What is CVE-2024-26773?

CVE-2024-26773 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2024-26773 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26773?

CVE-2024-26773 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-2024-26773?

No patch is currently available for CVE-2024-26773. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-26773 actively exploited?

CVE-2024-26773 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-26773

Medium

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() Determine if the group block bitmap is corrupted before using ac_b_ex in ext4_mb_try_best_found() to avoid allocating blocks from a group with a corrupted block bitmap in the following concurrency and making the situation worse. ext4_mb_regular_allocator ext4_lock_group(sb, group) ext4_mb_good_group // check if the group bbitmap is corrupted ext4_mb_complex_scan_group // Scan group gets ac_b_ex but doesn't use it ext4_unlock_group(sb, group) ext4_mark_group_bitmap_corrupted(group) // The block bitmap was corrupted during // the group unlock gap. ext4_mb_try_best_found ext4_lock_group(ac->ac_sb, group) ext4_mb_use_best_found mb_mark_used // Allocating blocks in block bitmap corrupted group

Package Linux Kernel

Published 2024-04-03

Last modified 2025-03-18

CVSS version 3.1

Patch available

Awaiting data

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

References

The following references provide additional information about CVE-2024-26773 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/2024/06/msg00017.html

Mailing List
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Mailing List
Kernel patch commit
https://git.kernel.org/stable/c/0184747b552d6b5a14db3b7fcc3b792ce64dedd1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/21f8cfe79f776287459343e9cfa6055af61328ea
Patch
Kernel patch commit
https://git.kernel.org/stable/c/260fc96283c0f594de18a1b045faf6d8fb42874d
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2024-26773

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-03

Modified 2025-03-18

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-26773?

CVE-2024-26773 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-26773 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26773?

CVE-2024-26773 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-2024-26773?

No patch is currently available for CVE-2024-26773. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-26773 actively exploited?

No — CVE-2024-26773 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.