VulnerabilityPublished 18 Oct 2026

CVE-2026-98630: Linux kernel · eth: fbnic: Fix payload page pool error cleanup

Source GCVE Database

Authoritative record:CVE-2026-98630

Not known to be exploited · fixed in f4277b19edbc6abc9e1db7d6f6148608e8cb3c34 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity

Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f4277b19edbc6abc9e1db7d6f6148608e8cb3c34, 8e0b235bd918d06f54ba8fddd2c3ddc36ca59c15, 4bab07f7b74e59bb26032fa5ff6969d63e1c52ef

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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-4rvg-g69w-74q7

What to do

Upgrade Linux kernel to f4277b19edbc6abc9e1db7d6f6148608e8cb3c34, 8e0b235bd918d06f54ba8fddd2c3ddc36ca59c15 or 4bab07f7b74e59bb26032fa5ff6969d63e1c52ef.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 8a11010fdd9615e8dbb2f5d562ab88caa8a9516a, < f4277b19edbc6abc9e1db7d6f6148608e8cb3c34	Fixed in f4277b19edbc6abc9e1db7d6f6148608e8cb3c34
LinuxLinux	Affected ≥ 8a11010fdd9615e8dbb2f5d562ab88caa8a9516a, < 8e0b235bd918d06f54ba8fddd2c3ddc36ca59c15	Fixed in 8e0b235bd918d06f54ba8fddd2c3ddc36ca59c15
LinuxLinux	Affected ≥ 8a11010fdd9615e8dbb2f5d562ab88caa8a9516a, < 4bab07f7b74e59bb26032fa5ff6969d63e1c52ef	Fixed in 4bab07f7b74e59bb26032fa5ff6969d63e1c52ef
LinuxLinux	Affected =6.18	Fixed in–

AI-suggested

A fix for this vulnerability has been implemented in the Linux kernel. Users should apply the official kernel updates that include this correction. Since no vendor advisory or patch links are provided, check the Linux kernel official repositories or security advisories for the relevant patch and update accordingly.

Description

A vulnerability in the Linux kernel's fbnic Ethernet driver was fixed involving improper cleanup of the payload page pool when allocation fails. The error pointer was incorrectly passed to the cleanup function, potentially causing a dereference of an error pointer and leaving the header page pool allocated.

References

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