{"id":"CVE-2026-68105","summary":"drm/amdgpu: Fix kernel panic during driver load failure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix kernel panic during driver load failure\n\nAvoid kernel panic if MES init fails during driver load. The KIQ ring is\nfalsely marked as ready as ASICs that use MES, KIQ is owned by MES.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nRIP: 0010:gfx_v12_1_wait_reg_mem+0x5a/0x1f0 [amdgpu]\nCall Trace:\n gfx_v12_1_ring_emit_reg_write_reg_wait+0x1f/0x30 [amdgpu]\n amdgpu_gmc_fw_reg_write_reg_wait+0xb2/0x190 [amdgpu]\n amdgpu_gmc_flush_gpu_tlb+0x1cc/0x230 [amdgpu]\n amdgpu_gart_invalidate_tlb+0x81/0xa0 [amdgpu]\n amdgpu_gart_unbind+0x72/0x90 [amdgpu]\n amdgpu_ttm_backend_unbind+0xa4/0xb0 [amdgpu]\n amdgpu_ttm_tt_unpopulate+0x13/0xd0 [amdgpu]\n amdttm_tt_unpopulate+0x29/0x70 [amdttm]\n ttm_bo_put+0x1eb/0x360 [amdttm]\n amdgpu_bo_free_kernel+0xf9/0x1f0 [amdgpu]\n amdgpu_ih_ring_fini+0x5a/0x90 [amdgpu]\n amdgpu_irq_fini_hw+0x58/0x80 [amdgpu]\n amdgpu_device_fini_hw+0x4e0/0x5b0 [amdgpu]\n amdgpu_driver_load_kms+0x60/0xa0 [amdgpu]\n amdgpu_pci_probe+0x28e/0x6d0 [amdgpu]\n pci_device_probe+0x19f/0x220\n really_probe+0x1ed/0x340\n driver_probe_device+0x1e/0x80\n __driver_attach+0xd3/0x1a0\n bus_for_each_dev+0x68/0xa0\n bus_add_driver+0x19f/0x270\n driver_register+0x5d/0xf0\n do_one_initcall+0xac/0x200\n do_init_module+0x1ec/0x280\n __se_sys_finit_module+0x2de/0x310\n do_syscall_64+0x6a/0x250\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\n(cherry picked from commit 4623b958dd6da0f4c3026afdf330626a09ecb0f0)","modified":"2026-08-13T04:02:56.385904332Z","published":"2026-08-10T11:58:22.101Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68105.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/5bc93f907bad7e076d814664dfab8fc230efca3d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a279bd143b3c184358b658e43a057e31ee8c4de5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68105.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68105"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"52cb80c12e8a647aa9c903903d58916e6c1c4d38"},{"fixed":"5bc93f907bad7e076d814664dfab8fc230efca3d"},{"fixed":"a279bd143b3c184358b658e43a057e31ee8c4de5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68105.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.11.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68105.json"}}],"schema_version":"1.9.0"}