Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2026-98066: ALSA: caiaq: Fix potential double-free at error path

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 1dd715ca0568e4833ed5878f49b028b449941096, 2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8, 3b26ceef88c110f4d188387cffa0df78657be904; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1dd715ca0568e4833ed5878f49b028b449941096, 2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8, 3b26ceef88c110f4d188387cffa0df78657be904; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 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: ALSA: caiaq: Fix potential double-free at error path The fix for caiaq driver's resource management to handle the errors tries to release the resources in a common destructor call, but as a sashiko review for another patch suggested, some of the audio resources such as URBs have been already freed, and this may lead to a double-free. For addressing the double-free, call the common destructor function from each place, and assure that the resource pointers get cleared.

—No exploit Fix available
Published
Sep 25, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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-2026-98066

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

—

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

    • 096dd8519cf2f768e9e14f224b627f7aaee1a9c5, 7.1affected
    • da938aa9fc7826901921dcea225948ab21a97e45 and later · before ddfff1cec52b7deec6c770ba85de4dab6221d0a2affected · git
    • 09616e25f502080ba684fc7fcf959d1376ab756d and later · before da93fd9002d980bb02b729c5d5aeefeb252dd110affected · git
    • b956e48371f2ff72b76be9a829800ecec963bd45 and later · before b6cd6f1664a0bc8038b9baa7e6f5fe8e4142d056affected · git
    • f537e3ad69609f6924a4db6b4a7f6561f5288bdd and later · before 75b20534d7a37e091db585f8b505a3b77b7e81a8affected · git
    • 6251e3e256337a30160ef59ab1580dde4d1acd28 and later · before 2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8affected · git
    • e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 and later · before 1dd715ca0568e4833ed5878f49b028b449941096affected · git
    • 28abd224db4a49560b452115bca3672a20e45b2f and later · before b629ae7b3eddc6812d5af3614b8c1bd76d65fa75affected · git
    • 28abd224db4a49560b452115bca3672a20e45b2f and later · before 3b26ceef88c110f4d188387cffa0df78657be904affected · git
    • 5.10.258 and later · before 5.10.271affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.7-17.2.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-98064Sep 25, 2026 · bpf: Fix NULL-ptr-deref when showing a void BTF type
    0Monitor
  • ← EarlierCVE-2026-98065Sep 25, 2026 · bpf: Reject key-less BTF for hash maps
    0Monitor
  • Later →CVE-2026-98067Sep 25, 2026 · erofs: disable LZ4 rolling decompression for now
    0Monitor

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 Linux1dd715ca0568e4833ed5878f49b028b449941096Vendor (CNA)
Linux Linux2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8Vendor (CNA)
Linux Linux3b26ceef88c110f4d188387cffa0df78657be904Vendor (CNA)
Linux Linux5.10.271Vendor (CNA)
Linux Linux5.15.222Vendor (CNA)
Linux Linux6.1.189Vendor (CNA)
Linux Linux6.12.111Vendor (CNA)
Linux Linux6.18.53Vendor (CNA)
Linux Linux6.6.158Vendor (CNA)
Linux Linux7.1Vendor (CNA)
Linux Linux75b20534d7a37e091db585f8b505a3b77b7e81a8Vendor (CNA)
Linux Linuxb629ae7b3eddc6812d5af3614b8c1bd76d65fa75Vendor (CNA)
Linux Linuxb6cd6f1664a0bc8038b9baa7e6f5fe8e4142d056Vendor (CNA)
Linux Linuxda93fd9002d980bb02b729c5d5aeefeb252dd110Vendor (CNA)
Linux Linuxddfff1cec52b7deec6c770ba85de4dab6221d0a2Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

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

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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