CVE-2022-48716· NVD / CVE Program· CNA Linux

ASoC: codecs: wcd938x: fix incorrect used of portid

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: 0.45% (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.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: Linux Linux 9167f2712dc8c24964840a4d1e2ebf130e846b95, aa7152f9f117b3e66b3c0d4158ca4c6d46ab229f, c5c1546a654f613e291a7c5d6f3660fc1eb6d0c7; azl3 kernel 6.6.78.1-3 on Azure Linux 3.0 6.6.82.1-1.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 9167f2712dc8c24964840a4d1e2ebf130e846b95, aa7152f9f117b3e66b3c0d4158ca4c6d46ab229f, c5c1546a654f613e291a7c5d6f3660fc1eb6d0c7; azl3 kernel 6.6.78.1-3 on Azure Linux 3.0 6.6.82.1-1 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: ASoC: codecs: wcd938x: fix incorrect used of portid Mixer controls have the channel id in mixer->reg, which is not same as port id. port id should be derived from chan_info array. So fix this. Without this, its possible that we could corrupt struct wcd938x_sdw_priv by accessing port_map array out of range with channel id instead of port id.

HighCVSS 7.8 · v3.1—No exploit Fix available

Denial of service

BDU:2024-10600

Published: Jun 20, 2024
Updated: Aug 5, 2026
EPSS: 0.4% · 38th percentile
CWE: CWE-400

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Linux: 7.8; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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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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.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

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

linux linux kernel5.14 and later · before 5.15.22
linux linux kernel5.16 and later · before 5.16.8
linux linux kernel5.17

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
- 5.14affected
- e8ba1e05bdc016700c85fad559a812c2e795442f and later · before aa7152f9f117b3e66b3c0d4158ca4c6d46ab229faffected · git
- e8ba1e05bdc016700c85fad559a812c2e795442f and later · before 9167f2712dc8c24964840a4d1e2ebf130e846b95affected · git
- e8ba1e05bdc016700c85fad559a812c2e795442f and later · before c5c1546a654f613e291a7c5d6f3660fc1eb6d0c7affected · git
- before 5.14not affected · semver
- 5.15.22 and later · up to and including 5.15.*not affected · semver
- 5.16.8 and later · up to and including 5.16.*not affected · semver
- 5.17 and laternot affected · original_commit_for_fix

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 5.16.10-1	5.16.10-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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
CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
83Now

Published before and after this one in the same product

← EarlierCVE-2022-48714Jun 20, 2024 · bpf: Use VM_MAP instead of VM_ALLOC for ringbuf
28Monitor
← EarlierCVE-2022-48715Jun 20, 2024 · scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe
22Monitor
Later →CVE-2022-48717Jun 20, 2024 · ASoC: max9759: fix underflow in speaker_gain_control_put()
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 / package	Fixed version	Source
Linux Linux	9167f2712dc8c24964840a4d1e2ebf130e846b95	Vendor (CNA)
Linux Linux	aa7152f9f117b3e66b3c0d4158ca4c6d46ab229f	Vendor (CNA)
Linux Linux	c5c1546a654f613e291a7c5d6f3660fc1eb6d0c7	Vendor (CNA)
azl3 kernel 6.6.78.1-3 on Azure Linux 3.0	6.6.82.1-1 · CBL-Mariner Releases	Microsoft (MSRC)
debian:linux	5.16.10-1 · Debian:12	Package 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.

CVE-2024-394625 days apartclk: bcm: dvp: Assign ->num before accessing ->hws
39Monitor
CVE-2021-44405 days apartx86/xen: Drop USERGS_SYSRET64 paravirt call
35Monitor
CVE-2021-4731330 days apartcpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init
33Monitor
CVE-2024-386161 days apartwifi: carl9170: re-fix fortified-memset warning
32Monitor
CVE-2021-47023113 days apartnet: marvell: prestera: fix port event handling on init
32Monitor
CVE-2024-383844 days apartblk-cgroup: fix list corruption from reorder of WRITE ->lqueued
31Monitor

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-24-0733 · Jun 24, 2024(Linux Kernel Güncellemesi)

All national notices →

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-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

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

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

Endpoint Denial of ServiceT1499

Change log

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

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

References

git.kernel.org/stable/c/9167f2712dc8c24964840a4d1e2ebf130e846b95

Show all references (2 more)

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

All records