Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f942a7de047d8c599cc1a9a26293c8c7400450ea before 4749c5cc147c9860b96db1e71cc36d1de1bd3f59; affected f942a7de047d8c599cc1a9a26293c8c7400450ea before 71d591ef873f9ebb86cd8d053b3caee785b2de6a; affected f942a7de047d8c599cc1a9a26293c8c7400450ea before b2bc053ebbba57a06fa655db5ea796de2edce445; affected f942a7de047d8c599cc1a9a26293c8c7400450ea before 48bd5d3801f6b67cc144449d434abbd5043a6d37; affected f942a7de047d8c599cc1a9a26293c8c7400450ea before 5ee6413d3dd972930af787b2c0c7aaeb379fa521; affected f942a7de047d8c599cc1a9a26293c8c7400450ea before 4271515f189bd5fe2ec86b4089dab7cb804625d2; affected f942a7de047d8c599cc1a9a26293c8c7400450ea before e364ce04d8f840478b09eee57b614de7cf1e743e; affected f942a7de047d8c599cc1a9a26293c8c7400450ea before 45fecdb9f658d9c82960c98240bc0770ade19aca |
| Linux / Linux | affected 3.6; unaffected 0 before 3.6; unaffected 4.9.336 through 4.9.*; unaffected 4.14.302 through 4.14.*; unaffected 4.19.269 through 4.19.*; unaffected 5.4.227 through 5.4.*; unaffected 5.10.159 through 5.10.*; unaffected 5.15.83 through 5.15.*; unaffected 6.0.13 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4749c5cc147c9860b96db1e71cc36d1de1bd3f59
- https://git.kernel.org/stable/c/71d591ef873f9ebb86cd8d053b3caee785b2de6a
- https://git.kernel.org/stable/c/b2bc053ebbba57a06fa655db5ea796de2edce445
- https://git.kernel.org/stable/c/48bd5d3801f6b67cc144449d434abbd5043a6d37
- https://git.kernel.org/stable/c/5ee6413d3dd972930af787b2c0c7aaeb379fa521
- https://git.kernel.org/stable/c/4271515f189bd5fe2ec86b4089dab7cb804625d2
- https://git.kernel.org/stable/c/e364ce04d8f840478b09eee57b614de7cf1e743e
- https://git.kernel.org/stable/c/45fecdb9f658d9c82960c98240bc0770ade19aca
ADP enrichment
No English description supplied.
No references supplied.