Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix pci device refcount leak in ppr_notifier() As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrement the reference count by calling pci_dev_put(). So call it before returning from ppr_notifier() to avoid refcount leak.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected daae2d25a4779b272a66ddd01f5810bcee822b9e before bdb2113dd8f17a3cc84a2b4be4968a849f69ec72; affected daae2d25a4779b272a66ddd01f5810bcee822b9e before efd50c65fd1cdef63eb58825f3fe72496443764c; affected daae2d25a4779b272a66ddd01f5810bcee822b9e before 8581ec1feb895ff596fe3d326d9ba320083290aa; affected daae2d25a4779b272a66ddd01f5810bcee822b9e before 03f51c72997559e73b327608f0cccfded715c9a0; affected daae2d25a4779b272a66ddd01f5810bcee822b9e before 6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5; affected daae2d25a4779b272a66ddd01f5810bcee822b9e before 902cc2507091a81643502d8ceb0e2f105e902518; affected daae2d25a4779b272a66ddd01f5810bcee822b9e before b0637f4bd426925f5c3a15e8f8e36190fe06bac5; affected daae2d25a4779b272a66ddd01f5810bcee822b9e before 6cf0981c2233f97d56938d9d61845383d6eb227c |
| Linux / Linux | affected 4.14; unaffected 0 before 4.14; 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/bdb2113dd8f17a3cc84a2b4be4968a849f69ec72
- https://git.kernel.org/stable/c/efd50c65fd1cdef63eb58825f3fe72496443764c
- https://git.kernel.org/stable/c/8581ec1feb895ff596fe3d326d9ba320083290aa
- https://git.kernel.org/stable/c/03f51c72997559e73b327608f0cccfded715c9a0
- https://git.kernel.org/stable/c/6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5
- https://git.kernel.org/stable/c/902cc2507091a81643502d8ceb0e2f105e902518
- https://git.kernel.org/stable/c/b0637f4bd426925f5c3a15e8f8e36190fe06bac5
- https://git.kernel.org/stable/c/6cf0981c2233f97d56938d9d61845383d6eb227c