CVE-2021-47142

Summary

CVE-2021-47142 is a vulnerability affecting the Linux kernel's amdgpu driver. The issue stems from a failure to set a pointer to NULL, leading to a use-after-free condition. This can result in a general protection fault and system panic. The error occurs during the destruction of a TTM buffer object, specifically in the function 'ttm_tt_destroy'. This vulnerability was discovered during the destruction of a TTM buffer object in the 'ttm_bo_cleanup_memtype_use' function. Exploitation of this vulnerability could potentially lead to memory corruption and system instability. The affected driver has been updated to resolve this issue.

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