# ublk: check import_ubuf() return value

CVE record · `CVE-2026-90324`

- **Identifiers:** `CVE-2026-90324`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 21 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:08 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: `981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 7f97c762b5f6e0005c5c7d040ded73bf7fb3587e` (git)
  - affected: `981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 27ff6e8703f7a7160c728501da2f8ef8e7bb6b2f` (git)
  - affected: `981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 0121c84adb6a4cd6f7560b5895bd88f9899bbc1f` (git)
  - affected: `981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 5ac6019cb78e98c9608fda72726b36ddf8474dd7` (git)
  - affected: `981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 3831568792af75b6523fa93bb91560e29189cf55` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.5`
  - unaffected: `before 6.5` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 13 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90324](https://www.cve.org/CVERecord?id=CVE-2026-90324)
- [NVD: CVE-2026-90324](https://nvd.nist.gov/vuln/detail/CVE-2026-90324)

### References from the CNA

- <https://git.kernel.org/stable/c/7f97c762b5f6e0005c5c7d040ded73bf7fb3587e>
- <https://git.kernel.org/stable/c/27ff6e8703f7a7160c728501da2f8ef8e7bb6b2f>
- <https://git.kernel.org/stable/c/0121c84adb6a4cd6f7560b5895bd88f9899bbc1f>
- <https://git.kernel.org/stable/c/5ac6019cb78e98c9608fda72726b36ddf8474dd7>
- <https://git.kernel.org/stable/c/3831568792af75b6523fa93bb91560e29189cf55>

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-2026-90324>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90324/>. Everything for agents: <https://agentprime.io/llms.txt>.