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CVE-2024-56586

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode.

Published Dec 27, 2024EPSS 0.24%

Overview

CVE-2024-56586 is a medium-severity vulnerability. It was published on December 27, 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:

f2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode.

creating a large files during checkpoint disable until it runs out of

space and then delete it, then remount to enable checkpoint again, and

then unmount the filesystem triggers the f2fs_bug_on as below:

------------[ cut here ]------------

kernel BUG at fs/f2fs/inode.c:896!

CPU: 2 UID: 0 PID: 1286 Comm: umount Not tainted 6.11.0-rc7-dirty #360

Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

RIP: 0010:f2fs_evict_inode+0x58c/0x610

Call Trace:

__die_body+0x15/0x60

die+0x33/0x50

do_trap+0x10a/0x120

f2fs_evict_inode+0x58c/0x610

do_error_trap+0x60/0x80

f2fs_evict_inode+0x58c/0x610

exc_invalid_op+0x53/0x60

f2fs_evict_inode+0x58c/0x610

asm_exc_invalid_op+0x16/0x20

f2fs_evict_inode+0x58c/0x610

evict+0x101/0x260

dispose_list+0x30/0x50

evict_inodes+0x140/0x190

generic_shutdown_super+0x2f/0x150

kill_block_super+0x11/0x40

kill_f2fs_super

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/9669b28f81e0ec6305af7773846fbe2cef1e7d61Refgit.kernel.org/stable/c/9e28513fd2858911dcf47b84160a8824587536b6Refgit.kernel.org/stable/c/a365de2fbfbe1e6740bfb75ab5c3245cf7bbe4d7Refgit.kernel.org/stable/c/ac8aaf78bd039fa1be0acaa8e84a56499f79d721Refgit.kernel.org/stable/c/d5c367ef8287fb4d235c46a2f8c8d68715f3a0caRefgit.kernel.org/stable/c/dff561e4060d28edc9a2960d4a87f3c945a96aa3Refgit.kernel.org/stable/c/ef517d2d21c3d8e2ad35b2bb728bd1c90a31e617Reflists.debian.org/debian-lts-announce/2025/03/msg00001.htmlReflists.debian.org/debian-lts-announce/2025/03/msg00002.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56586?

CVE-2024-56586 is a medium-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56586?

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-2024-56586?

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-2024-56586?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56586 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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