# bpf: Reject rdonly/rdwr_buf_size kfunc arguments that exceed u32 max

CVE record · `CVE-2026-93125`

- **Identifiers:** `CVE-2026-93125`
- **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:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:11 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: `eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to before 00bb52be60da16cd5ead4eb9f8ddc9a66d003ff2` (git)
  - affected: `eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to before 2147065d3a4e1d5d42ae553fef165f17ec5e0e79` (git)
  - affected: `eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to before b6ac0b5732047d43172b9dfbe6b57b9b8de303c2` (git)
  - affected: `eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to before 93a20b14f8627b2d3486e3ec1d3f2e7275a506ec` (git)
  - affected: `eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to before 56a3846830ac95a472297d0cbba75cbff29540bb` (git)
  - affected: `eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to before 2aaf67f0516fde29620d0edfc29c01b9ea7ad430` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.1`
  - unaffected: `before 6.1` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 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:** 0.0013, the 2nd 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93125](https://www.cve.org/CVERecord?id=CVE-2026-93125)
- [NVD: CVE-2026-93125](https://nvd.nist.gov/vuln/detail/CVE-2026-93125)

### References from the CNA

- <https://git.kernel.org/stable/c/00bb52be60da16cd5ead4eb9f8ddc9a66d003ff2>
- <https://git.kernel.org/stable/c/2147065d3a4e1d5d42ae553fef165f17ec5e0e79>
- <https://git.kernel.org/stable/c/b6ac0b5732047d43172b9dfbe6b57b9b8de303c2>
- <https://git.kernel.org/stable/c/93a20b14f8627b2d3486e3ec1d3f2e7275a506ec>
- <https://git.kernel.org/stable/c/56a3846830ac95a472297d0cbba75cbff29540bb>
- <https://git.kernel.org/stable/c/2aaf67f0516fde29620d0edfc29c01b9ea7ad430>

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-2026-93125>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93125/>. Everything for agents: <https://agentprime.io/llms.txt>.