CVE-2021-47133

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