CVE-2026-98616: Linux kernel · eth: fbnic: reset num_napi when the napi vectors are freed
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in c5b5aee41b9f5ed0743344be1c7b544555fa3cb9 : patch Linux kernel soon.
Data as of 26 Oct 2026, 13:47 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in c5b5aee41b9f5ed0743344be1c7b544555fa3cb9, 4f4b767ffea7653a00904383908536e754f8ef5b, 4bcc4a92c603fe7f062cea22e20da2e0ad6b12c3
Exploitation evidence
Disclosed: evidence found.
CVE published 18 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
Upgrade Linux kernel to c5b5aee41b9f5ed0743344be1c7b544555fa3cb9, 4f4b767ffea7653a00904383908536e754f8ef5b or 4bcc4a92c603fe7f062cea22e20da2e0ad6b12c3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
Linuxlinux/kernelpkg:rpm/linux/kernelOther 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 in the Linux kernel source as indicated by the fixed commit versions. Users should update to a Linux kernel version containing these fixes to prevent the issue. No additional mitigation is required beyond applying the official patch.
Description
A vulnerability in the Linux kernel's fbnic network driver involves improper handling of the num_napi count when freeing napi vectors during power management suspend and resume operations. This can lead to a kernel NULL pointer dereference and crash when the driver attempts to access freed vectors during device removal or unbind.