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CVE-2022-49835

17
FAUCET Score

CVE-2022-49835 is a memory leak vulnerability in the ALSA High Definition Audio (HDA) subsystem of the Linux kernel, specifically within the 'add_widget_node' function. This flaw, rated Medium severity (CVSS 5.5), could allow a local attacker with low privileges to cause a denial of service (system crash) due to resource exhaustion. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.334CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.300CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.267CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.225CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.155CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 40th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49835Low

kernel: ALSA: hda: fix potential memleak in 'add_widget_node'

May 1, 2025

References

git.kernel.org / stable/c/02dea987ec1cac712c78e75d224ceb9bb73519ed
Patch
git.kernel.org / stable/c/3a79f9568de08657fcdbc41d6fc4c0ca145a7a2b
Patch
git.kernel.org / stable/c/455d99bd6baf19688048b6d42d9fa74eae27f93b
Patch
git.kernel.org / stable/c/7140d7aaf93da6a665b454f91bb4dc6b1de218bd
Patch
git.kernel.org / stable/c/90b7d055e2b5f39429f9a9e3815b48a48530ef28
Patch
git.kernel.org / stable/c/9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143
Patch
git.kernel.org / stable/c/b688a3ec235222d9a84e43a48a6f31acb95baf2d
Patch
git.kernel.org / stable/c/bb0ac8d5e541224f599bc8e8f31a313faa4bf7b7
Patch