{"cve":"CVE-2021-47042","nvd":{"published":"2024-02-28T09:15:40.083","modified":"2026-06-17T04:16:17.290","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Free local data after use\n\nFixes the following memory leak in dc_link_construct():\n\nunreferenced object 0xffffa03e81471400 (size 1024):\ncomm \"amd_module_load\", pid 2486, jiffies 4294946026 (age 10.544s)\nhex dump (first 32 bytes):\n00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\nbacktrace:\n[<000000000bdf5c4a>] kmem_cache_alloc_trace+0x30a/0x4a0\n[<00000000e7c59f0e>] link_create+0xce/0xac0 [amdgpu]\n[<000000002fb6c072>] dc_create+0x370/0x720 [amdgpu]\n[<000000000094d1f3>] amdgpu_dm_init+0x18e/0x17a0 [amdgpu]\n[<00000000bec048fd>] dm_hw_init+0x12/0x20 [amdgpu]\n[<00000000a2bb7cf6>] amdgpu_device_init+0x1463/0x1e60 [amdgpu]\n[<0000000032d3bb13>] amdgpu_driver_load_kms+0x5b/0x330 [amdgpu]\n[<00000000a27834f9>] amdgpu_pci_probe+0x192/0x280 [amdgpu]\n[<00000000fec7d291>] local_pci_probe+0x47/0xa0\n[<0000000055dbbfa7>] pci_device_probe+0xe3/0x180\n[<00000000815da970>] really_probe+0x1c4/0x4e0\n[<00000000b4b6974b>] driver_probe_device+0x62/0x150\n[<000000000f9ecc61>] device_driver_attach+0x58/0x60\n[<000000000f65c843>] __driver_attach+0xd6/0x150\n[<000000002f5e3683>] bus_for_each_dev+0x6a/0xc0\n[<00000000a1cfc897>] driver_attach+0x1e/0x20","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/296443139f893b554dddd56a99ba8471ab5802d4","https://git.kernel.org/stable/c/616cf23b6cf40ad6f03ffbddfa1b6c4eb68d8ae1","https://git.kernel.org/stable/c/296443139f893b554dddd56a99ba8471ab5802d4","https://git.kernel.org/stable/c/616cf23b6cf40ad6f03ffbddfa1b6c4eb68d8ae1"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:45:59.823092188+00:00"},"epss":{"cve":"CVE-2021-47042","score":0.00205,"percentile":0.10506,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}