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NVD / CVE Program· CNA Linux

CVE-2022-49724: tty: goldfish: Fix free_irq() on remove

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.27% (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 499e13aac6c762e1e828172b0f0f5275651d6512, 65ca4db68b6819244df9024aea4be55edf8af1ef, a6fcd7ffd76a9c1d998a2d02d518c78a55c5bed8.

Low priority for now. Upgrade to Linux Linux 499e13aac6c762e1e828172b0f0f5275651d6512, 65ca4db68b6819244df9024aea4be55edf8af1ef, a6fcd7ffd76a9c1d998a2d02d518c78a55c5bed8 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: tty: goldfish: Fix free_irq() on remove Pass the correct dev_id to free_irq() to fix this splat when the driver is unbound: WARNING: CPU: 0 PID: 30 at kernel/irq/manage.c:1895 free_irq Trying to free already-free IRQ 65 Call Trace: warn_slowpath_fmt free_irq goldfish_tty_remove platform_remove device_remove device_release_driver_internal device_driver_detach unbind_store drv_attr_store ...

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 20th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-49724

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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 kernel4.6 and later · before 4.14.285
  • linux linux kernel4.15 and later · before 4.19.249
  • linux linux kernel4.20 and later · before 5.4.200
  • linux linux kernel5.5 and later · before 5.10.124
  • linux linux kernel5.11 and later · before 5.15.49
  • linux linux kernel5.16 and later · before 5.18.6
  • linux linux kernel5.19

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

    • 4.6affected
    • 465893e18878e119d8d0255439fad8debbd646fd and later · before c4b0b8edccb0cfb15a8cecf4161e0571d3daac64affected · git
    • 465893e18878e119d8d0255439fad8debbd646fd and later · before c83a1d40dc624070a203eb383ef9fb60eb634136affected · git
    • 465893e18878e119d8d0255439fad8debbd646fd and later · before f7183c76d500324b8b5bd0af5e663cfa57b7b836affected · git
    • 465893e18878e119d8d0255439fad8debbd646fd and later · before 65ca4db68b6819244df9024aea4be55edf8af1efaffected · git
    • 465893e18878e119d8d0255439fad8debbd646fd and later · before fb15e79cacddfbc62264e6e807bde50ad688e988affected · git
    • 465893e18878e119d8d0255439fad8debbd646fd and later · before a6fcd7ffd76a9c1d998a2d02d518c78a55c5bed8affected · git
    • 465893e18878e119d8d0255439fad8debbd646fd and later · before 499e13aac6c762e1e828172b0f0f5275651d6512affected · git
    • before 4.6not affected · semver
    • 4.14.285 and later · up to and including 4.14.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.14-15.18.14-1

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-2022-49722Feb 26, 2025 · ice: Fix memory corruption in VF driver
    31Monitor
  • ← EarlierCVE-2022-49723Feb 26, 2025 · drm/i915/reset: Fix error_state_read ptr + offset use
    22Monitor
  • Later →CVE-2022-49725Feb 26, 2025 · i40e: Fix call trace in setup_tx_descriptors
    22Monitor

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 Linux499e13aac6c762e1e828172b0f0f5275651d6512Vendor (CNA)
Linux Linux65ca4db68b6819244df9024aea4be55edf8af1efVendor (CNA)
Linux Linuxa6fcd7ffd76a9c1d998a2d02d518c78a55c5bed8Vendor (CNA)
Linux Linuxc4b0b8edccb0cfb15a8cecf4161e0571d3daac64Vendor (CNA)
Linux Linuxc83a1d40dc624070a203eb383ef9fb60eb634136Vendor (CNA)
Linux Linuxf7183c76d500324b8b5bd0af5e663cfa57b7b836Vendor (CNA)
Linux Linuxfb15e79cacddfbc62264e6e807bde50ad688e988Vendor (CNA)
debian:linux5.18.14-1 · Debian:12Package 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

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

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

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 (6 more)

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

All records