Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: fix 32-bit overflow in CWSR total size calculation
total_cwsr_size was computed in 32-bit before being used as a BO/SVM allocation size. With large ctx_save_restore_area_size and debug_memory_size multiplied by the XCC count, the product can wrap, yielding an undersized CWSR save area that firmware later overruns.
Promote total_cwsr_size to u64 and use check_add_overflow()/ check_mul_overflow() in both kfd_queue_acquire_buffers() and kfd_queue_release_buffers().
(cherry picked from commit 319f7e13423ae3f486b9aea82f9ad2d6af0ee608)
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 325aa07165394b8e866ffe9ec1d4c99d9195b2f2, < b88ffe6593607364a8c06a48c6f29e55437cdf8e; >= d15deafab5d722afb9e2f83c5edcdef9d9d98bd1, < abce3276c57e36c955627307469b9f009057a467; >= d15deafab5d722afb9e2f83c5edcdef9d9d98bd1, < 865532d54eb57b660b1cb1b0e1755776ce21b849; >= d15deafab5d722afb9e2f83c5edcdef9d9d98bd1, < 2b0386d4293920e690c0e017708f999b93cc729b; 63600103d2ac5c09fdeec5b931b396e4e0efd5d8; >= 6.12.59, < 6.12.101; >= 6.17.9, < 6.18 |
| Linux | Linux | 6.18 |
References
Timeline
- Published
- Aug 10, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received