Fixed
Created: Feb 27, 2025
Updated: Apr 7, 2025
Resolved Date: Mar 24, 2025
Found In Version: 10.23.30.1
Fix Version: 10.23.30.16
Severity: Standard
Applicable for: Wind River Linux LTS 23
Component/s: Kernel
In the Linux kernel, the following vulnerability has been resolved:
iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index()
Resolve a UBSAN shift-out-of-bounds issue in iova_bitmap_offset_to_index()
where shifting the constant "1" (of type int) by bitmap->mapped.pgshift
(an unsigned long value) could result in undefined behavior.
The constant "1" defaults to a 32-bit "int", and when "pgshift" exceeds
31 (e.g., pgshift = 63) the shift operation overflows, as the result
cannot be represented in a 32-bit type.
To resolve this, the constant is updated to "1UL", promoting it to an
unsigned long type to match the operand's type.
CREATE(Triage):(User=admin) CVE-2025-21724 (https://nvd.nist.gov/vuln/detail/CVE-2025-21724)
