VDB
DEBIAN-CVE-2025-40293
DEBIAN-CVE-2025-40293
PUBLISHED
In the Linux kernel, the following vulnerability has been resolved: iommufd: Don't overflow during division for dirty tracking If pgshift is 63 then BITS_PER_TYPE(*bitmap->bitmap) * pgsize will overflow to 0 and this triggers divide by 0. In this case the index should just be 0, so reorganize things to divide by shift and avoid hitting any overflows.
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0, 6.12.63-1, 6.12.57-1 |
| Debian:12 | linux | 6.1.55-1, 0, 6.1.106-1 |
| Debian:14 | linux | 6.16.7-1, 6.16.9-1, 6.16 |
| Debian:11 | linux-6.1 | 0, 6.1.106-3~deb11u2, 6.1.112-1~deb11u1 |
Exploit Intelligence
- 4081.3.7.yml (github-poc)
Timeline
- Dec 8, 2025 CVE Published
- Apr 28, 2026 CVE Updated