CVE-2022-49180Public exploit

Local kernel crash via conflicting LSM hook results

Published Feb 26, 2025 · Updated May 11, 2026

Improper LSM hook result handling in Linux allows local users to crash affected kernels by supplying crafted mount options. security_fs_context_parse_param applies a stop-on-error pattern, so a BPF -ENOPARAM result overrides an earlier Smack success and leaves legacy_parse_param in an inconsistent state. Triggering the fault requires local low-privileged access and the relevant LSM hook sequence; the demonstrated consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper LSM hook result handling in Linux allows local users to crash affected kernels by supplying crafted mount options. security_fs_context_parse_param applies a stop-on-error pattern, so a BPF -ENOPARAM result overrides an earlier Smack success and leaves legacy_parse_param in an inconsistent state. Triggering the fault requires local low-privileged access and the relevant LSM hook sequence; the demonstrated consequence is a kernel crash.

The record

CVE
CVE-2022-49180
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.1
  2. Affected versionversion=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <00fc07fa0b4a004711b6e1a944f0d2e46f7093b7
  3. Affected versionversion=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <2784604c8c6fc523248f8f80a421c313a9d790b7
  4. Affected versionversion=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <cadae7c5e477aaafcba819b8e4a3d1c1a1503b62
  5. Affected versionversion=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <ddcdda888e14ca451b3ee83d11b65b2a9c8e783b
  6. Affected versionversion=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <ecff30575b5ad0eda149aadad247b7f75411fd47
  7. Affected versionversion=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <f3f93a1aaafc3032e0a9655fb43deccfb3e953a3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.1; version=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <00fc07fa0b4a004711b6e1a944f0d2e46f7093b7; version=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <2784604c8c6fc523248f8f80a421c313a9d790b7; version=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <cadae7c5e477aaafcba819b8e4a3d1c1a1503b62; version=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <ddcdda888e14ca451b3ee83d11b65b2a9c8e783b; version=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <ecff30575b5ad0eda149aadad247b7f75411fd47; version=da2441fdffbf7602da702aea5bd95ca4dc3d63fc <f3f93a1aaafc3032e0a9655fb43deccfb3e953a3

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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