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CVE-2025-40117

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CVE-2025-40117

Published: Nov 12, 2025

Modified: May 11, 2026

PUBLISHED

Description

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().

VendorProductVersions

Linux

Linux

affected
eefb83790a0dda112d1755e4f5e213738d717e76 - < 6df3687922570f753574c40b35e83b26b32292d0
affected
eefb83790a0dda112d1755e4f5e213738d717e76 - < 1ad82f9db13d85667366044acdfb02009d576c5a

Linux

Linux

affected
6.17
unaffected
0 - < 6.17
unaffected
6.17.3 - <= 6.17.*
unaffected
6.18 - <= *

References

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