CVE-2021-47133

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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: [<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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/29beadea66a226d744d5ffdcde6b984623053d24 Patch
https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1 Patch
https://git.kernel.org/stable/c/29beadea66a226d744d5ffdcde6b984623053d24 Patch
https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*
History

07 Jan 2025, 17:30

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/29beadea66a226d744d5ffdcde6b984623053d24 - () https://git.kernel.org/stable/c/29beadea66a226d744d5ffdcde6b984623053d24 - Patch
References () https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1 - () https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1 - Patch
CWE CWE-401
CPE cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*
First Time Linux
Linux linux Kernel

21 Nov 2024, 06:35

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: HID: amd_sfh: Reparar pérdida de memoria en amd_sfh_work La herramienta Kmemleak detectó una pérdida de memoria en el controlador amd_sfh. ==================== objeto sin referencia 0xffff88810228ada0 (tamaño 32): comm "insmod", pid 3968, jiffies 4295056001 (edad 775,792 s) volcado hexadecimal (primeros 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 "................. retroceso: [&lt; 000000007b4c8799&gt;] kmem_cache_alloc_trace+0x163/0x4f0 [&lt;0000000005326893&gt;] amd_sfh_get_report+0xa4/0x1d0 [amd_sfh] [&lt;000000002a9e5ec4&gt;] amdtp_hid_request+0x6 2/0x80 [amd_sfh] [&lt;00000000b8a95807&gt;] sensor_hub_get_feature+0x145/0x270 [hid_sensor_hub] [&lt;00000000fda054ee &gt;] hid_sensor_parse_common_attributes+0x215/0x460 [hid_sensor_iio_common] [&lt;0000000021279ecf&gt;] hid_accel_3d_probe+0xff/0x4a0 [hid_sensor_accel_3d] [&lt;00000000915760ce&gt;] platform_probe+0x6a/0xd0 [ &lt;0000000060258a1f&gt;] very_probe+0x192/0x620 [&lt;00000000fa812f2d&gt;] driver_probe_device+ 0x14a/0x1d0 [&lt;000000005e79f7fd&gt;] __device_attach_driver+0xbd/0x110 [&lt;0000000070d15018&gt;] bus_for_each_drv+0xfd/0x160 [&lt;0000000013a3c312&gt;] __device_attach+0x1 8b/0x220 [&lt;000000008c7b4afc&gt;] dispositivo_sonda_inicial+0x13/0x20 [&lt;00000000e6e99665&gt;] bus_probe_dispositivo+ 0xfe/0x120 [&lt;00000000833fa90b&gt;] device_add+0x6a6/0xe00 [&lt;00000000fa901078&gt;] platform_device_add+0x180/0x380 ===================== La solución es liberar la entrada request_list una vez que la entrada procesada se elimina de request_list.
References () https://git.kernel.org/stable/c/29beadea66a226d744d5ffdcde6b984623053d24 - () https://git.kernel.org/stable/c/29beadea66a226d744d5ffdcde6b984623053d24 -
References () https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1 - () https://git.kernel.org/stable/c/5ad755fd2b326aa2bc8910b0eb351ee6aece21b1 -

15 Mar 2024, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-15 21:15

Updated : 2025-01-07 17:30

NVD link : CVE-2021-47133

Mitre link : CVE-2021-47133

CVE.ORG link : CVE-2021-47133

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime