CVE-2026-98957: Linux kernel · wifi: mt76: mt7915: disable rx napi when removing device
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 02:13 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10linuxpkg:deb/ubuntu/linux?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-oraclepkg:deb/ubuntu/linux-oracle?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available that disables the receive NAPI inside the mt7915e driver during device removal. Users should update to kernel versions that include this fix to prevent system instability when unloading and reloading the mt7915e module. No additional mitigation steps are indicated.
Description
A vulnerability in the Linux kernel's mt7915 WiFi driver causes system instability when unloading and reloading the mt7915e module. The issue arises because the driver does not disable the receive NAPI (New API) before removing the device, triggering warnings and instability especially on MT7916 hardware when changing frequency parameters.
References
- ubuntu.com/security/CVE-2026-98957 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98957 (opens in a new tab)
- git.kernel.org/stable/c/0281dac1e213329b053fb02e612de7f1477a52d7 (opens in a new tab)
- git.kernel.org/stable/c/0f9afe238eeb79829f0f92f376ba3a20781caccd (opens in a new tab)
- git.kernel.org/stable/c/7199ee4b47de0b61fa6455a1587c5ab645ebe262 (opens in a new tab)
- git.kernel.org/stable/c/916c484d29d82f45c281da2786fcd6a1284430ce (opens in a new tab)