CVE-2021-47101

In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03	Patch
https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56	Patch
https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03	Patch
https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc5::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc6::::::

History

No history.

Information

Published : 2024-03-04 18:15

Updated : 2025-02-03 14:02

NVD link : CVE-2021-47101

Mitre link : CVE-2021-47101

CVE.ORG link : CVE-2021-47101

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-908

Use of Uninitialized Resource

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