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CVE-2024-41096 is a use-after-free in the Linux kernel PCI/MSI initialization path. During MSI descriptor setup, msi_capability_init() allocates an MSI descriptor through __pci_enable_msi_range(). If MSI IRQ-domain allocation subsequently fails, the failure path frees the descriptor. Control then returns to msi_capability_init(), whose error-exit path accesses the freed descriptor while attempting to unmask MSI. The fix preserves a copy of the descriptor for the error-path unmask operation, eliminating access to freed memory.
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A Linux kernel PCI/MSI vulnerability involving a use-after-free in msi_capability_init.
A Linux kernel PCI/MSI use-after-free vulnerability in the MSI capability initialization error path. If MSI IRQ allocation fails, an MSI descriptor can be freed and subsequently accessed while unmasking interrupts. The fix copies the descriptor for use during error handling.
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Cross-references every affected SKU, including bundled OEM variants.
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