Description
In the Linux kernel, the following vulnerability has been resolved: serial: pch: Fix PCI device refcount leak in pch_request_dma() As comment of pci_get_slot() says, it returns a pci_device with its refcount increased. The caller must decrement the reference count by calling pci_dev_put(). Since 'dma_dev' is only used to filter the channel in filter(), we can call pci_dev_put() before exiting from pch_request_dma(). Add the missing pci_dev_put() for the normal and error path.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
3c6a483275f47a2ef7119309ad3d791c10cf30da to < 90ff030ca10b69feeebda1427550ebf9ed2ad868affected3c6a483275f47a2ef7119309ad3d791c10cf30da to < 56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2aaffected3c6a483275f47a2ef7119309ad3d791c10cf30da to < dfd15c5550b9190d5b0f9bcacb3e6436322f3854affected3c6a483275f47a2ef7119309ad3d791c10cf30da to < d165388227aa7e46a9751b90bae6337b5335cdbbaffected3c6a483275f47a2ef7119309ad3d791c10cf30da to < 07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5affected3c6a483275f47a2ef7119309ad3d791c10cf30da to < 6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02affected3c6a483275f47a2ef7119309ad3d791c10cf30da to < 4f5d28865c665c9064de631a518f9bc8099d9ce4affected3c6a483275f47a2ef7119309ad3d791c10cf30da to < 516614a371c26e3334625b4bca19a5362bf658d6affected3c6a483275f47a2ef7119309ad3d791c10cf30da to < 8be3a7bf773700534a6e8f87f6ed2ed111254be5affected
Linux Linux
Default version status: affected
2.6.38affected0 to < 2.6.38unaffected4.9.337 to ≤ 4.9.*unaffected4.14.303 to ≤ 4.14.*unaffected4.19.270 to ≤ 4.19.*unaffected5.4.229 to ≤ 5.4.*unaffected5.10.163 to ≤ 5.10.*unaffected5.15.86 to ≤ 5.15.*unaffected6.0.16 to ≤ 6.0.*unaffected6.1.2 to ≤ 6.1.*unaffected6.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/90ff030ca10b69feeebda1427550ebf9ed2ad868 ↗
- https://git.kernel.org/stable/c/56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2a ↗
- https://git.kernel.org/stable/c/dfd15c5550b9190d5b0f9bcacb3e6436322f3854 ↗
- https://git.kernel.org/stable/c/d165388227aa7e46a9751b90bae6337b5335cdbb ↗
- https://git.kernel.org/stable/c/07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5 ↗
- https://git.kernel.org/stable/c/6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02 ↗
- https://git.kernel.org/stable/c/4f5d28865c665c9064de631a518f9bc8099d9ce4 ↗
- https://git.kernel.org/stable/c/516614a371c26e3334625b4bca19a5362bf658d6 ↗
- https://git.kernel.org/stable/c/8be3a7bf773700534a6e8f87f6ed2ed111254be5 ↗