# erofs: skip sufficiently large global buffers when resizing

CVE record · `CVE-2026-89602`

- **Identifiers:** `CVE-2026-89602`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:45 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: `d6db47e571dcaecaeaafa8840d00ae849ae3907b to before 3fbdd15d5830f52661eb78be95058d101cb0c2cb` (git)
  - affected: `d6db47e571dcaecaeaafa8840d00ae849ae3907b to before 7267557ce98ccd07faaf3bc86382448950cc4ff6` (git)
  - affected: `d6db47e571dcaecaeaafa8840d00ae849ae3907b to before 7f4a89d4f0d6acaf4b756c31de48f2109a257b70` (git)
  - affected: `d6db47e571dcaecaeaafa8840d00ae849ae3907b to before a7d097cf01301c5da37927c8f26123d006f0fd8a` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 14 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89602](https://www.cve.org/CVERecord?id=CVE-2026-89602)
- [NVD: CVE-2026-89602](https://nvd.nist.gov/vuln/detail/CVE-2026-89602)

### References from the CNA

- <https://git.kernel.org/stable/c/3fbdd15d5830f52661eb78be95058d101cb0c2cb>
- <https://git.kernel.org/stable/c/7267557ce98ccd07faaf3bc86382448950cc4ff6>
- <https://git.kernel.org/stable/c/7f4a89d4f0d6acaf4b756c31de48f2109a257b70>
- <https://git.kernel.org/stable/c/a7d097cf01301c5da37927c8f26123d006f0fd8a>

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-2026-89602>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89602/>. Everything for agents: <https://agentprime.io/llms.txt>.