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CVE-2022-49708

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on ext4_mb_use_inode_pa Hulk Robot reported a BUG_ON: ===========================================================…

Published Feb 26, 2025CWE-617EPSS 0.28%

Overview

CVE-2022-49708 is a medium-severity vulnerability. It was published on February 26, 2025 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:

ext4: fix bug_on ext4_mb_use_inode_pa

Hulk Robot reported a BUG_ON:

==================================================================

kernel BUG at fs/ext4/mballoc.c:3211!

[...]

RIP: 0010:ext4_mb_mark_diskspace_used.cold+0x85/0x136f

[...]

Call Trace:

ext4_mb_new_blocks+0x9df/0x5d30

ext4_ext_map_blocks+0x1803/0x4d80

ext4_map_blocks+0x3a4/0x1a10

ext4_writepages+0x126d/0x2c30

do_writepages+0x7f/0x1b0

__filemap_fdatawrite_range+0x285/0x3b0

file_write_and_wait_range+0xb1/0x140

ext4_sync_file+0x1aa/0xca0

vfs_fsync_range+0xfb/0x260

do_fsync+0x48/0xa0

[...]

==================================================================

Above issue may happen as follows:

-------------------------------------

do_fsync

vfs_fsync_range

ext4_sync_file

file_write_and_wait_range

__filemap_fdatawrite_range

do_writepages

ext4_writepages

mpage_map_and_submit_extent

mpage_map_one_extent

ext4_

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/5707d721d1819db57dba57b1d4623034fcb32047Refgit.kernel.org/stable/c/6880fb2e64331b9fdc85d3f32b1d7e81ad8703f1Refgit.kernel.org/stable/c/6fdaf31ad5f3d3afab744dfd9a8b0d9142aa881fRefgit.kernel.org/stable/c/887a3e9ad4b8309a2266bce7ae749b2bf1f7a687Refgit.kernel.org/stable/c/90f0f9d45dff0128c0fca0d2358c4153b024afa6Refgit.kernel.org/stable/c/a08f789d2ab5242c07e716baf9a835725046be89Refgit.kernel.org/stable/c/a37c1359714da42517dd19d36fc3c4d17edba832Refgit.kernel.org/stable/c/a6b31616e5afe1d3972cb0682a373e50597faf5c

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49708?

CVE-2022-49708 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49708?

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-2022-49708?

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-2022-49708?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49708 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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