#VU98882 Use-after-free in Linux kernel - CVE-2024-49991

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the pqm_clean_queue_resource() function in drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c, within the kfd_process_destroy_pdds() function in drivers/gpu/drm/amd/amdkfd/kfd_process.c, within the kfd_free_mqd_cp() function in drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c, within the deallocate_hiq_sdma_mqd() function in drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c, within the kfd_gtt_sa_fini() and kgd2kfd_device_exit() functions in drivers/gpu/drm/amd/amdkfd/kfd_device.c, within the kfd_ioctl_create_queue() function in drivers/gpu/drm/amd/amdkfd/kfd_chardev.c, within the amdgpu_amdkfd_free_gtt_mem() function in drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c. A local user can escalate privileges on the system.

Remediation

External links

• https://git.kernel.org/stable/c/30ceb873cc2e97348d9da2265b2d1ddf07f682e1
• https://git.kernel.org/stable/c/71f3240f82987f0f070ea5bed559033de7d4c0e1
• https://git.kernel.org/stable/c/6c9289806591807e4e3be9a23df8ee2069180055
• https://git.kernel.org/stable/c/c86ad39140bbcb9dc75a10046c2221f657e8083b
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.118
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55