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CVE-2022-50346

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ext4: init quota for 'old.inode' in 'ext4_rename' Syzbot found the following issue: ext4_parse_param: s_want_extra_isize=128 ex…

Published Sep 16, 2025CWE-908EPSS 0.16%

Overview

CVE-2022-50346 is a medium-severity vulnerability. It was published on September 16, 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: init quota for 'old.inode' in 'ext4_rename'

Syzbot found the following issue:

ext4_parse_param: s_want_extra_isize=128

ext4_inode_info_init: s_want_extra_isize=32

ext4_rename: old.inode=ffff88823869a2c8 old.dir=ffff888238699828 new.inode=ffff88823869d7e8 new.dir=ffff888238699828

__ext4_mark_inode_dirty: inode=ffff888238699828 ea_isize=32 want_ea_size=128

__ext4_mark_inode_dirty: inode=ffff88823869a2c8 ea_isize=32 want_ea_size=128

ext4_xattr_block_set: inode=ffff88823869a2c8

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

WARNING: CPU: 13 PID: 2234 at fs/ext4/xattr.c:2070 ext4_xattr_block_set.cold+0x22/0x980

Modules linked in:

RIP: 0010:ext4_xattr_block_set.cold+0x22/0x980

RSP: 0018:ffff888227d3f3b0 EFLAGS: 00010202

RAX: 0000000000000001 RBX: ffff88823007a000 RCX: 0000000000000000

RDX: 0000000000000a03 RSI: 0000000000000040 RDI: ffff888230078178

RBP: 0000000000000000 R08: 000000000000002c R09: ffffed1075c7df8e

R10: ffff888

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/13271fbbe85d73a7c47058f56a52f2a7f00d6e39Refgit.kernel.org/stable/c/135ba9146f4d38abed48a540ef8a8770ff0bd34fRefgit.kernel.org/stable/c/33fd7031d634f3b46e59f61adfbb0ea9fe514fefRefgit.kernel.org/stable/c/67f6d5a4043f3db0c6bb0e14a0d97a7be8bfb8b5Refgit.kernel.org/stable/c/7dfb8259f66faafa68d23a261b284d2c2c67649bRefgit.kernel.org/stable/c/84a2f2ed49d6a4d92b354219077434c57d334620Refgit.kernel.org/stable/c/def7a39091e60e1c4a2f623629082a00092602beRefgit.kernel.org/stable/c/f263e349bacc2f303526dcfa61c4bc50132418b1Refgit.kernel.org/stable/c/fae381a3d79bb94aa2eb752170d47458d778b797

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50346?

CVE-2022-50346 is a medium-severity vulnerability. It was published on September 16, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50346?

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-2022-50346?

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-2022-50346?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50346 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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