CVE-2025-21724
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2025-02-27
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
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.
Weakness Classification (1)
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < 44d9c94b7a3f29a3e07c4753603a35e9b28842a3 |
| Linux | Linux | 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < 38ac76fc06bc6826a3e4b12a98efbe98432380a9 |
| Linux | Linux | 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < d5d33f01b86af44b23eea61ee309e4ef22c0cdfe |
| Linux | Linux | 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < b1f8453b8ff1ab79a03820ef608256c499769cb6 |
| Linux | Linux | 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < e24c1551059268b37f6f40639883eafb281b8b9c |
| Linux | Linux | 6.1 |
| linux | linux_kernel | 6.1 – 6.1.129 |