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

CVE-2026-98494: net: atl1: fix soft lockup on out-of-range cmb_tpd_next_to_clean read

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 0f573b0576252d44fb27ab8470ea873bc6408ef3, 43e746821f5f5afbbf68e388bf9fbe221e03bfca, 5d7ac337d37cb97d77e4c910d37746694b606661; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0f573b0576252d44fb27ab8470ea873bc6408ef3, 43e746821f5f5afbbf68e388bf9fbe221e03bfca, 5d7ac337d37cb97d77e4c910d37746694b606661; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: net: atl1: fix soft lockup on out-of-range cmb_tpd_next_to_clean read Same issue as atl1c (see the first commit in this series, "net: atl1c: fix soft lockup on out-of-range tpd_cons read"): the hardware can report an out-of-range cmb_tpd_next_to_clean (seen as 0xffff) while the PCIe link/MAC is resetting. An out-of-range value can never be reached and the loop below would spin forever. Treat it as "nothing new to clean" instead.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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%

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

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When you'll hear from us

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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

    • 2.6.21affected
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before 5d7ac337d37cb97d77e4c910d37746694b606661affected · git
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before c55e51d5899e80f9593b26985ed0b89e0c828a5eaffected · git
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before 6ab9f61ca851f02ae4398cebaf00735a22e1d6caaffected · git
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before 632cd7b81cb7bab36112f02eb2ee7f7cc1214fb1affected · git
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before 79e2447b11322c27ef9ac423be0a94efc7691f02affected · git
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before 0f573b0576252d44fb27ab8470ea873bc6408ef3affected · git
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before 6285919d4c06254d257d24dc980f6332e1984a82affected · git
    • f3cc28c797604fa1cda4aef3f250f465de54a0ca and later · before 43e746821f5f5afbbf68e388bf9fbe221e03bfcaaffected · git
    • before 2.6.21not 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 7.2.9-17.2.9-1

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-2026-98492Oct 18, 2026 · net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths
    0Monitor
  • ← EarlierCVE-2026-98493Oct 18, 2026 · net: ipconfig: bound DHCP option construction
    0Monitor
  • Later →CVE-2026-98495Oct 18, 2026 · net: arp: terminate device name before lookup
    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 Linux0f573b0576252d44fb27ab8470ea873bc6408ef3Vendor (CNA)
Linux Linux43e746821f5f5afbbf68e388bf9fbe221e03bfcaVendor (CNA)
Linux Linux5d7ac337d37cb97d77e4c910d37746694b606661Vendor (CNA)
Linux Linux6285919d4c06254d257d24dc980f6332e1984a82Vendor (CNA)
Linux Linux632cd7b81cb7bab36112f02eb2ee7f7cc1214fb1Vendor (CNA)
Linux Linux6ab9f61ca851f02ae4398cebaf00735a22e1d6caVendor (CNA)
Linux Linux79e2447b11322c27ef9ac423be0a94efc7691f02Vendor (CNA)
Linux Linuxc55e51d5899e80f9593b26985ed0b89e0c828a5eVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package 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 5, 2026+17 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).

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. 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