CVE - CVE-2024-46761

CVE-ID
CVE-2024-46761	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/335e35b748527f0c06ded9eebb65387f60647fda URL:https://git.kernel.org/stable/c/335e35b748527f0c06ded9eebb65387f60647fda MISC:https://git.kernel.org/stable/c/438d522227374042b5c8798f8ce83bbe479dca4d URL:https://git.kernel.org/stable/c/438d522227374042b5c8798f8ce83bbe479dca4d MISC:https://git.kernel.org/stable/c/4eb4085c1346d19d4a05c55246eb93e74e671048 URL:https://git.kernel.org/stable/c/4eb4085c1346d19d4a05c55246eb93e74e671048 MISC:https://git.kernel.org/stable/c/b82d4d5c736f4fd2ed224c35f554f50d1953d21e URL:https://git.kernel.org/stable/c/b82d4d5c736f4fd2ed224c35f554f50d1953d21e MISC:https://git.kernel.org/stable/c/bc1faed19db95abf0933b104910a3fb01b138f59 URL:https://git.kernel.org/stable/c/bc1faed19db95abf0933b104910a3fb01b138f59 MISC:https://git.kernel.org/stable/c/bfc44075b19740d372f989f21dd03168bfda0689 URL:https://git.kernel.org/stable/c/bfc44075b19740d372f989f21dd03168bfda0689 MISC:https://git.kernel.org/stable/c/c0d8094dc740cfacf3775bbc6a1c4720459e8de4 URL:https://git.kernel.org/stable/c/c0d8094dc740cfacf3775bbc6a1c4720459e8de4 MISC:https://git.kernel.org/stable/c/c4c681999d385e28f84808bbf3a85ea8e982da55 URL:https://git.kernel.org/stable/c/c4c681999d385e28f84808bbf3a85ea8e982da55
Assigning CNA
kernel.org
Date Record Created
20240911	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240911)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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