VulnerabilityPublished 18 Oct 2026

CVE-2026-98804: Linux kernel · net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk()

Source GCVE Database

Authoritative record:CVE-2026-98804· High

Not known to be exploited · fixed in f78d45d5f1ac4141a03f033141368671da4293e4 : patch Linux kernel soon.

Data as of 26 Oct 2026, 13:47 UTC

Severity

High

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 f78d45d5f1ac4141a03f033141368671da4293e4, bdea4980182e3badac74f04df6c07492b91c569e, 0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c

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-4g8w-5g3m-vf26

What to do

Upgrade Linux kernel to f78d45d5f1ac4141a03f033141368671da4293e4, bdea4980182e3badac74f04df6c07492b91c569e or 0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ fcc680a647ba77370480fe753664cc10d572b240, < f78d45d5f1ac4141a03f033141368671da4293e4	Fixed in f78d45d5f1ac4141a03f033141368671da4293e4
LinuxLinux	Affected ≥ fcc680a647ba77370480fe753664cc10d572b240, < bdea4980182e3badac74f04df6c07492b91c569e	Fixed in bdea4980182e3badac74f04df6c07492b91c569e
LinuxLinux	Affected ≥ fcc680a647ba77370480fe753664cc10d572b240, < 0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c	Fixed in 0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c
LinuxLinux	Affected =6.14	Fixed in–

AI-suggested

A fix has been applied in the Linux kernel source code to move the stats update under the lock, preventing the use-after-free condition. Users should update their Linux kernel to a version that includes this fix. Since this is a kernel-level issue, applying the official kernel update or patch from the Linux vendor is the recommended remediation.

Description

A use-after-free vulnerability in the Linux kernel's page_pool subsystem was resolved. The issue occurs in the function page_pool_recycle_ring_bulk() when CONFIG_PAGE_POOL_STATS=y is enabled. The vulnerability arises because recycle stats are updated after releasing a lock, allowing the pool to be freed prematurely, leading to a use-after-free condition. The fix involved moving the stats update back under the lock to prevent this race condition.

References

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