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Vulnerability · Published Sep 18, 2024 · Assigned by Linux

CVE-2024-46761pci/hotplug/pnv_php: Fix hotplug driver crash on Powernv

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 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 83.4% 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: pci/hotplug/pnv_php: Fix hotplug driver crash on Powernv The hotplug driver for powerpc (pci/hotplug/pnv_php.c) causes a kernel crash when we try to hot-unplug/disable the PCIe switch/bridge from the PHB. The crash occurs because although the MSI data structure has been released during disable/hot-unplug path and it has been assigned with NULL, still during unregistration the code was again trying to explicitly disable the MSI which causes the NULL pointer dereference and kernel crash. The patch fixes the check during unregistration path to prevent invoking pci_disable_msi/msix() since its data structure is already freed.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.112-1DEBIAN-CVE-2024-46761
Debian:13linux6.10.11-1DEBIAN-CVE-2024-46761
Debian:14linux6.10.11-1DEBIAN-CVE-2024-46761
Ubuntu:22.04:LTSlinux5.15.0-125.135UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux6.8.0-50.51UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-aws5.15.0-1072.78UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-aws6.8.0-1020.22UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1020.22~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure5.15.0-1075.84UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-azure6.8.0-1020.23UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1020.23~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1076.85.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-gcp5.15.0-1071.79UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-gcp6.8.0-1019.21UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1019.21~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-gke5.15.0-1069.75UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-gke6.8.0-1015.19UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1055.62UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1002.4UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-50.51~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-ibm5.15.0-1065.68UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-ibm6.8.0-1017.17UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1017.17~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1067.73UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-kvm5.15.0-1069.74UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-125.135UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-50.51.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-50.51.1~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1067.68UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1019.21UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1019.21~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1019.21.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1032.32UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1020.20UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1018.18UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-oracle5.15.0-1070.76UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-oracle6.8.0-1017.18UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1017.18~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-raspi5.15.0-1065.68UBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-raspi6.8.0-1016.18UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-riscv6.8.0-50.51.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-50.51.1~22.04.1UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-46761
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2024-46761
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1038.42UBUNTU-CVE-2024-46761

Affected products (as reported)

VendorProductVersions
Linux Linux 49f4b08e61547a5ccd2db551d994c4503efe5666 – before 4eb4085c1346d19d4a05c55246eb93e74e67104849f4b08e61547a5ccd2db551d994c4503efe5666 – before c4c681999d385e28f84808bbf3a85ea8e982da5549f4b08e61547a5ccd2db551d994c4503efe5666 – before bc1faed19db95abf0933b104910a3fb01b138f5949f4b08e61547a5ccd2db551d994c4503efe5666 – before c0d8094dc740cfacf3775bbc6a1c4720459e8de449f4b08e61547a5ccd2db551d994c4503efe5666 – before 438d522227374042b5c8798f8ce83bbe479dca4d49f4b08e61547a5ccd2db551d994c4503efe5666 – before b82d4d5c736f4fd2ed224c35f554f50d1953d21e49f4b08e61547a5ccd2db551d994c4503efe5666 – before bfc44075b19740d372f989f21dd03168bfda068949f4b08e61547a5ccd2db551d994c4503efe5666 – before 335e35b748527f0c06ded9eebb65387f60647fda
Linux Linux 4.11

References