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CVE-2022-50868

UnknownEPSS 0.20%

Last modified

CVE-2022-50868 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: hwrng: amd - Fix PCI device refcount leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: hwrng: amd - Fix PCI device refcount leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the normal and error path.

Metrics

EPSS Probability
0.20%

10.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < f1c97f72ffd504f49882774e2ab689d982dc7afc; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < 526c316948819d3ecd2bb20fe5e2580c51a1b760; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < e246f5eff26055bdcb61a2cc99c50af72a19680f; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < 1199f8e02941b326c60ab71a63002b7c80e38212; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < 5998e5c30e839f73e62cb29e0d9617b0d16ccba3; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < 2b79a5e560779b35e1164d57ae35c48b43373082; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < cb348c7908631dd9f60083a0a1542eab055d3edf; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d; >= 96d63c0297ccfd6d9059c614b3f5555d9441a2b3, < ecadb5b0111ea19fc7c240bb25d424a94471eb7d
LinuxLinux2.6.18

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2022-50868?
In the Linux kernel, the following vulnerability has been resolved: hwrng: amd - Fix PCI device refcount leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the normal and error path.
How severe is CVE-2022-50868?
Severity scoring for CVE-2022-50868 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2022-50868?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST