CVE-2026-68257
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
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 Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/18/2026 3:16:51 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"b88ffe6593607364a8c06a48c6f29e55437cdf8e","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"abce3276c57e36c955627307469b9f009057a467","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"865532d54eb57b660b1cb1b0e1755776ce21b849","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"2b0386d4293920e690c0e017708f999b93cc729b","versionType":"git","status":"affected"},{"version":"0","lessThan":"6.12.101","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.18.42","versionType":"semver","status":"affected"},{"version":"0","lessThan":"7.1.6","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"325aa07165394b8e866ffe9ec1d4c99d9195b2f2","lessThan":"b88ffe6593607364a8c06a48c6f29e55437cdf8e","versionType":"git","status":"affected"},{"version":"d15deafab5d722afb9e2f83c5edcdef9d9d98bd1","lessThan":"abce3276c57e36c955627307469b9f009057a467","versionType":"git","status":"affected"},{"version":"d15deafab5d722afb9e2f83c5edcdef9d9d98bd1","lessThan":"865532d54eb57b660b1cb1b0e1755776ce21b849","versionType":"git","status":"affected"},{"version":"d15deafab5d722afb9e2f83c5edcdef9d9d98bd1","lessThan":"2b0386d4293920e690c0e017708f999b93cc729b","versionType":"git","status":"affected"},{"version":"63600103d2ac5c09fdeec5b931b396e4e0efd5d8","versionType":"git","status":"affected"},{"version":"6.12.59","lessThan":"6.12.101","versionType":"semver","status":"affected"},{"version":"6.17.9","lessThan":"6.18","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/17/2026 1:18:28 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"b88ffe6593607364a8c06a48c6f29e55437cdf8e","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"abce3276c57e36c955627307469b9f009057a467","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"865532d54eb57b660b1cb1b0e1755776ce21b849","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"2b0386d4293920e690c0e017708f999b93cc729b","versionType":"git","status":"affected"},{"version":"0","lessThan":"6.12.101","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.18.42","versionType":"semver","status":"affected"},{"version":"0","lessThan":"7.1.6","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc4","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"b88ffe6593607364a8c06a48c6f29e55437cdf8e","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"abce3276c57e36c955627307469b9f009057a467","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"865532d54eb57b660b1cb1b0e1755776ce21b849","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"2b0386d4293920e690c0e017708f999b93cc729b","versionType":"git","status":"affected"},{"version":"0","lessThan":"6.12.101","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.18.42","versionType":"semver","status":"affected"},{"version":"0","lessThan":"7.1.6","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/13/2026 7:17:26 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
New CVE Received from kernel.org
8/10/2026 9:20:14 AM
Action
Type
Old Value
New Value
Added
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)
Added
Reference
https://git.kernel.org/stable/c/2b0386d4293920e690c0e017708f999b93cc729b
Added
Reference
https://git.kernel.org/stable/c/865532d54eb57b660b1cb1b0e1755776ce21b849
Added
Reference
https://git.kernel.org/stable/c/abce3276c57e36c955627307469b9f009057a467
Added
Reference
https://git.kernel.org/stable/c/b88ffe6593607364a8c06a48c6f29e55437cdf8e
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"b88ffe6593607364a8c06a48c6f29e55437cdf8e","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"abce3276c57e36c955627307469b9f009057a467","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"865532d54eb57b660b1cb1b0e1755776ce21b849","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"2b0386d4293920e690c0e017708f999b93cc729b","versionType":"git","status":"affected"},{"version":"0","lessThan":"6.12.101","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.18.42","versionType":"semver","status":"affected"},{"version":"0","lessThan":"7.1.6","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc4","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68257 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/18/2026
Source: kernel.org
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