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NVD / CVE Program· CNA Linux

CVE-2022-49835: ALSA: hda: fix potential memleak in 'add_widget_node'

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: 0.20% (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 02dea987ec1cac712c78e75d224ceb9bb73519ed, 3a79f9568de08657fcdbc41d6fc4c0ca145a7a2b, 455d99bd6baf19688048b6d42d9fa74eae27f93b.

Low priority for now. Upgrade to Linux Linux 02dea987ec1cac712c78e75d224ceb9bb73519ed, 3a79f9568de08657fcdbc41d6fc4c0ca145a7a2b, 455d99bd6baf19688048b6d42d9fa74eae27f93b 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: ALSA: hda: fix potential memleak in 'add_widget_node' As 'kobject_add' may allocated memory for 'kobject->name' when return error. And in this function, if call 'kobject_add' failed didn't free kobject. So call 'kobject_put' to recycling resources.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 1, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 10th percentile

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%

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.

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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 kernelbefore 4.9.334
  • linux linux kernel4.10 and later · before 4.14.300
  • linux linux kernel4.15 and later · before 4.19.267
  • linux linux kernel4.20 and later · before 5.4.225
  • linux linux kernel5.5 and later · before 5.10.155
  • linux linux kernel5.11 and later · before 5.15.79
  • linux linux kernel5.16 and later · before 6.0.9
  • linux linux kernel6.1

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

    • 4.1affected
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before b688a3ec235222d9a84e43a48a6f31acb95baf2daffected · git
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before bb0ac8d5e541224f599bc8e8f31a313faa4bf7b7affected · git
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before 90b7d055e2b5f39429f9a9e3815b48a48530ef28affected · git
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before 02dea987ec1cac712c78e75d224ceb9bb73519edaffected · git
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before 3a79f9568de08657fcdbc41d6fc4c0ca145a7a2baffected · git
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before 7140d7aaf93da6a665b454f91bb4dc6b1de218bdaffected · git
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before 455d99bd6baf19688048b6d42d9fa74eae27f93baffected · git
    • 3256be6537751f65c76b3ecfbb4e667f87525a2f and later · before 9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143affected · git
    • before 4.1not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.10-16.0.10-1

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-2022-49833May 1, 2025 · btrfs: zoned: clone zoned device info when cloning a device
    22Monitor
  • ← EarlierCVE-2022-49834May 1, 2025 · nilfs2: fix use-after-free bug of ns_writer on remount
    31Monitor
  • Later →CVE-2022-49836May 1, 2025 · siox: fix possible memory leak in siox_device_add()
    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 Linux02dea987ec1cac712c78e75d224ceb9bb73519edVendor (CNA)
Linux Linux3a79f9568de08657fcdbc41d6fc4c0ca145a7a2bVendor (CNA)
Linux Linux455d99bd6baf19688048b6d42d9fa74eae27f93bVendor (CNA)
Linux Linux7140d7aaf93da6a665b454f91bb4dc6b1de218bdVendor (CNA)
Linux Linux90b7d055e2b5f39429f9a9e3815b48a48530ef28Vendor (CNA)
Linux Linux9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143Vendor (CNA)
Linux Linuxb688a3ec235222d9a84e43a48a6f31acb95baf2dVendor (CNA)
Linux Linuxbb0ac8d5e541224f599bc8e8f31a313faa4bf7b7Vendor (CNA)
debian:linux6.0.10-1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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)

CWE-401 · Missing Release of Memory after Effective Lifetime

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 (7 more)

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

All records