{"cve":"CVE-2021-47133","nvd":{"published":"2024-03-15T21:15:07.733","modified":"2026-06-17T04:16:36.717","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: amd_sfh: Fix memory leak in amd_sfh_work\n\nKmemleak tool detected a memory leak in the amd_sfh driver.\n\n====================\nunreferenced object 0xffff88810228ada0 (size 32):\n  comm \"insmod\", pid 3968, jiffies 4295056001 (age 775.792s)\n  hex dump (first 32 bytes):\n    00 20 73 1f 81 88 ff ff 00 01 00 00 00 00 ad de  . s.............\n    22 01 00 00 00 00 ad de 01 00 02 00 00 00 00 00  \"...............\n  backtrace:\n    [<000000007b4c8799>] kmem_cache_alloc_trace+0x163/0x4f0\n    [<0000000005326893>] amd_sfh_get_report+0xa4/0x1d0 [amd_sfh]\n    [<000000002a9e5ec4>] amdtp_hid_request+0x62/0x80 [amd_sfh]\n    [<00000000b8a95807>] sensor_hub_get_feature+0x145/0x270 [hid_sensor_hub]\n    [<00000000fda054ee>] hid_sensor_parse_common_attributes+0x215/0x460 [hid_sensor_iio_common]\n    [<0000000021279ecf>] hid_accel_3d_probe+0xff/0x4a0 [hid_sensor_accel_3d]\n    [<00000000915760ce>] platform_probe+0x6a/0xd0\n    [<0000000060258a1f>] really_probe+0x192/0x620\n    [<00000000fa812f2d>] driver_probe_device+0x14a/0x1d0\n    [<000000005e79f7fd>] __device_attach_driver+0xbd/0x110\n    [<0000000070d15018>] bus_for_each_drv+0xfd/0x160\n    [<0000000013a3c312>] __device_attach+0x18b/0x220\n    [<000000008c7b4afc>] device_initial_probe+0x13/0x20\n    [<00000000e6e99665>] bus_probe_device+0xfe/0x120\n    [<00000000833fa90b>] device_add+0x6a6/0xe00\n    [<00000000fa901078>] platform_device_add+0x180/0x380\n====================\n\nThe fix is to freeing request_list entry once the processed entry is\nremoved from the request_list.","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/29beadea66a226d744d5ffdcde6b984623053d24","https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1","https://git.kernel.org/stable/c/29beadea66a226d744d5ffdcde6b984623053d24","https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:46:54.846886191+00:00"},"epss":{"cve":"CVE-2021-47133","score":0.00193,"percentile":0.09071,"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."]}