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VulnerabilityPublished Updated

CVE-2026-98341: Linux kernel · wifi: cfg80211: don't free driver-owned scan requests

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High · fixed in e8c75736cfd0c6c87562cda2312e3fe5e2227955 : patch Linux kernel soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e8c75736cfd0c6c87562cda2312e3fe5e2227955, dab68a74e90b8e07f08ed9deaa5884857a3cfe89, cf6da29d17994865f73ca70976495ea856909c63
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Linux kernel to e8c75736cfd0c6c87562cda2312e3fe5e2227955, dab68a74e90b8e07f08ed9deaa5884857a3cfe89 or cf6da29d17994865f73ca70976495ea856909c63.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 4a58e7c38443154fce1b47910e1a9184f65c5d72, < e8c75736cfd0c6c87562cda2312e3fe5e2227955
Fixed in
  • e8c75736cfd0c6c87562cda2312e3fe5e2227955
LinuxLinuxAffected
  • ≥ 4a58e7c38443154fce1b47910e1a9184f65c5d72, < dab68a74e90b8e07f08ed9deaa5884857a3cfe89
Fixed in
  • dab68a74e90b8e07f08ed9deaa5884857a3cfe89
LinuxLinuxAffected
  • ≥ 4a58e7c38443154fce1b47910e1a9184f65c5d72, < cf6da29d17994865f73ca70976495ea856909c63
Fixed in
  • cf6da29d17994865f73ca70976495ea856909c63
LinuxLinuxAffected
  • =3.14
Fixed in–

AI-suggested

A fix is available and has been applied in the Linux kernel commits identified by hashes e8c75736cfd0c6c87562cda2312e3fe5e2227955, dab68a74e90b8e07f08ed9deaa5884857a3cfe89, and cf6da29d17994865f73ca70976495ea856909c63. Users and administrators should update to a Linux kernel version including these fixes to mitigate the vulnerability.

Description

CVE-2026-98341 is a use-after-free vulnerability in the Linux kernel's wifi cfg80211 subsystem. It occurs when a network interface goes down during an ongoing scan, leading to a race condition where both the kernel and the driver believe they own the scan request. This results in a use-after-free in the scan_done() function. The issue has been addressed by tracking driver ownership more carefully and removing problematic warnings.

References

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