title: HID: amd_sfh: Fix memory leak in amd_sfh_work
description: 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:
[<000000007b4c8799>] kmem_cache_alloc_trace+0x163/0x4f0
[<0000000005326893>] amd_sfh_get_report+0xa4/0x1d0 [amd_sfh]
[<000000002a9e5ec4>] amdtp_hid_request+0x62/0x80 [amd_sfh]
[<00000000b8a95807>] sensor_hub_get_feature+0x145/0x270 [hid_sensor_hub]
[<00000000fda054ee>] hid_sensor_parse_common_attributes+0x215/0x460 [hid_sensor_iio_common]
[<0000000021279ecf>] hid_accel_3d_probe+0xff/0x4a0 [hid_sensor_accel_3d]
[<00000000915760ce>] platform_probe+0x6a/0xd0
[<0000000060258a1f>] really_probe+0x192/0x620
[<00000000fa812f2d>] driver_probe_device+0x14a/0x1d0
[<000000005e79f7fd>] __device_attach_driver+0xbd/0x110
[<0000000070d15018>] bus_for_each_drv+0xfd/0x160
[<0000000013a3c312>] __device_attach+0x18b/0x220
[<000000008c7b4afc>] device_initial_probe+0x13/0x20
[<00000000e6e99665>] bus_probe_device+0xfe/0x120
[<00000000833fa90b>] device_add+0x6a6/0xe00
[<00000000fa901078>] platform_device_add+0x180/0x380
====================
The fix is to freeing request_list entry once the processed entry is
removed from the request_list.
affected:
{
product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions:
version: 4b2c53d93a4b, lessThan: 29beadea66a2, status: affected, versionType: git
version: 4b2c53d93a4b, lessThan: 5ad755fd2b32, status: affected, versionType: git
}
{
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions:
version: 5.11, status: affected
version: 0, lessThan: 5.11, status: unaffected, versionType: custom
version: 5.12.10, lessThanOrEqual: 5.12.*, status: unaffected, versionType: custom
version: 5.13, lessThanOrEqual: *, status: unaffected, versionType: original_commit_for_fix
}
