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CVE-2022-50546

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4_evict_inode' Syzbot found the following issue: =======================================…

Published Oct 7, 2025CWE-908EPSS 0.21%

Overview

CVE-2022-50546 is a high-severity vulnerability. It was published on October 7, 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:

ext4: fix uninititialized value in 'ext4_evict_inode'

Syzbot found the following issue:

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

BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180

ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180

evict+0x365/0x9a0 fs/inode.c:664

iput_final fs/inode.c:1747 [inline]

iput+0x985/0xdd0 fs/inode.c:1773

__ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361

ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844

vfs_mknod+0x79d/0x830 fs/namei.c:3914

do_mknodat+0x47d/0xaa0

__do_sys_mknodat fs/namei.c:3992 [inline]

__se_sys_mknodat fs/namei.c:3989 [inline]

__ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989

do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]

__do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178

do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203

do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246

entry_SYSENTER_compat_after_

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/091f85db4c3fb1734a6d7fb4777a2b2831da6631Refgit.kernel.org/stable/c/3c31d8d3ad95aef8cc17a4fcf317e46217148439Refgit.kernel.org/stable/c/56491d60ddca9c697d885394cb0173675b9ab81fRefgit.kernel.org/stable/c/7ea71af94eaaaf6d9aed24bc94a05b977a741cb9Refgit.kernel.org/stable/c/9f966e021c20caae639dd0e404c8761e8281a2c4Refgit.kernel.org/stable/c/e431b4fb1fb8c2654b808086e9747a000adb9655Refgit.kernel.org/stable/c/f0bffdcc7cb14598af2aa706f1e0f2a9054154ba

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50546?

CVE-2022-50546 is a high-severity vulnerability. It was published on October 7, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-50546?

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-2022-50546?

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-2022-50546?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50546 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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