{"id":"CVE-2021-47431","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix gart.bo pin_count leak\n\ngmc_v{9,10}_0_gart_disable() isn't called matched with\ncorrespoding gart_enbale function in SRIOV case","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix gart.bo pin_count leak\n\ngmc_v{9,10}_0_gart_disable() isn't called matched with\ncorrespoding gart_enbale function in SRIOV case. This will\nlead to gart.b…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.2, < 5.4.154","linux_kernel >= 5.5, < 5.10.74","linux_kernel >= 5.11, < 5.14.13","linux_kernel = 5.15"],"patched":["linux_kernel 5.14.13"],"published":"2024-05-21","updated":"2026-08-11","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-47431","references":[{"url":"https://git.kernel.org/stable/c/18d1c5ea3798ba42cfa0f8b2264d873463facb03","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/621ddffb70db824eabd63d18ac635180fe9500f9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/66805763a97f8f7bdf742fc0851d85c02ed9411f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/83d857d6b0967b6709cd38750c3ce2ed8ced1a95","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/18d1c5ea3798ba42cfa0f8b2264d873463facb03","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/621ddffb70db824eabd63d18ac635180fe9500f9","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/66805763a97f8f7bdf742fc0851d85c02ed9411f","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/83d857d6b0967b6709cd38750c3ce2ed8ced1a95","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00222,"epssPercentile":0.13096,"ingestedAt":"2026-08-11T16:47:03.078Z","slug":"CVE-2021-47431","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix gart.bo pin_count leak\n\ngmc_v{9,10}_0_gart_disable() isn't called matched with\ncorrespoding gart_enbale function in SRIOV case. This will\nlead to gart.bo pin_count leak on driver unload.\n\n## Affected\n\n- `linux_kernel >= 4.2, < 5.4.154`\n- `linux_kernel >= 5.5, < 5.10.74`\n- `linux_kernel >= 5.11, < 5.14.13`\n- `linux_kernel = 5.15`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.14.13`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}