cvedb.io
CVE-2025-40117
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2025-11-12T11:15:41.003 · Last modified 2026-07-30T06:24:12.380

Summary

In the Linux kernel, the following vulnerability has been resolved: misc: pci_endpoint_test: Fix array underflow in pci_endpoint_test_ioctl() Commit eefb83790a0d ("misc: pci_endpoint_test: Add doorbell test case") added NO_BAR (-1) to the pci_barno enum which, in practical terms, changes the enum from an unsigned int to a signed int. If the user passes a negative number in pci_endpoint_test_ioctl() then it results in an array underflow in pci_endpoint_test_bar().

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References

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