gpio: amd8111: Fix PCI device reference count 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() after the 'out' label. Since pci_dev_put() can handle NULL
input parameter, there is no problem for the 'Device not found' branch.
For the normal path, add pci_dev_put() in amd_gpio_exit().
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Mon, 28 Oct 2024 06:30:00 +0000
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-772 |
Fri, 25 Oct 2024 16:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Linux
Linux linux Kernel |
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| Weaknesses | NVD-CWE-Other | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:* |
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| Vendors & Products |
Linux
Linux linux Kernel |
Tue, 22 Oct 2024 14:15:00 +0000
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| Metrics |
ssvc
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Tue, 22 Oct 2024 13:15:00 +0000
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| Metrics |
threat_severity
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cvssV3_1
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Mon, 21 Oct 2024 20:15:00 +0000
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| Description | In the Linux kernel, the following vulnerability has been resolved: gpio: amd8111: Fix PCI device reference count 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() after the 'out' label. Since pci_dev_put() can handle NULL input parameter, there is no problem for the 'Device not found' branch. For the normal path, add pci_dev_put() in amd_gpio_exit(). | |
| Title | gpio: amd8111: Fix PCI device reference count leak | |
| References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T18:50:44.469Z
Reserved: 2024-08-22T01:27:53.631Z
Link: CVE-2022-48973
Updated: 2024-10-22T13:18:56.660Z
Status : Analyzed
Published: 2024-10-21T20:15:09.430
Modified: 2024-10-25T15:35:54.687
Link: CVE-2022-48973
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