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CVE-2024-56692

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on node blkaddr in truncate_node() syzbot reports a f2fs bug as below: ------------[ cut here ]--…

Published Dec 28, 2024CWE-754EPSS 0.21%

Overview

CVE-2024-56692 is a high-severity vulnerability. It was published on December 28, 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:

f2fs: fix to do sanity check on node blkaddr in truncate_node()

syzbot reports a f2fs bug as below:

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

kernel BUG at fs/f2fs/segment.c:2534!

RIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534

Call Trace:

truncate_node+0x1ae/0x8c0 fs/f2fs/node.c:909

f2fs_remove_inode_page+0x5c2/0x870 fs/f2fs/node.c:1288

f2fs_evict_inode+0x879/0x15c0 fs/f2fs/inode.c:856

evict+0x4e8/0x9b0 fs/inode.c:723

f2fs_handle_failed_inode+0x271/0x2e0 fs/f2fs/inode.c:986

f2fs_create+0x357/0x530 fs/f2fs/namei.c:394

lookup_open fs/namei.c:3595 [inline]

open_last_lookups fs/namei.c:3694 [inline]

path_openat+0x1c03/0x3590 fs/namei.c:3930

do_filp_open+0x235/0x490 fs/namei.c:3960

do_sys_openat2+0x13e/0x1d0 fs/open.c:1415

do_sys_open fs/open.c:1430 [inline]

__do_sys_openat fs/open.c:1446 [inline]

__se_sys_openat fs/open.c:1441 [inline]

__x64_sys_openat+0x247/0x2a0 fs/open.c:1441

do_syscal

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/0a5c8b3fbf6200f1c66062d307c9a52084917788Refgit.kernel.org/stable/c/27d6e7eff07f8cce8e83b162d8f21a07458c860dRefgit.kernel.org/stable/c/6babe00ccd34fc65b78ef8b99754e32b4385f23dRefgit.kernel.org/stable/c/c1077078ce4589b5e5387f6b0aaa0d4534b9eb57

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56692?

CVE-2024-56692 is a high-severity vulnerability. It was published on December 28, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-56692?

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-2024-56692?

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-2024-56692?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56692 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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