serial: pch: Fix PCI device refcount leak in pch_request_dma()
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.
CVE 정보
EPSS
EPSS는 취약점이 악용될 가능성을 예측하는 점수 모델입니다.
EPSS 점수
EPSS 모델은 0과 1(0~100%) 사이의 확률 점수를 생성합니다. 점수가 높을수록 취약점이 악용될 가능성이 높습니다.
날짜
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2025-10-23
–
–
–
–
0.03%
2025-10-28
–
–
–
–
0.04%
2025-11-18
–
–
–
–
0.04%
2025-11-21
–
–
–
–
0.04%
2025-11-23
–
–
–
–
0.05%
2025-12-10
–
–
–
–
0.05%
2025-12-31
–
–
–
–
0.05%
2026-01-04
–
–
–
–
0.05%
2026-01-08
–
–
–
–
0.05%
2026-01-12
–
–
–
–
0.05%
2026-01-14
–
–
–
–
0.05%
2026-01-18
–
–
–
–
0.05%
2026-02-22
–
–
–
–
0.06%
2026-03-22
–
–
–
–
0.04%
2026-04-05
–
–
–
–
0.06%
2026-05-31
–
–
–
–
0.07%
EPSS 백분위수
백분위수는 EPSS 점수에 따라 CVE의 순위를 매기는 데 사용됩니다. 예를 들어 EPSS 점수 기준 95번째 백분위수의 CVE는 다른 CVE의 95%보다 악용될 가능성이 높습니다.