CVE-2024-46761 (GCVE-0-2024-46761)
Vulnerability from cvelistv5
Published
2024-09-18 07:12
Modified
2026-01-05 10:53
Severity ?
Summary
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
Impacted products
Vendor Product Version
Linux Linux Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 49f4b08e61547a5ccd2db551d994c4503efe5666
Version: 1fb738a3dc1304250c755e5e31715137c1c44c50
Version: bc4c9766324a7e9fda48de58691796430c8511bf
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}


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