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CVE-2025-38677

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid out-of-boundary access in dnode page As Jiaming Zhang reported: <TASK> __dump_stack lib/dump_stack.c:94 […

Published Aug 30, 2025CWE-125EPSS 0.17%

Overview

CVE-2025-38677 is a high-severity vulnerability. It was published on August 30, 2025 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 avoid out-of-boundary access in dnode page

As Jiaming Zhang reported:

<TASK>

__dump_stack lib/dump_stack.c:94 [inline]

dump_stack_lvl+0x1c1/0x2a0 lib/dump_stack.c:120

print_address_description mm/kasan/report.c:378 [inline]

print_report+0x17e/0x800 mm/kasan/report.c:480

kasan_report+0x147/0x180 mm/kasan/report.c:593

data_blkaddr fs/f2fs/f2fs.h:3053 [inline]

f2fs_data_blkaddr fs/f2fs/f2fs.h:3058 [inline]

f2fs_get_dnode_of_data+0x1a09/0x1c40 fs/f2fs/node.c:855

f2fs_reserve_block+0x53/0x310 fs/f2fs/data.c:1195

prepare_write_begin fs/f2fs/data.c:3395 [inline]

f2fs_write_begin+0xf39/0x2190 fs/f2fs/data.c:3594

generic_perform_write+0x2c7/0x910 mm/filemap.c:4112

f2fs_buffered_write_iter fs/f2fs/file.c:4988 [inline]

f2fs_file_write_iter+0x1ec8/0x2410 fs/f2fs/file.c:5216

new_sync_write fs/read_write.c:593 [inline]

vfs_write+0x546/0xa90 fs/read_write.c:686

ksys_write+0x149/0x250 fs/read_write.c:

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/6b7784ea07e6aa044f74b39d6b5af5e28746fc81Refgit.kernel.org/stable/c/77de19b6867f2740cdcb6c9c7e50d522b47847a4Refgit.kernel.org/stable/c/888aa660144bcb6ec07839da756ee46bfcf7fc53Refgit.kernel.org/stable/c/901f62efd6e855f93d8b1175540f29f4dc45ba55Refgit.kernel.org/stable/c/92ef491b506a0f4dd971a3a76f86f2d8f5370180Refgit.kernel.org/stable/c/a650654365c57407413e9b1f6ff4d539bf2e99caRefgit.kernel.org/stable/c/ee4d13f5407cbdf1216cc258f45492075713889aRefgit.kernel.org/stable/c/f1d5093d9fe9f3c74c123741c88666cc853b79c5Reflists.debian.org/debian-lts-announce/2025/10/msg00007.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38677?

CVE-2025-38677 is a high-severity vulnerability. It was published on August 30, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38677?

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-2025-38677?

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-2025-38677?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38677 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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