CVE-2026-98178: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Skip KFD mapping clear before initialization amdgpu_amdkfd_clear_kfd_mapping() assumes that a non-NULL kfd_dev has a fully populated node array. This is not true when KFD device initialization fails after probe. For example, kgd2kfd_device_init() sets num_nodes before checking PCIe atomics support. On Polaris systems without the required atomics, it returns before allocating nodes[0], but the kfd_dev remains attached to the amdgpu device. A later GPU reset then dereferences nodes[0]->id. Require the authoritative KFD initialization flag before walking the node array, matching the existing KFD reset and teardown paths. (cherry picked from commit 4ac1835823c47903fbb278bbf474773c46f59edc)

Засегнати продукти

• Linux Linux: 70cadefcc6160c575b04f763ada34c20e868d577 преди 157d3f1db7e7e6f320daa221fae84a4c13555b6f; 70cadefcc6160c575b04f763ada34c20e868d577 преди 7f9caa70aef0950e06d395ca0035831214d88187
• Linux Linux: 7.2; преди 7.2; 7.2.8 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98178
• https://nvd.nist.gov/vuln/detail/CVE-2026-98178
• https://git.kernel.org/stable/c/157d3f1db7e7e6f320daa221fae84a4c13555b6f
• https://git.kernel.org/stable/c/7f9caa70aef0950e06d395ca0035831214d88187