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CVE-2023-53447

4.7 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: f2fs: don't reset unchangable mount option in f2fs_remount() syzbot reports a bug as below: general protection fault, probably…

Published Sep 18, 2025CWE-362EPSS 0.10%

Overview

CVE-2023-53447 is a medium-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, 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: don't reset unchangable mount option in f2fs_remount()

syzbot reports a bug as below:

general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN

RIP: 0010:__lock_acquire+0x69/0x2000 kernel/locking/lockdep.c:4942

Call Trace:

lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691

__raw_write_lock include/linux/rwlock_api_smp.h:209 [inline]

_raw_write_lock+0x2e/0x40 kernel/locking/spinlock.c:300

__drop_extent_tree+0x3ac/0x660 fs/f2fs/extent_cache.c:1100

f2fs_drop_extent_tree+0x17/0x30 fs/f2fs/extent_cache.c:1116

f2fs_insert_range+0x2d5/0x3c0 fs/f2fs/file.c:1664

f2fs_fallocate+0x4e4/0x6d0 fs/f2fs/file.c:1838

vfs_fallocate+0x54b/0x6b0 fs/open.c:324

ksys_fallocate fs/open.c:347 [inline]

__do_sys_fallocate fs/open.c:355 [inline]

__se_sys_fallocate fs/open.c:353 [inline]

__x64_sys_fallocate+0xbd/0x100 fs/open.c:353

do_syscall_x64 arch/x86/entry/common.c:50

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-2023-53447?

CVE-2023-53447 is a medium-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2023-53447?

This vulnerability has a CVSS 3.1 base score of 4.7, 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-2023-53447?

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-2023-53447?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53447 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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