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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98308: ALSA: hda: trace PCM open only after assigning a stream

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 0a52ba6d3b268bb82f0ec4cb861bc68d252369c0, 3c6ca6d9342f4a0be7c1413180e11023d13b5cde, 3db8afba2d210b7d80cd5cc6b76d7f46daa9b47a; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 0a52ba6d3b268bb82f0ec4cb861bc68d252369c0, 3c6ca6d9342f4a0be7c1413180e11023d13b5cde, 3db8afba2d210b7d80cd5cc6b76d7f46daa9b47a; 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: hda: trace PCM open only after assigning a stream Stream assignment can fail when hardware streams are exhausted. Move the tracepoint after the NULL check because its payload accesses the assigned stream tag. Detected by static analysis and reviewed with AI-assisted source auditing.

—No exploit Fix available
Published
Oct 6, 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-2026-98308

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.

—

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

    • 4.2affected
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before 5a4c974dee03cc46eac43c82f33e34ec94f0b348affected · git
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before fba079ea22822248c82c3a999c88676d05b17bdaaffected · git
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before 3c6ca6d9342f4a0be7c1413180e11023d13b5cdeaffected · git
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before 0a52ba6d3b268bb82f0ec4cb861bc68d252369c0affected · git
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before 5c89e7965220e85d06ae4c58adb7d7bb6da2440caffected · git
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before 8477643cb91c9e09ac1b11890eef421ae63e53f7affected · git
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before 3db8afba2d210b7d80cd5cc6b76d7f46daa9b47aaffected · git
    • 184865085b88789fc8a355cc16ceff25f82f63ba and later · before c9e6e5f38bf75276605f1952b22285f5f3abcaffaffected · git
    • before 4.2not affected · 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 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.8-17.2.8-1

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-2026-98306Oct 6, 2026 · seg6: set IPSKB_L3SLAVE from IP6SKB_L3SLAVE on IPIP decapsulation
    0Monitor
  • ← EarlierCVE-2026-98307Oct 6, 2026 · wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()
    0Monitor
  • Later →CVE-2026-98309Oct 6, 2026 · drm/vc4: Use managed KMS polling to fix UAF on unbind
    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 Linux0a52ba6d3b268bb82f0ec4cb861bc68d252369c0Vendor (CNA)
Linux Linux3c6ca6d9342f4a0be7c1413180e11023d13b5cdeVendor (CNA)
Linux Linux3db8afba2d210b7d80cd5cc6b76d7f46daa9b47aVendor (CNA)
Linux Linux5a4c974dee03cc46eac43c82f33e34ec94f0b348Vendor (CNA)
Linux Linux5c89e7965220e85d06ae4c58adb7d7bb6da2440cVendor (CNA)
Linux Linux8477643cb91c9e09ac1b11890eef421ae63e53f7Vendor (CNA)
Linux Linuxc9e6e5f38bf75276605f1952b22285f5f3abcaffVendor (CNA)
Linux Linuxfba079ea22822248c82c3a999c88676d05b17bdaVendor (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:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~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.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 3, 2026+28 d
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

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. Exploit maturity— → none
  2. 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