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CVE-2024-46687

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix a use-after-free when hitting errors inside btrfs_submit_chunk() [BUG] There is an internal report that KASAN is rep…

Published Sep 13, 2024CWE-415EPSS 0.21%

Overview

CVE-2024-46687 is a high-severity vulnerability. It was published on September 13, 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: fix a use-after-free when hitting errors inside btrfs_submit_chunk()

[BUG]

There is an internal report that KASAN is reporting use-after-free, with

the following backtrace:

BUG: KASAN: slab-use-after-free in btrfs_check_read_bio+0xa68/0xb70 [btrfs]

Read of size 4 at addr ffff8881117cec28 by task kworker/u16:2/45

CPU: 1 UID: 0 PID: 45 Comm: kworker/u16:2 Not tainted 6.11.0-rc2-next-20240805-default+ #76

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014

Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]

Call Trace:

dump_stack_lvl+0x61/0x80

print_address_description.constprop.0+0x5e/0x2f0

print_report+0x118/0x216

kasan_report+0x11d/0x1f0

btrfs_check_read_bio+0xa68/0xb70 [btrfs]

process_one_work+0xce0/0x12a0

worker_thread+0x717/0x1250

kthread+0x2e3/0x3c0

ret_from_fork+0x2d/0x70

ret_from_fork_asm+0x11/0x20

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

Frequently asked questions

What is CVE-2024-46687?

CVE-2024-46687 is a high-severity vulnerability. It was published on September 13, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-46687?

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-2024-46687?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2024-46687?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-46687 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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