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CVE-2026-64008: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: accel/rocket: fix UAF via dangling GEM handle in create_bo rocket_ioctl_create_bo() inserts a GEM handle into the file's IDR via drm_gem_handle_create() early on, then performs several operations that can fail (sgt allocation, drm_mm insert, iommu_map). If any fail after the handle is live, the error path calls drm_gem_shmem_object_free() which kfree's the object without removing the handle from the IDR. This leaves a dangling handle pointing to freed slab memory. Any subsequent ioctl using that handle (PREP_BO, FINI_BO, SUBMIT) calls drm_gem_object_lookup() and dereferences freed memory (UAF). Fix by moving drm_gem_handle_create() to after all fallible operations succeed, matching the pattern used by panfrost, lima, and etnaviv. Also fix drm_mm_insert_node_generic() whose return value was silently overwritten by iommu_map_sgtable() on the next line. Add the missing error check. [tomeu: Move handle creation to the very end]

    Засегнати продукти

    • Linux Linux: 658ebeac33517bd3169d4b65ed801e9065d0211a преди 18abd88d19ea195e2e1547fca0970c2f91d77a42; 658ebeac33517bd3169d4b65ed801e9065d0211a преди 451f1ccbbdb7b65021646704b15902655f8d228a; 658ebeac33517bd3169d4b65ed801e9065d0211a преди f706e6a4ce75585af979aec3dcbdce68bc76306b
    • Linux Linux: 6.18; преди 6.18; 6.18.35 до 6.18.*; 7.0.12 до 7.0.*; 7.1 до *

    История

    • 19 юли 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-64008: Linux | freedomonline.bg