netfilter: flowtable: generalize pending status bit
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EPSS probability
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Published
21 h ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
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Evidence confidence
%61
Short explanation
A vulnerability in the Linux kernel netfilter flowtable subsystem has been addressed to prevent a race condition between the garbage collector (GC) and the hardware offload handler.
Synchronization issues between the garbage collector worker and statistics scheduling mechanisms can lead to instability or inconsistent states within the netfilter component.
What should be done?
- Follow vendor advisories and updates
- Review patch sets for the respective kernel versions
The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.
Chain of evidence and sources
Linux çekirdeği netfilter flowtable bileşeninde çöp toplayıcı işleyicisi ile donanım offload işleyicisi arasında yarış durumu giderilmiştir.
NF_FLOW_HW_PENDING durumu NF_FLOW_PENDING olarak yeniden adlandırılmış ve GC işleyicisini engellemek için kullanılmaya başlanmıştır.
Show the technical text from the sources
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: generalize pending status bit Rename NF_FLOW_HW_PENDING to NF_FLOW_PENDING and use it to inhibit the flowtable GC worker until pending hw offload work has been completed. Apparently, nf_flow_offload_stats() can schedule work to retrieve stats while the flow is being removed by GC. And this bit can also be used in a follow up patch to disable GC until the flow has been fully added in both directions. Revert the reordering done in commit d644b23afe1e ("netfilter: flowtable: publish HW_DEAD after worker is done") to prevent a race between GC and hw offload handler.
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
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| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-98792 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-98792 weaknesses.
Official Sources and Advisories
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