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NVD / CVE Program· CNA Linux

CVE-2026-90116: ALSA: mtpav: shut down output timer before card teardown

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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 1e16e82581521a2fe20eda29bdc9e75286f7c950, 392c985c6b03dfdf4904c0d464f18735ca3c4df8, 793163e134028e7136c9dd9e30f7f656de1eabba.

Low priority for now. Upgrade to Linux Linux 1e16e82581521a2fe20eda29bdc9e75286f7c950, 392c985c6b03dfdf4904c0d464f18735ca3c4df8, 793163e134028e7136c9dd9e30f7f656de1eabba 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: mtpav: shut down output timer before card teardown snd_mtpav_output_timer() rearms chip->timer while holding chip->spinlock and accesses the card-private mtpav state. snd_mtpav_free() currently takes the same lock and calls timer_delete() when the timer is active. This only removes a pending timer; it does not wait for a callback that is already running and does not prevent the callback from rearming the timer. A callback running on another CPU can therefore continue after snd_mtpav_free() releases the lock and access the card-private state while the card is being torn down. It can also rearm the timer after timer_delete() has returned. Call timer_shutdown_sync() without holding chip->spinlock. This waits for any running callback to finish and prevents further rearming before the card-private mtpav state is released.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 30, 2026
EPSS
0.2% · 11th 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 · 0.2%

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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

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a9435a1f14a6f9520452617343ea59bb35ba9e79affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 793163e134028e7136c9dd9e30f7f656de1eabbaaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before de75857ce374671712e1d9528844e3c0543dcef6affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 392c985c6b03dfdf4904c0d464f18735ca3c4df8affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 1e16e82581521a2fe20eda29bdc9e75286f7c950affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before c73cb5b7c159246dd572277c668851a56e516019affected · git
    • before 2.6.12not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver
    • 6.6.160 and later · up to and including 6.6.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:13linuxbefore 6.12.115-26.12.115-2
Debian:14linuxbefore 7.2.6-17.2.6-1

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-2026-90114Sep 17, 2026 · net: bridge: Reject descending VLAN tunnel ranges
    0Monitor
  • ← EarlierCVE-2026-90115Sep 17, 2026 · xsk: fix NULL pointer dereference in __xsk_rcv()
    0Monitor
  • Later →CVE-2026-90117Sep 17, 2026 · ntfs: validate usa_ofs before preserving the update sequence number
    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 Linux1e16e82581521a2fe20eda29bdc9e75286f7c950Vendor (CNA)
Linux Linux392c985c6b03dfdf4904c0d464f18735ca3c4df8Vendor (CNA)
Linux Linux793163e134028e7136c9dd9e30f7f656de1eabbaVendor (CNA)
Linux Linuxa9435a1f14a6f9520452617343ea59bb35ba9e79Vendor (CNA)
Linux Linuxc73cb5b7c159246dd572277c668851a56e516019Vendor (CNA)
Linux Linuxde75857ce374671712e1d9528844e3c0543dcef6Vendor (CNA)
debian:linux6.12.115-2 · Debian:13Package registry (OSV)
debian:linux7.2.6-1 · Debian:14Package 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

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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. Fix✗ → ✓

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References

Show all references (5 more)

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

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