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CVE-2024-26944

7.8 · HIGH
Published May 1, 2024 linux CWE-416 EPSS 0.23% (13th pctl)

Overview

CVE-2024-26944 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 1, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

btrfs: zoned: fix use-after-free in do_zone_finish()

Shinichiro reported the following use-after-free triggered by the device

replace operation in fstests btrfs/070.

BTRFS info (device nullb1): scrub: finished on devid 1 with status: 0

==================================================================

BUG: KASAN: slab-use-after-free in do_zone_finish+0x91a/0xb90 [btrfs]

Read of size 8 at addr ffff8881543c8060 by task btrfs-cleaner/3494007

CPU: 0 PID: 3494007 Comm: btrfs-cleaner Tainted: G W 6.8.0-rc5-kts #1

Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020

Call Trace:

<TASK>

dump_stack_lvl+0x5b/0x90

print_report+0xcf/0x670

? __virt_addr_valid+0x200/0x3e0

kasan_report+0xd8/0x110

? do_zone_finish+0x91a/0xb90 [btrfs]

? do_zone_finish+0x91a/0xb90 [btrfs]

do_zone_finish+0x91a/0xb90 [btrfs]

btrfs_delete_unused_bgs+0x5e1/0x1750 [btrfs]

? __pfx_btrfs_delete_unu

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 5.16, < 6.8.3 Affected

Frequently Asked Questions

What is CVE-2024-26944?

CVE-2024-26944 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 1, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-26944?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26944?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-26944?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26944 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.