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CVE-2024-50118

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject ro->rw reconfiguration if there are hard ro requirements [BUG] Syzbot reports the following crash: BTRFS info…

Published Nov 5, 2024CWE-476EPSS 0.19%

Overview

CVE-2024-50118 is a medium-severity vulnerability. It was published on November 5, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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: reject ro->rw reconfiguration if there are hard ro requirements

[BUG]

Syzbot reports the following crash:

BTRFS info (device loop0 state MCS): disabling free space tree

BTRFS info (device loop0 state MCS): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)

BTRFS info (device loop0 state MCS): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)

Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN NOPTI

KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]

Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014

RIP: 0010:backup_super_roots fs/btrfs/disk-io.c:1691 [inline]

RIP: 0010:write_all_supers+0x97a/0x40f0 fs/btrfs/disk-io.c:4041

Call Trace:

<TASK>

btrfs_commit_transaction+0x1eae/0x3740 fs/btrfs/transaction.c:2530

btrfs_delete_free_space_tre

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.

References

Refgit.kernel.org/stable/c/23724398b55d9570f6ae79dd2ea026fff8896bf1Refgit.kernel.org/stable/c/3c36a72c1d27de6618c1c480c793d9924640f5bb

How CyberStrike helps

Frequently asked questions

What is CVE-2024-50118?

CVE-2024-50118 is a medium-severity vulnerability. It was published on November 5, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50118?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-50118?

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-2024-50118?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-50118 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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