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CVE-2026-98936

wifi: ath11k: reset ar->num_stations on hardware start

Products / packages Linux

Published

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Severity and exploitation

Not in CISA KEVNo CVSS score

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 21:15:32 UTC

Severity

unknown

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

In the Linux kernel, the following vulnerability has been resolved:

Source excerpt · Linux

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Linux · Linux

Linux

8 ranges
Linux version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

d5c65159f2895379e11ca13f62feabe93278985d → before 302b622d5f3c9ef5efa36e41e69d278599265cfc

git versions

d5c65159f2895379e11ca13f62feabe93278985d → before 5f814ca9a68fd12a51fe82c36a4a876f5b8329f1

git versions

d5c65159f2895379e11ca13f62feabe93278985d → before a78f2d082f72e3c140c4542cade7f7f56f3cc62d

git versions

d5c65159f2895379e11ca13f62feabe93278985d → before 60142eb2afda34508e640a3ff2a54c90e51525cc

git versions

d5c65159f2895379e11ca13f62feabe93278985d → before c3ac51701e925e8d50479ae2fddca51a09f636e8

git versions

d5c65159f2895379e11ca13f62feabe93278985d → before 9a9467f7cc633b31e4c34a2c56aa095e0c3fa853

git versions

d5c65159f2895379e11ca13f62feabe93278985d → before c27779d3679c695674747744390f97a5424a0dc8

git versions

d5c65159f2895379e11ca13f62feabe93278985d → before 7e0ad05ebc72fffba2bdf2400400902d94ed7272

git versions

unaffected

unknown

Other versions: unaffected

Linux · Linux

Linux

10 ranges
Linux version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

5.6

unaffected

0 → before 5.6

semver versions

5.10.273 → through 5.10.*

semver versions

5.15.224 → through 5.15.*

semver versions

6.1.191 → through 6.1.*

semver versions

6.6.160 → through 6.6.*

semver versions

6.12.113 → through 6.12.*

semver versions

6.18.56 → through 6.18.*

semver versions

7.2.10 → through 7.2.*

semver versions

7.3 → through *

original_commit_for_fix versions

unknown

Other versions: affected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

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

References

8 sources
git.kernel.org/stable/c/302b622d5f3c9ef5efa36e41e69d278599265cfc
Source referenceLinux
git.kernel.org/stable/c/5f814ca9a68fd12a51fe82c36a4a876f5b8329f1
Source referenceLinux
git.kernel.org/stable/c/a78f2d082f72e3c140c4542cade7f7f56f3cc62d
Source referenceLinux
git.kernel.org/stable/c/60142eb2afda34508e640a3ff2a54c90e51525cc
Source referenceLinux
git.kernel.org/stable/c/c3ac51701e925e8d50479ae2fddca51a09f636e8
Source referenceLinux
git.kernel.org/stable/c/9a9467f7cc633b31e4c34a2c56aa095e0c3fa853
Source referenceLinux
View 2 more references
git.kernel.org/stable/c/c27779d3679c695674747744390f97a5424a0dc8
Source referenceLinux
git.kernel.org/stable/c/7e0ad05ebc72fffba2bdf2400400902d94ed7272
Source referenceLinux

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification · not supplied
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-98936

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

Linux · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 5.10.273

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 5.15.224

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 6.1.191

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 6.6.160

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 6.12.113

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 6.18.56

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 7.2.10

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.6

Before: 7.3

Applicability preview
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  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "5.6",
            "versionEndExcluding": "5.10.273"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "5.6",
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            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "5.6",
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            "vulnerable": true,
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            "versionStartIncluding": "5.6",
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          {
            "vulnerable": true,
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Contributing organizations · 1
Linux

Assigning organization

2026-10-30

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

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No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.