CVE-2021-47133

In the Linux kernel, the following vulnerability has been resolved: HID: amd_sfh: Fix memory leak in amd_sfh_work Kmemleak tool detected a memory leak in the amd_sfh driver. ==================== unreferenced object 0xffff88810228ada0 (size 32): comm "insmod", pid 3968, jiffies 4295056001 (age 775.792s) hex dump (first 32 bytes): 00 20 73 1f 81 88 ff ff 00 01 00 00 00 00 ad de . s............. 22 01 00 00 00 00 ad de 01 00 02 00 00 00 00 00 "............... backtrace: [ ] kmem_cache_alloc_trace+0x163/0x4f0 [ ] amd_sfh_get_report+0xa4/0x1d0 [amd_sfh] [ ] amdtp_hid_request+0x62/0x80 [amd_sfh] [ ] sensor_hub_get_feature+0x145/0x270 [hid_sensor_hub] [ ] hid_sensor_parse_common_attributes+0x215/0x460 [hid_sensor_iio_common] [ ] hid_accel_3d_probe+0xff/0x4a0 [hid_sensor_accel_3d] [ ] platform_probe+0x6a/0xd0 [ ] really_probe+0x192/0x620 [ ] driver_probe_device+0x14a/0x1d0 [ ] __device_attach_driver+0xbd/0x110 [ ] bus_for_each_drv+0xfd/0x160 [ ] __device_attach+0x18b/0x220 [ ] device_initial_probe+0x13/0x20 [ ] bus_probe_device+0xfe/0x120 [ ] device_add+0x6a6/0xe00 [ ] platform_device_add+0x180/0x380 ==================== The fix is to freeing request_list entry once the processed entry is removed from the request_list.