CVE-2024-50093

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> thermal: intel: int340x: processor: Fix warning during module unload<br /> <br /> The processor_thermal driver uses pcim_device_enable() to enable a PCI<br /> device, which means the device will be automatically disabled on driver<br /> detach. Thus there is no need to call pci_disable_device() again on it.<br /> <br /> With recent PCI device resource management improvements, e.g. commit<br /> f748a07a0b64 ("PCI: Remove legacy pcim_release()"), this problem is<br /> exposed and triggers the warining below.<br /> <br /> [ 224.010735] proc_thermal_pci 0000:00:04.0: disabling already-disabled device<br /> [ 224.010747] WARNING: CPU: 8 PID: 4442 at drivers/pci/pci.c:2250 pci_disable_device+0xe5/0x100<br /> ...<br /> [ 224.010844] Call Trace:<br /> [ 224.010845] <br /> [ 224.010847] ? show_regs+0x6d/0x80<br /> [ 224.010851] ? __warn+0x8c/0x140<br /> [ 224.010854] ? pci_disable_device+0xe5/0x100<br /> [ 224.010856] ? report_bug+0x1c9/0x1e0<br /> [ 224.010859] ? handle_bug+0x46/0x80<br /> [ 224.010862] ? exc_invalid_op+0x1d/0x80<br /> [ 224.010863] ? asm_exc_invalid_op+0x1f/0x30<br /> [ 224.010867] ? pci_disable_device+0xe5/0x100<br /> [ 224.010869] ? pci_disable_device+0xe5/0x100<br /> [ 224.010871] ? kfree+0x21a/0x2b0<br /> [ 224.010873] pcim_disable_device+0x20/0x30<br /> [ 224.010875] devm_action_release+0x16/0x20<br /> [ 224.010878] release_nodes+0x47/0xc0<br /> [ 224.010880] devres_release_all+0x9f/0xe0<br /> [ 224.010883] device_unbind_cleanup+0x12/0x80<br /> [ 224.010885] device_release_driver_internal+0x1ca/0x210<br /> [ 224.010887] driver_detach+0x4e/0xa0<br /> [ 224.010889] bus_remove_driver+0x6f/0xf0<br /> [ 224.010890] driver_unregister+0x35/0x60<br /> [ 224.010892] pci_unregister_driver+0x44/0x90<br /> [ 224.010894] proc_thermal_pci_driver_exit+0x14/0x5f0 [processor_thermal_device_pci]<br /> ...<br /> [ 224.010921] ---[ end trace 0000000000000000 ]---<br /> <br /> Remove the excess pci_disable_device() calls.<br /> <br /> [ rjw: Subject and changelog edits ]