CVE-2026-97411: Linux kernel · net: ibm: emac: mal: fix potential system hang in mal_remove()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 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 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther 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 corrects mal_remove() to call napi_disable() only when appropriate, preventing the kernel hang. Users should apply the official patch or update to a fixed kernel version that includes this correction.
Description
A vulnerability in the Linux kernel's IBM EMAC MAL driver could cause a system hang during module removal. The issue arises because the function mal_remove() calls napi_disable() unconditionally, but napi_disable() is not idempotent and calling it on an already-disabled or unenabled NAPI context causes the kernel to spin indefinitely. The fix ensures napi_disable() is only called if the commac list is not empty, indicating NAPI is enabled.
References
- ubuntu.com/security/CVE-2026-97411 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97411 (opens in a new tab)
- git.kernel.org/stable/c/7c5d41f87f079990bf241359e3c1332d8d10fe87 (opens in a new tab)
- git.kernel.org/stable/c/c4cb9a728df66c46067b26263f5beb633aae4087 (opens in a new tab)
- git.kernel.org/stable/c/f6c1aad9b35fa083f48ce0c5926204891d82e089 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97411 (opens in a new tab)
- git.kernel.org/stable/c/34c4cae51718d6f393415e01c61314c1bde02f2e (opens in a new tab)
- git.kernel.org/stable/c/62126e73e230cf4bd6c27cf201949c4290af84a1 (opens in a new tab)
- git.kernel.org/stable/c/9c1c814a662d9c81959eba591bb52b24639390f2 (opens in a new tab)
- git.kernel.org/stable/c/f0399b3e212741bc5a64b8399d6266c4a150bdfe (opens in a new tab)