixed versions include 6.6.57, 6.11.4 and 6.12. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-50191 actively exploited?

CVE-2024-50191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-50191

Medium

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set SB_RDONLY after filesystem errors When the filesystem is mounted with errors=remount-ro, we were setting SB_RDONLY flag to stop all filesystem modifications. We knew this misses proper locking (sb->s_umount) and does not go through proper filesystem remount procedure but it has been the way this worked since early ext2 days and it was good enough for catastrophic situation damage mitigation. Recently, syzbot has found a way (see link) to trigger warnings in filesystem freezing because the code got confused by SB_RDONLY changing under its hands. Since these days we set EXT4_FLAGS_SHUTDOWN on the superblock which is enough to stop all filesystem modifications, modifying SB_RDONLY shouldn't be needed. So stop doing that.

Package Linux Kernel

Published 2024-11-08

Last modified 2026-01-05

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 6.6 and later are affected. Fixed in 6.6.57, 6.11.4, 6.12 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.6.57 6.6.x ✓ 6.11.4 6.11.x ✓ 6.12

References

The following references provide additional information about CVE-2024-50191 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Kernel patch commit
https://git.kernel.org/stable/c/58c0648e4c773f5b54f0cb63bc8c7c6bf52719a9
Patch
Kernel patch commit
https://git.kernel.org/stable/c/d3476f3dad4ad68ae5f6b008ea6591d1520da5d8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ee77c388469116565e009eaa704a60bc78489e09
Patch

Details

CVE ID CVE-2024-50191

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-11-08

Modified 2026-01-05

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-50191?

CVE-2024-50191 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.57, 6.11.4 and 6.12. CVE-2024-50191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-50191?

CVE-2024-50191 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-2024-50191?

Yes — CVE-2024-50191 has been patched. Fixed versions include 6.6.57, 6.11.4 and 6.12. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-50191 actively exploited?

No — CVE-2024-50191 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.