# f2fs: fix to clear dirty flag on folio in error path

CVE record · `CVE-2026-89832`

- **Identifiers:** `CVE-2026-89832`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:31 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: `b42b179bda9ff11075a6fc2bac4d9e400513679a to before 9e0d9a317ce2cae3768626599d857bb3f0fd96fc` (git)
  - affected: `b42b179bda9ff11075a6fc2bac4d9e400513679a to before 21b7f66716b4fd0dffac4fcd06602b888f3c4531` (git)
  - affected: `b42b179bda9ff11075a6fc2bac4d9e400513679a to before 34732e3a8713f3b7acd1a0ea37e3a6bee4c78550` (git)
  - affected: `b42b179bda9ff11075a6fc2bac4d9e400513679a to before ab35ae07f2b5b4e118ea47b88577fc7d0e797b17` (git)
  - affected: `b42b179bda9ff11075a6fc2bac4d9e400513679a to before 3923ec2b98c96dda4a8bfab81d22553dbf0dd6c2` (git)
  - affected: `b42b179bda9ff11075a6fc2bac4d9e400513679a to before 5b86eab84ac8e9289b5afc52ef88ab18ba5bacab` (git)
  - affected: `8d7ebdd109b4654ec5e0e9c3c6f08b06d6558f10` (git)
  - affected: `b039536485970829918aa237a08417bd0ed5437c` (git)
  - affected: `4.19.51 to before 4.20` (semver)
  - affected: `5.1.10 to before 5.2` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.2`
  - unaffected: `before 5.2` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel's f2fs filesystem is affected from version 5.2 until fixed. The source gives few details on what an attacker needs, only that a corrupted node block may be written to storage. Upgrade to 6.1.191, 6.6.160, 6.12.112, 6.18.51, or a later release in those series.

Written 12 Nov 2026.

## 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:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89832](https://www.cve.org/CVERecord?id=CVE-2026-89832)
- [NVD: CVE-2026-89832](https://nvd.nist.gov/vuln/detail/CVE-2026-89832)

### References from the CNA

- <https://git.kernel.org/stable/c/9e0d9a317ce2cae3768626599d857bb3f0fd96fc>
- <https://git.kernel.org/stable/c/21b7f66716b4fd0dffac4fcd06602b888f3c4531>
- <https://git.kernel.org/stable/c/34732e3a8713f3b7acd1a0ea37e3a6bee4c78550>
- <https://git.kernel.org/stable/c/ab35ae07f2b5b4e118ea47b88577fc7d0e797b17>
- <https://git.kernel.org/stable/c/3923ec2b98c96dda4a8bfab81d22553dbf0dd6c2>
- <https://git.kernel.org/stable/c/5b86eab84ac8e9289b5afc52ef88ab18ba5bacab>

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-2026-89832>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89832/>. Everything for agents: <https://agentprime.io/llms.txt>.