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Vulnerability · Published May 22, 2024 · Assigned by Linux

CVE-2021-47445drm/msm: Fix null pointer dereference on pointer edp

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 86.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix null pointer dereference on pointer edp The initialization of pointer dev dereferences pointer edp before edp is null checked, so there is a potential null pointer deference issue. Fix this by only dereferencing edp after edp has been null checked. Addresses-Coverity: ("Dereference before null check")

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.14.16-1DEBIAN-CVE-2021-47445
Debian:13linux5.14.16-1DEBIAN-CVE-2021-47445
Debian:14linux5.14.16-1DEBIAN-CVE-2021-47445
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-47445
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-47445
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-47445

Affected products (as reported)

VendorProductVersions
Linux Linux ab5b0107ccf3821a6837b0f2819270d6fa0b278f – before f175b9a83e5c252d7c74acddc792840016caae0aab5b0107ccf3821a6837b0f2819270d6fa0b278f – before bacac7d26849c8e903ceb7466d9ce8dc3c2797ebab5b0107ccf3821a6837b0f2819270d6fa0b278f – before 0cd063aa0a09822cc1620fc59a67fe2f9f6338acab5b0107ccf3821a6837b0f2819270d6fa0b278f – before 7f642b93710b6b1119bdff90be01e6b5a2a5d669ab5b0107ccf3821a6837b0f2819270d6fa0b278f – before f302be08e3de94db8863a0b2958b2bb3e8e998e6ab5b0107ccf3821a6837b0f2819270d6fa0b278f – before 91a340768b012f5b910a203a805b97a345b3db37ab5b0107ccf3821a6837b0f2819270d6fa0b278f – before 46c8ddede0273d1d132beefa9de8b820326982beab5b0107ccf3821a6837b0f2819270d6fa0b278f – before 2133c4fc8e1348dcb752f267a143fe2254613b34
Linux Linux 4.0

References