Memory leak in Linux kernel - CVE-2021-47054

Vulnerability identifier: #VU91658

CSH Severity: Low

CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47054

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the qcom_ebi2_probe() function in drivers/bus/qcom-ebi2.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
openEuler
Dell Data Protection Central
PowerProtect DP Series Appliance (IDPA)
Storage Resource Manager
EMC Cloud Tiering Appliance
python3-perf-debuginfo
python3-perf
kernel-source
python2-perf-debuginfo
kernel-debugsource
python2-perf
perf
kernel-tools-devel
perf-debuginfo
kernel-tools
bpftool-debuginfo
kernel-tools-debuginfo
bpftool
kernel-debuginfo
kernel-devel
kernel
Dell EMC Storage Monitoring and Reporting (SMR)
Dell Secure Connect Gateway

Install update from vendor's website.

Linux kernel - addressed in versions 4.9.269, 4.14.233, 4.19.191, 5.4.119, 5.10.37, 5.11.21, 5.12.4, 5.13
python3-perf-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
python3-perf - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-source - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
python2-perf-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-debugsource - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
python2-perf - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
perf - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-tools-devel - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
perf-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-tools - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
bpftool-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-tools-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
bpftool - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-devel - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
Storage Resource Manager - update to 5.0.1.0
Dell EMC Storage Monitoring and Reporting (SMR) - update to 5.0.1.0
Dell Secure Connect Gateway - update to 5.24.00.14
EMC Cloud Tiering Appliance - update to 13.2.0.2.29

• https://git.kernel.org/stable/c/a6191e91c10e50bd51db65a00e03d02b6b0cf8c4
• https://git.kernel.org/stable/c/94810fc52925eb122a922df7f9966cf3f4ba7391
• https://git.kernel.org/stable/c/a399dd80e697a02cfb23e2fc09b87849994043d9
• https://git.kernel.org/stable/c/3a76ec28824c01b57aa1f0927841d75e4f167cb8
• https://git.kernel.org/stable/c/00f6abd3509b1d70d0ab0fbe65ce5685cebed8be
• https://git.kernel.org/stable/c/6b68c03dfc79cd95a58dfd03f91f6e82829a1b0c
• https://git.kernel.org/stable/c/c6f8e0dc8da1cd78d640dee392071cc2326ec1b2
• https://git.kernel.org/stable/c/ac6ad7c2a862d682bb584a4bc904d89fa7721af8
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.233
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.191
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.269
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.119

• Memory leak in Linux kernel bus driver
• Multiple vulnerabilities in Dell Secure Connect Gateway
• Multiple vulnerabilities in Dell Cloud Tiering Appliance
• openEuler 20.03 LTS SP1 update for kernel
• openEuler 20.03 LTS SP4 update for kernel
• Multiple vulnerabilities in Dell Storage Resource Manager (SRM) and Dell Storage Monitoring and Reporting (SMR)
• Multiple vulnerabilities in Dell Data Protection Central