# ppp_async: drop the errored frame instead of resetting its headroom

CVE record · `CVE-2026-98158`

- **Identifiers:** `CVE-2026-98158`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:36 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before 25f354c55b8435d1f51b8a0a05a3cfe429358523` (git)
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before a86a17745c3e1c6fadd4d6e90c03552dfe531c8c` (git)
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before ff035780adb0f49dc2c7ada26b4697849a68bec8` (git)
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before c4bb894362d224b699e2f95c6c26707d9654e4a3` (git)
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before d0fc3dabfe67caf084e7119ceb2ee23f5ad2f2da` (git)
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before 0c53eb14975f029abd6b26896a460f0d2aaefe6b` (git)
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before 717137221c7d90e7c98bda9a370c9da6cbf015e5` (git)
  - affected: `6722e78c90054101e6797d5944cdc81af9897a0a to before 8dc5d98a16fa23c00999aecf10018c9f69fa5bf4` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.15`
  - unaffected: `before 2.6.15` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0011, the 1st percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98158](https://www.cve.org/CVERecord?id=CVE-2026-98158)
- [NVD: CVE-2026-98158](https://nvd.nist.gov/vuln/detail/CVE-2026-98158)

### References from the CNA

- <https://git.kernel.org/stable/c/25f354c55b8435d1f51b8a0a05a3cfe429358523>
- <https://git.kernel.org/stable/c/a86a17745c3e1c6fadd4d6e90c03552dfe531c8c>
- <https://git.kernel.org/stable/c/ff035780adb0f49dc2c7ada26b4697849a68bec8>
- <https://git.kernel.org/stable/c/c4bb894362d224b699e2f95c6c26707d9654e4a3>
- <https://git.kernel.org/stable/c/d0fc3dabfe67caf084e7119ceb2ee23f5ad2f2da>
- <https://git.kernel.org/stable/c/0c53eb14975f029abd6b26896a460f0d2aaefe6b>
- <https://git.kernel.org/stable/c/717137221c7d90e7c98bda9a370c9da6cbf015e5>
- <https://git.kernel.org/stable/c/8dc5d98a16fa23c00999aecf10018c9f69fa5bf4>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-98158>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98158/>. Everything for agents: <https://agentprime.io/llms.txt>.