# CVE-2026-45995: linux: In the Linux kernel, the following vulnerability has been resolved:  io_uring/zcrx: fix user_struct uaf  io_free_rbuf...

CVE-2026-45995 is fixed in linux on 1 platform by DEBIAN-CVE-2026-45995 (version 7.0.4-1), released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-45995
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 27, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  io_uring/zcrx: fix user_struct uaf  io_free_rbuf_ring() usees a struct user_struct, which io_zcrx_ifq_free() puts it down before destroying the ring.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.0.4-1 | [DEBIAN-CVE-2026-45995](https://patchblox.com/security/data/fix/linux/debian-cve-2026-45995.md) | May 27, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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