CVE-2021-47442

Published: May 22, 2024Modified: Jan 7, 2025

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_in_send_sdd_req() 'skb' is allocated in digital_in_send_sdd_req(), but not free when digital_in_send_cmd() failed, which will cause memory leak. Fix it by freeing 'skb' if digital_in_send_cmd() return failed.

Affected (12)

Products: Linux: Linux Kernel

1 product

Configuration A

12 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 3.13 to 4.4.290
Linux Linux Kernel	From 4.10 to 4.14.252
Linux Linux Kernel	From 4.15 to 4.19.213
Linux Linux Kernel	From 4.20 to 5.4.155
Linux Linux Kernel	From 4.5 to 4.9.288
Linux Linux Kernel	From 5.11 to 5.14.14
Linux Linux Kernel	From 5.5 to 5.10.75
Linux Linux Kernel	Version 5.15 rc1
Linux Linux Kernel	Version 5.15 rc2
Linux Linux Kernel	Version 5.15 rc3
Linux Linux Kernel	Version 5.15 rc4
Linux Linux Kernel	Version 5.15 rc5

Related CWEs

Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

References (16)

https://git.kernel.org/stable/c/071bdef36391958c89af5fa2172f691b31baa212

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/291c932fc3692e4d211a445ba8aa35663831bac7

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/2bde4aca56db9fe25405d39ddb062531493a65db

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/50cb95487c265187289810addec5093d4fed8329

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/74569c78aa84f8c958f1334b465bc530906ec99a

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/88c890b0b9a1fb9fcd01c61ada515e8b636c34f9

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/fcce6e5255474ca33c27dda0cdf9bf5087278873

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/071bdef36391958c89af5fa2172f691b31baa212

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/291c932fc3692e4d211a445ba8aa35663831bac7

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/2bde4aca56db9fe25405d39ddb062531493a65db

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/50cb95487c265187289810addec5093d4fed8329

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/74569c78aa84f8c958f1334b465bc530906ec99a

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/88c890b0b9a1fb9fcd01c61ada515e8b636c34f9

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/fcce6e5255474ca33c27dda0cdf9bf5087278873

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

Timeline

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