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Vulnerability · Published Jun 19, 2024 · Assigned by Linux

CVE-2024-38575wifi: brcmfmac: pcie: handle randbuf allocation failure

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 86.7% 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: wifi: brcmfmac: pcie: handle randbuf allocation failure The kzalloc() in brcmf_pcie_download_fw_nvram() will return null if the physical memory has run out. As a result, if we use get_random_bytes() to generate random bytes in the randbuf, the null pointer dereference bug will happen. In order to prevent allocation failure, this patch adds a separate function using buffer on kernel stack to generate random bytes in the randbuf, which could prevent the kernel stack from overflow.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:9bpftool7.3.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-debug5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-debug-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-debug-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-debug-modules5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-devel-matched5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-modules5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-modules-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-64k-modules-extra5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-abi-stablelists5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-cross-headers5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug-devel-matched5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug-modules5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug-modules-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug-modules-extra5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-debug-uki-virt5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-devel-matched5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-doc5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-headers5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-modules5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-modules-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-modules-extra5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-debug5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-debug-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-debug-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-debug-modules5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-modules5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-modules-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-rt-modules-extra5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-tools5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-tools-libs5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-tools-libs-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-uki-virt5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-zfcpdump5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-zfcpdump-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-zfcpdump-devel5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-zfcpdump-modules5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9libperf5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9perf5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9python3-perf5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9rtla5.14.0-427.31.1.el9_4ALSA-2024:5363
AlmaLinux:9rv5.14.0-427.31.1.el9_4ALSA-2024:5363
Debian:12linux6.1.94-1DEBIAN-CVE-2024-38575
Debian:13linux6.8.12-1DEBIAN-CVE-2024-38575
Debian:14linux6.8.12-1DEBIAN-CVE-2024-38575
Rocky Linux:9kernel0:5.14.0-427.31.1.el9_4RLSA-2024:5363
Ubuntu:24.04:LTSlinux6.8.0-40.40UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-aws6.8.0-1013.14UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-azure6.8.0-1012.14UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1012.14~22.04.1UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-gcp6.8.0-1012.13UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1012.13~22.04.1UBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-gke6.8.0-1008.11UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-40.40~22.04.3UBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-ibm6.8.0-1010.10UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-40.40.1UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1011.11UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1011.11~22.04.1UBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1011.11.1UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1010.10UBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-oracle6.8.0-1010.10UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-raspi6.8.0-1009.10UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-38575
Ubuntu:24.04:LTSlinux-riscv6.8.0-40.40.1UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-38575
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-38575

Affected products (as reported)

VendorProductVersions
Linux Linux c35105f375b530bc27e03ea9250b1c26dd4cae86 – before 0eb2c0528e232b3c32cde9d5e1c9f80ba2996e4991918ce88d9fef408bb12c46a27c73d79b604c20 – before c37466406f075476c2702ecc01917928af871f3b91918ce88d9fef408bb12c46a27c73d79b604c20 – before 7c15eb344b0d4d3468c9b2a7591ad2b859b29b8891918ce88d9fef408bb12c46a27c73d79b604c20 – before 3729ca9e48d19a03ae049e2bde510e161c2f372091918ce88d9fef408bb12c46a27c73d79b604c20 – before 316f790ebcf94bdf59f794b7cdea4068dc676d4cba72baed066f3bfa8b489e4b58f1fcaf51c04f836.1.30 – before 6.1.936.3.4 – before 6.4
Linux Linux 6.4

References