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NVD / CVE Program· CNA Linux

CVE-2026-72394: hwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero

—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: 0.20% (FIRST EPSS).
  • Fixed version: Linux Linux 898ca04b096b9e4640300eab91468c826a1ec92b, a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3, fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1.

Low priority for now. Upgrade to Linux Linux 898ca04b096b9e4640300eab91468c826a1ec92b, a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3, fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1 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: hwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero Sashiko reports: In the aspeed-g6-pwm-tacho driver, the aspeed_tach_val_to_rpm() function calculates the fan RPM using the tachometer value. However, it does not check if the tachometer value is zero before performing the division. If the hardware reports a tachometer value of 0 (which can happen due to an extremely fast pulse, a stuck edge, or a hardware glitch), the calculated tach_div evaluates to 0. The subsequent call to do_div() with tach_div as the divisor triggers a divide-by-zero exception, leading to a kernel panic. Check the divisor against zero to fix the problem.

Published
Aug 15, 2026
Updated
Aug 17, 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?

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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

    • 6.9affected
    • 7e1449cd15d1096157d1a9923b82e37602fb7eb0 and later · before a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3affected · git
    • 7e1449cd15d1096157d1a9923b82e37602fb7eb0 and later · before 898ca04b096b9e4640300eab91468c826a1ec92baffected · git
    • 7e1449cd15d1096157d1a9923b82e37602fb7eb0 and later · before fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1affected · git
    • 7e1449cd15d1096157d1a9923b82e37602fb7eb0 and later · before fe87b8dc67f1b2c64e76a66e78468c533d3c44caaffected · git
    • before 6.9not affected · semver
    • 6.12.97 and later · up to and including 6.12.*not affected · semver
    • 6.18.40 and later · up to and including 6.18.*not affected · semver
    • 7.1.5 and later · up to and including 7.1.*not affected · semver
    • 7.2 and laternot affected · original_commit_for_fix

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

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-2026-72391Aug 15, 2026 · net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy
    0Monitor
  • ← EarlierCVE-2026-72393Aug 15, 2026 · eth: fbnic: don't cache shinfo across skb realloc
    39Monitor
  • Later →CVE-2026-72399Aug 15, 2026 · net: enetc: check the number of BDs needed for xdp_frame
    39Monitor

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 Linux898ca04b096b9e4640300eab91468c826a1ec92bVendor (CNA)
Linux Linuxa3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3Vendor (CNA)
Linux Linuxfb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1Vendor (CNA)
Linux Linuxfe87b8dc67f1b2c64e76a66e78468c533d3c44caVendor (CNA)
debian:linux6.12.100-1 · Debian:13Package 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 (3 more)

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

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