CVE-2026-68257 (GCVE-0-2026-68257)
Vulnerability from cvelistv5
Published
2026-08-10 12:01
Modified
2026-10-19 20:58
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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)
References
Impacted products
Vendor Product Version
Linux Linux Version: 325aa07165394b8e866ffe9ec1d4c99d9195b2f2
Version: d15deafab5d722afb9e2f83c5edcdef9d9d98bd1
Version: d15deafab5d722afb9e2f83c5edcdef9d9d98bd1
Version: d15deafab5d722afb9e2f83c5edcdef9d9d98bd1
Version: 63600103d2ac5c09fdeec5b931b396e4e0efd5d8
Version: 6.12.59   ≤
Version: 6.17.9   ≤
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