# IB/isert: post the full-feature receive buffers after session registration

CVE record · `CVE-2026-90293`

- **Identifiers:** `CVE-2026-90293`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 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: `b8d26b3be8b33682cf163274ed07479a70554633 to before 962edb9a6b0dae09d33a677485a398fc7d55968c` (git)
  - affected: `b8d26b3be8b33682cf163274ed07479a70554633 to before 068fe9841d2585b79d479fc7b58251d02d0b066f` (git)
  - affected: `b8d26b3be8b33682cf163274ed07479a70554633 to before d4f8257c3283919ca7e149381d062b9af5f7df7d` (git)
  - affected: `b8d26b3be8b33682cf163274ed07479a70554633 to before 9c21a433022219ca899d1b3cd9049991f51a6a2c` (git)
  - affected: `b8d26b3be8b33682cf163274ed07479a70554633 to before 9b2c61344992c8c2b883e1eebe416cc488a19390` (git)
  - affected: `b8d26b3be8b33682cf163274ed07479a70554633 to before 6c506fee5a5f2c8719c65bcfc5e5d0862b0a1946` (git)
  - affected: `b8d26b3be8b33682cf163274ed07479a70554633 to before ad4492dcaf90a1d1a728ec5eef1a68ce5355027a` (git)
  - affected: `b8d26b3be8b33682cf163274ed07479a70554633 to before 5247dde9daac7e107853b6fea043f7f47be033f7` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.10`
  - unaffected: `before 3.10` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0070, the 53rd 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-2026-90293](https://www.cve.org/CVERecord?id=CVE-2026-90293)
- [NVD: CVE-2026-90293](https://nvd.nist.gov/vuln/detail/CVE-2026-90293)

### References from the CNA

- <https://git.kernel.org/stable/c/962edb9a6b0dae09d33a677485a398fc7d55968c>
- <https://git.kernel.org/stable/c/068fe9841d2585b79d479fc7b58251d02d0b066f>
- <https://git.kernel.org/stable/c/d4f8257c3283919ca7e149381d062b9af5f7df7d>
- <https://git.kernel.org/stable/c/9c21a433022219ca899d1b3cd9049991f51a6a2c>
- <https://git.kernel.org/stable/c/9b2c61344992c8c2b883e1eebe416cc488a19390>
- <https://git.kernel.org/stable/c/6c506fee5a5f2c8719c65bcfc5e5d0862b0a1946>
- <https://git.kernel.org/stable/c/ad4492dcaf90a1d1a728ec5eef1a68ce5355027a>
- <https://git.kernel.org/stable/c/5247dde9daac7e107853b6fea043f7f47be033f7>

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-2026-90293>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90293/>. Everything for agents: <https://agentprime.io/llms.txt>.