Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before f1c97f72ffd504f49882774e2ab689d982dc7afc; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before 526c316948819d3ecd2bb20fe5e2580c51a1b760; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before e246f5eff26055bdcb61a2cc99c50af72a19680f; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before 1199f8e02941b326c60ab71a63002b7c80e38212; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before 5998e5c30e839f73e62cb29e0d9617b0d16ccba3; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before 2b79a5e560779b35e1164d57ae35c48b43373082; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before cb348c7908631dd9f60083a0a1542eab055d3edf; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d; affected 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 before ecadb5b0111ea19fc7c240bb25d424a94471eb7d |
| Linux / Linux | affected 2.6.18; unaffected 0 before 2.6.18; unaffected 4.9.337 through 4.9.*; unaffected 4.14.303 through 4.14.*; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc
- https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760
- https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f
- https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212
- https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3
- https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082
- https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf
- https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d
- https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d