CVE-2021-47442

MEDIUM

Linux Kernel < 4.4.290 - Memory Leak

Title source: rule

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.

References (8)

[Patch] https://git.kernel.org/stable/c/071bdef36391958c89af5fa2172f691b31baa212

[Patch] https://git.kernel.org/stable/c/291c932fc3692e4d211a445ba8aa35663831bac7

[Patch] https://git.kernel.org/stable/c/2bde4aca56db9fe25405d39ddb062531493a65db

[Patch] https://git.kernel.org/stable/c/50cb95487c265187289810addec5093d4fed8329

[Patch] https://git.kernel.org/stable/c/6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86

[Patch] https://git.kernel.org/stable/c/74569c78aa84f8c958f1334b465bc530906ec99a

[Patch] https://git.kernel.org/stable/c/88c890b0b9a1fb9fcd01c61ada515e8b636c34f9

[Patch] https://git.kernel.org/stable/c/fcce6e5255474ca33c27dda0cdf9bf5087278873

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 1.4%

Attack Vector LOCAL

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

Classification

CWE

CWE-401

Status published

Affected Products (6)

linux/linux_kernel < 4.4.290

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

Timeline

Published May 22, 2024

Tracked Since Feb 18, 2026