{"id":"CVE-2026-45853","title":"drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()\n\namdgpu_discovery_get_nps_info() internally allocates memory for ranges\nusing kvcalloc(), whic…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < 16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e","Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < 9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5","Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < f441538893eba6347b983f2904819ca6c99da65e","Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < 0c44d61945c4a80775292d96460aa2f22e62f86c","Linux 6.11"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T15:42:39.256391Z"},"published":"2026-05-27","updated":"2026-11-06","sourceUpdated":"2026-11-06T15:43:00.207Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-45853","references":[{"url":"https://git.kernel.org/stable/c/16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e"},{"url":"https://git.kernel.org/stable/c/9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5"},{"url":"https://git.kernel.org/stable/c/f441538893eba6347b983f2904819ca6c99da65e"},{"url":"https://git.kernel.org/stable/c/0c44d61945c4a80775292d96460aa2f22e62f86c"}],"tags":["cve.org"],"epss":0.00164,"epssPercentile":0.05647,"ingestedAt":"2026-11-06T15:54:03.875Z","slug":"CVE-2026-45853","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()\n\namdgpu_discovery_get_nps_info() internally allocates memory for ranges\nusing kvcalloc(), which may use vmalloc() for large allocation. Using\nkfree() to release vmalloc memory will lead to a memory corruption.\n\nUse kvfree() to safely handle both kmalloc and vmalloc allocations.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.\n\n## Affected\n\n- `Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < 16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e`\n- `Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < 9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5`\n- `Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < f441538893eba6347b983f2904819ca6c99da65e`\n- `Linux >= b194d21b9bcc15b50df1bc3ff7428e51c2918a6f < 0c44d61945c4a80775292d96460aa2f22e62f86c`\n- `Linux 6.11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}