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{"bugzilla": {"description": "kernel: drm/amd/display: Fix potential memory leak in DMUB hw_init", "id": "2282558", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282558"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L", "status": "draft"}, "cwe": "CWE-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amd/display: Fix potential memory leak in DMUB hw_init\n[Why]\nOn resume we perform DMUB hw_init which allocates memory:\ndm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc\nThat results in memory leak in suspend/resume scenarios.\n[How]\nAllocate memory for the DC wrapper to DMUB only if it was not\nallocated before.\nNo need to reallocate it on suspend/resume."], "name": "CVE-2021-47253", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47253\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47253\nhttps://lore.kernel.org/linux-cve-announce/2024052145-CVE-2021-47253-d6c6@gregkh/T"], "threat_severity": "Low"}