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NVD / CVE Program· CNA Linux

CVE-2022-49180: LSM: general protection fault in legacy_parse_param

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.26% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 00fc07fa0b4a004711b6e1a944f0d2e46f7093b7, 2784604c8c6fc523248f8f80a421c313a9d790b7, cadae7c5e477aaafcba819b8e4a3d1c1a1503b62.

Low priority for now. Upgrade to Linux Linux 00fc07fa0b4a004711b6e1a944f0d2e46f7093b7, 2784604c8c6fc523248f8f80a421c313a9d790b7, cadae7c5e477aaafcba819b8e4a3d1c1a1503b62 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: LSM: general protection fault in legacy_parse_param The usual LSM hook "bail on fail" scheme doesn't work for cases where a security module may return an error code indicating that it does not recognize an input. In this particular case Smack sees a mount option that it recognizes, and returns 0. A call to a BPF hook follows, which returns -ENOPARAM, which confuses the caller because Smack has processed its data. The SELinux hook incorrectly returns 1 on success. There was a time when this was correct, however the current expectation is that it return 0 on success. This is repaired.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 19th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelbefore 5.4.189
  • linux linux kernel5.5 and later · before 5.10.110
  • linux linux kernel5.11 and later · before 5.15.33
  • linux linux kernel5.16 and later · before 5.16.19
  • linux linux kernel5.17 and later · before 5.17.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.1affected
    • da2441fdffbf7602da702aea5bd95ca4dc3d63fc and later · before ddcdda888e14ca451b3ee83d11b65b2a9c8e783baffected · git
    • da2441fdffbf7602da702aea5bd95ca4dc3d63fc and later · before 2784604c8c6fc523248f8f80a421c313a9d790b7affected · git
    • da2441fdffbf7602da702aea5bd95ca4dc3d63fc and later · before f3f93a1aaafc3032e0a9655fb43deccfb3e953a3affected · git
    • da2441fdffbf7602da702aea5bd95ca4dc3d63fc and later · before 00fc07fa0b4a004711b6e1a944f0d2e46f7093b7affected · git
    • da2441fdffbf7602da702aea5bd95ca4dc3d63fc and later · before cadae7c5e477aaafcba819b8e4a3d1c1a1503b62affected · git
    • da2441fdffbf7602da702aea5bd95ca4dc3d63fc and later · before ecff30575b5ad0eda149aadad247b7f75411fd47affected · git
    • before 5.1not affected · semver
    • 5.4.189 and later · up to and including 5.4.*not affected · semver
    • 5.10.110 and later · up to and including 5.10.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.17.3-15.17.3-1
Red Hat:enterprise_linux:8::baseosbpftoolbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseosbpftool-debuginfobefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernelbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-abi-stablelistsbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-corebefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debugbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debug-corebefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debug-debuginfobefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debug-develbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debug-modulesbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debug-modules-extrabefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debuginfobefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-aarch64before 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-ppc64lebefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-s390xbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-x86_64before 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-develbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-docbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-modulesbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-modules-extrabefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-toolsbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-tools-debuginfobefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9
Red Hat:enterprise_linux:8::baseoskernel-tools-libsbefore 0:4.18.0-513.5.1.el8_90:4.18.0-513.5.1.el8_9

+11

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49177Feb 26, 2025 · hwrng: cavium - fix NULL but dereferenced coccicheck error
    22Monitor
  • ← EarlierCVE-2022-49179Feb 26, 2025 · block, bfq: don't move oom_bfqq
    31Monitor
  • Later →CVE-2022-49182Feb 26, 2025 · net: hns3: add vlan list lock to protect vlan list
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux00fc07fa0b4a004711b6e1a944f0d2e46f7093b7Vendor (CNA)
Linux Linux2784604c8c6fc523248f8f80a421c313a9d790b7Vendor (CNA)
Linux Linuxcadae7c5e477aaafcba819b8e4a3d1c1a1503b62Vendor (CNA)
Linux Linuxddcdda888e14ca451b3ee83d11b65b2a9c8e783bVendor (CNA)
Linux Linuxecff30575b5ad0eda149aadad247b7f75411fd47Vendor (CNA)
Linux Linuxf3f93a1aaafc3032e0a9655fb43deccfb3e953a3Vendor (CNA)
debian:linux5.17.3-1 · Debian:12Package registry (OSV)
red hat:bpftool0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:bpftool-debuginfo0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-abi-stablelists0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-core0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-core0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-debuginfo0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-devel0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-modules0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-modules-extra0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debuginfo0:4.18.0-513.5.1.el8_9 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records