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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.

PUBLISHED Reserved 2025-10-22 | Published 2025-10-22 | Updated 2025-10-22 | Assigner Linux

Product status

Default status
unaffected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before 90ff030ca10b69feeebda1427550ebf9ed2ad868
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before 56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2a
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before dfd15c5550b9190d5b0f9bcacb3e6436322f3854
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before d165388227aa7e46a9751b90bae6337b5335cdbb
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before 07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before 6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before 4f5d28865c665c9064de631a518f9bc8099d9ce4
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before 516614a371c26e3334625b4bca19a5362bf658d6
affected

3c6a483275f47a2ef7119309ad3d791c10cf30da (git) before 8be3a7bf773700534a6e8f87f6ed2ed111254be5
affected

Default status
affected

2.6.38
affected

Any version before 2.6.38
unaffected

4.9.337 (semver)
unaffected

4.14.303 (semver)
unaffected

4.19.270 (semver)
unaffected

5.4.229 (semver)
unaffected

5.10.163 (semver)
unaffected

5.15.86 (semver)
unaffected

6.0.16 (semver)
unaffected

6.1.2 (semver)
unaffected

6.2 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/90ff030ca10b69feeebda1427550ebf9ed2ad868

git.kernel.org/...c/56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2a

git.kernel.org/...c/dfd15c5550b9190d5b0f9bcacb3e6436322f3854

git.kernel.org/...c/d165388227aa7e46a9751b90bae6337b5335cdbb

git.kernel.org/...c/07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5

git.kernel.org/...c/6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02

git.kernel.org/...c/4f5d28865c665c9064de631a518f9bc8099d9ce4

git.kernel.org/...c/516614a371c26e3334625b4bca19a5362bf658d6

git.kernel.org/...c/8be3a7bf773700534a6e8f87f6ed2ed111254be5

cve.org (CVE-2022-50576)

nvd.nist.gov (CVE-2022-50576)

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