CVE-2023-52816 in Linux
الملخص
بحسب VulDB • 23/05/2026
في نواة لينكس، تم حل الثغرة التالية:
drm/amdkfd: إصلاح مشكلة تجاوز الحدود في عملية الإزاحة (shift out-of-bounds)
[ 567.613292] أسية الإزاحة 255 كبيرة جداً للنوع 'long unsigned int' ذي 64 بت
[ 567.614498] المعالج: 5 المعرف: 238 العملية: kworker/5:1 ملطخة: G OE 6.2.0-34-generic #34~22.04.1-Ubuntu
[ 567.614502] اسم العتاد: AMD Splinter/Splinter-RPL، البرنامج الثابت (BIOS) WS43927N_871 09/25/2023
[ 567.614504] قائمة المهام (Workqueue): events send_exception_work_handler [amdgpu]
[ 567.614748] تتبع المكالمات (Call Trace):
[ 567.614750]
[ 567.614753] dump_stack_lvl+0x48/0x70
[ 567.614761] dump_stack+0x10/0x20
[ 567.614763] __ubsan_handle_shift_out_of_bounds+0x156/0x310
[ 567.614769] ? srso_alias_return_thunk+0x5/0x7f
[ 567.614773] ? update_sd_lb_stats.constprop.0+0xf2/0x3c0
[ 567.614780] svm_range_split_by_granularity.cold+0x2b/0x34 [amdgpu]
[ 567.615047] ? srso_alias_return_thunk+0x5/0x7f
[ 567.615052] svm_migrate_to_ram+0x185/0x4d0 [amdgpu]
[ 567.615286] do_swap_page+0x7b6/0xa30
[ 567.615291] ? srso_alias_return_thunk+0x5/0x7f
[ 567.615294] ? __free_pages+0x119/0x130
[ 567.615299] handle_pte_fault+0x227/0x280
[ 567.615303] __handle_mm_fault+0x3c0/0x720
[ 567.615311] handle_mm_fault+0x119/0x330
[ 567.615314] ? lock_mm_and_find_vma+0x44/0x250
[ 567.615318] do_user_addr_fault+0x1a9/0x640
[ 567.615323] exc_page_fault+0x81/0x1b0
[ 567.615328] asm_exc_page_fault+0x27/0x30
[ 567.615332] RIP: 0010:__get_user_8+0x1c/0x30
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