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NVD / CVE Program· CNA Linux

CVE-2026-93279: staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown

—No exploit Fix available

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: 0.19% (FIRST EPSS).
  • Fixed version: Linux Linux 03d12490afd1198310ad0aba42462329832eb739, 2c0c9956596e48654bb4855e2a0742748a0826a7, 32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 03d12490afd1198310ad0aba42462329832eb739, 2c0c9956596e48654bb4855e2a0742748a0826a7, 32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 Release Notes 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: staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown The TX cleanup tasklet can be scheduled by the watchdog IRQ handler to execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in the queue which might run after the cvm_oct_remove() frees net_device structures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it iterates cvm_oct_device[] which is an array of netdevice pointers. Add tasklet_kill() after free_irq() to ensure the tasklet is no longer scheduled or running before teardown proceeds.

Published
Sep 24, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 9th 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%

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  • Not in KEV: no record of exploitation in the wild
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Noroxi analysis

What does it mean in your environment?

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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

    • 2.6.34affected
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before 32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486affected · git
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before d15226338dfaa84ffff142d32723cdf74d0c47c4affected · git
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19affected · git
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before b6365e4186322858a82c8713b1d0bd209c8e765aaffected · git
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before 03d12490afd1198310ad0aba42462329832eb739affected · git
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before 2c0c9956596e48654bb4855e2a0742748a0826a7affected · git
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before 41a79bd9e5a74f8f483b3b206d10567912874fb4affected · git
    • 4898c560103fb8075c10a8e9d70e0ca26873075e and later · before b9af44b0d20b2247c4eb0ea5cfca907d643eea50affected · git
    • before 2.6.34not 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 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
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-2026-93277Sep 24, 2026 · RDMA/bnxt_re: Validate udata before executing commands
    31Monitor
  • ← EarlierCVE-2026-93278Sep 24, 2026 · staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
    0Monitor
  • Later →CVE-2026-93280Sep 24, 2026 · greybus: audio: bound the topology section sizes against the fetched size
    35Monitor

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 Linux03d12490afd1198310ad0aba42462329832eb739Vendor (CNA)
Linux Linux2c0c9956596e48654bb4855e2a0742748a0826a7Vendor (CNA)
Linux Linux32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486Vendor (CNA)
Linux Linux41a79bd9e5a74f8f483b3b206d10567912874fb4Vendor (CNA)
Linux Linuxa77efd85e0d48c877f66d2bc3ab89cc1b8dacd19Vendor (CNA)
Linux Linuxb6365e4186322858a82c8713b1d0bd209c8e765aVendor (CNA)
Linux Linuxb9af44b0d20b2247c4eb0ea5cfca907d643eea50Vendor (CNA)
Linux Linuxd15226338dfaa84ffff142d32723cdf74d0c47c4Vendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0Release 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).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.

References

Show all references (7 more)

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

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