CVE-2022-49787: linux kernel — Fix

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.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.4 — 4.14.300
linux	linux_kernel	4.15 — 4.19.267
linux	linux_kernel	4.20 — 5.4.225
linux	linux_kernel	5.5 — 5.10.156
linux	linux_kernel	5.11 — 5.15.80
linux	linux_kernel	5.16 — 6.0.10
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2022-49787? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49787? +

CVE-2022-49787 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-49787? +

CVE-2022-49787 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-49787? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2022-49787