# bpf: fs/xattr: don't assume the inode is locked in path_unlink/path_rmdir

CVE record · `CVE-2026-98543`

- **Identifiers:** `CVE-2026-98543`
- **State:** Confirmed
- **Severity:** CVSS 7.3 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 24 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:18 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: `56467292794b800164df20c076c409ac548e56ec to before 7504b677c4370c9e4b153c553ff8831c093b1ff6` (git)
  - affected: `56467292794b800164df20c076c409ac548e56ec to before 640d37fbd34d03af727dbc567f48c0203d1de6b4` (git)
  - affected: `56467292794b800164df20c076c409ac548e56ec to before 35d442ed1f86465e49df3119fb898f985186db13` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.15`
  - unaffected: `before 6.15` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0015, the 4th percentile, on 8 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98543](https://www.cve.org/CVERecord?id=CVE-2026-98543)
- [NVD: CVE-2026-98543](https://nvd.nist.gov/vuln/detail/CVE-2026-98543)

### References from the CNA

- <https://git.kernel.org/stable/c/7504b677c4370c9e4b153c553ff8831c093b1ff6>
- <https://git.kernel.org/stable/c/640d37fbd34d03af727dbc567f48c0203d1de6b4>
- <https://git.kernel.org/stable/c/35d442ed1f86465e49df3119fb898f985186db13>

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-2026-98543>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98543/>. Everything for agents: <https://agentprime.io/llms.txt>.