# CVE-2026-93277: linux: In the Linux kernel, the following vulnerability has been resolved:  RDMA/bnxt_re: Validate udata before executing co...

CVE-2026-93277 is fixed in linux on 1 platform by DEBIAN-CVE-2026-93277 (version 7.2.6-1), released September 24, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-93277
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0014
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 24, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  RDMA/bnxt_re: Validate udata before executing commands  The destroy callbacks currently zero the udata output after tearing down driver resources. If the userspace access fails, uverbs preserves the uobject and allows the destroy callback to run again, even though the driver resource has already been freed.  Call ib_no_udata_io() before teardown so udata failures are detected while the resource is still intact, then return success after teardown completes.  As part of this change, move ib_respond_empty_udata() to the start of the create and modify flows. While this is not strictly required for general create flows, as the core layer unwinds uobjects on failure, it is necessary for create AH. In _rdma_create_ah(), the HW object is otherwise leaked.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-93277](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93277.md) | Sep 24, 2026 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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