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

CVE-2026-98936: wifi: ath11k: reset ar->num_stations on hardware start

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 302b622d5f3c9ef5efa36e41e69d278599265cfc, 5f814ca9a68fd12a51fe82c36a4a876f5b8329f1, 60142eb2afda34508e640a3ff2a54c90e51525cc; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 302b622d5f3c9ef5efa36e41e69d278599265cfc, 5f814ca9a68fd12a51fe82c36a4a876f5b8329f1, 60142eb2afda34508e640a3ff2a54c90e51525cc; azl3 kernel 6.6.157.1-1 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: wifi: ath11k: reset ar->num_stations on hardware start When (multiple) hw restart occurs, we end up in a situation where we cannot accept new stations / mesh peers. This seems to be the 'num_stations' in 'struct ath11k' that did not get reset properly in this case. In ath11k_mac_op_start(), it was indeed the only accounting var that did not get reset so let's clear it too. This avoids problems like those: [1248828.088023] WARNING: CPU: 0 PID: 12281 at net/mac80211/util.c:1682 ieee80211_reconfig_stations+0x98/0xc0 [1248828.088115] Call trace: [1248828.088116] ieee80211_reconfig_stations+0x98/0xc0 (P) [1248828.088119] ieee80211_reconfig+0x774/0x1438 [1248828.088123] ieee80211_restart_work+0x10c/0x178 [1248828.088127] process_one_work+0x178/0x3c0 [1248828.088130] worker_thread+0x280/0x440 [1248828.088133] kthread+0xe0/0xf8 [1248828.088137] ret_from_fork+0x10/0x20 [1248828.088141] ---[ end trace 0000000000000000 ]--- [1248836.686604] ath11k_pci 0000:04:00.0: refusing to associate station: too many connected already (128) [1248836.686609] ath11k_pci 0000:04:00.0: Failed to add station: xx:xx:xx:xx:xx:xx for VDEV: 1 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1

—No exploit Fix available
Published
Oct 23, 2026
Updated
Oct 30, 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%

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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

    • 5.6affected
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 302b622d5f3c9ef5efa36e41e69d278599265cfcaffected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 5f814ca9a68fd12a51fe82c36a4a876f5b8329f1affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before a78f2d082f72e3c140c4542cade7f7f56f3cc62daffected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 60142eb2afda34508e640a3ff2a54c90e51525ccaffected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before c3ac51701e925e8d50479ae2fddca51a09f636e8affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 9a9467f7cc633b31e4c34a2c56aa095e0c3fa853affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before c27779d3679c695674747744390f97a5424a0dc8affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 7e0ad05ebc72fffba2bdf2400400902d94ed7272affected · git
    • before 5.6not 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 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.10-17.2.10-1

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-2026-98934Oct 23, 2026 · ipv6: sr: use skb_get_hash_net() in seg6_make_flowlabel()
    0Monitor
  • ← EarlierCVE-2026-98935Oct 23, 2026 · rtc: dev: zero-initialize struct rtc_wkalrm to prevent information leak
    0Monitor
  • Later →CVE-2026-98937Oct 23, 2026 · perf/core: Check kernel access when kernel callchains are requested
    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 Linux302b622d5f3c9ef5efa36e41e69d278599265cfcVendor (CNA)
Linux Linux5f814ca9a68fd12a51fe82c36a4a876f5b8329f1Vendor (CNA)
Linux Linux60142eb2afda34508e640a3ff2a54c90e51525ccVendor (CNA)
Linux Linux7e0ad05ebc72fffba2bdf2400400902d94ed7272Vendor (CNA)
Linux Linux9a9467f7cc633b31e4c34a2c56aa095e0c3fa853Vendor (CNA)
Linux Linuxa78f2d082f72e3c140c4542cade7f7f56f3cc62dVendor (CNA)
Linux Linuxc27779d3679c695674747744390f97a5424a0dc8Vendor (CNA)
Linux Linuxc3ac51701e925e8d50479ae2fddca51a09f636e8Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · 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.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 6, 2026+14 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.

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