PT-2024-11330 · Linux+1 · Linux Kernel+1

Chunfeng Yun · Published 2021-05-21 · Updated 2024-12-24 · CVE-2021-47331

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue arises when the system is powered on with an OTG cable, and IDDIG's interrupt occurs before the charger registration, causing a NULL pointer dereference. The problem is fixed by registering the power supply before requesting IDDIG/VBUS irq.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-07398

CVE-2021-47331

Affected Products

Astra Linux

Linux Kernel

References · 20

• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47331 · Vendor Advisory
• https://git.kernel.org/stable/c/1a133a0996d6b4c83509d570ed4edcba34c44f25 · Patch
• https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1 · Patch
• https://bdu.fstec.ru/vul/2025-07398 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-47331 · Vendor Advisory
• https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b · Patch
• https://osv.dev/vulnerability/CVE-2021-47331 · Vendor Advisory
• https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21 · Patch
• https://ubuntu.com/security/CVE-2021-47331 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47331 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47331 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-47331 · Security Note
• https://git.kernel.org/linus/880287910b1892ed2cb38977893b947382a09d21 · Note
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.52 · Note
• https://t.me/cvenotify/105409 · Telegram Post