CVE-2022-50868
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < f1c97f72ffd504f49882774e2ab689d982dc7afc | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < 526c316948819d3ecd2bb20fe5e2580c51a1b760 | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < e246f5eff26055bdcb61a2cc99c50af72a19680f | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < 1199f8e02941b326c60ab71a63002b7c80e38212 | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < 5998e5c30e839f73e62cb29e0d9617b0d16ccba3 | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < 2b79a5e560779b35e1164d57ae35c48b43373082 | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < cb348c7908631dd9f60083a0a1542eab055d3edf | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d | affected |
| Linux | Linux | 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 < ecadb5b0111ea19fc7c240bb25d424a94471eb7d | affected |
| Linux | Linux | 2.6.18 | affected |
| Linux | Linux | 0 < 2.6.18 | unaffected |
| Linux | Linux | 4.9.337 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.303 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.270 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.229 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.163 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.86 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.16 <= 6.0.* | unaffected |
| Linux | Linux | 6.1.2 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
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
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