CVE-2025-71122

Summary

In the Linux kernel, the following vulnerability has been resolved:

iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED

syzkaller found it could overflow math in the test infrastructure and cause a WARN_ON by corrupting the reserved interval tree. This only effects test kernels with CONFIG_IOMMUFD_TEST.

Validate the user input length in the test ioctl.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf4b20bb34c83dceade5470288f48f94ce3598ada < 4cc829d61f10c20523fd4085c1546e741a792a97affected
LinuxLinuxf4b20bb34c83dceade5470288f48f94ce3598ada < e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925affected
LinuxLinuxf4b20bb34c83dceade5470288f48f94ce3598ada < b166b8e0a381429fefd9180e67fbc834b3cee82faffected
LinuxLinuxf4b20bb34c83dceade5470288f48f94ce3598ada < e6a973af11135439de32ece3b9cbe3bfc043bea8affected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.6.120 <= 6.6.*unaffected
LinuxLinux6.12.64 <= 6.12.*unaffected
LinuxLinux6.18.3 <= 6.18.*unaffected
LinuxLinux6.19 <= *unaffected

Weaknesses

References