In the Linux kernel, the following vulnerability has been resolved: thermal: intel: int340x: processor: Fix warning during module unload The processorthermal driver uses pcimdeviceenable() to enable a PCI device, which means the device will be automatically disabled on driver detach. Thus there is no need to call pcidisabledevice() again on it. With recent PCI device resource management improvements, e.g. commit f748a07a0b64 ("PCI: Remove legacy pcimrelease()"), this problem is exposed and triggers the warining below. [ 224.010735] procthermalpci 0000:00:04.0: disabling already-disabled device [ 224.010747] WARNING: CPU: 8 PID: 4442 at drivers/pci/pci.c:2250 pcidisabledevice+0xe5/0x100 ... [ 224.010844] Call Trace: [ 224.010845] <TASK> [ 224.010847] ? showregs+0x6d/0x80 [ 224.010851] ? _warn+0x8c/0x140 [ 224.010854] ? pcidisabledevice+0xe5/0x100 [ 224.010856] ? reportbug+0x1c9/0x1e0 [ 224.010859] ? handlebug+0x46/0x80 [ 224.010862] ? excinvalidop+0x1d/0x80 [ 224.010863] ? asmexcinvalidop+0x1f/0x30 [ 224.010867] ? pcidisabledevice+0xe5/0x100 [ 224.010869] ? pcidisabledevice+0xe5/0x100 [ 224.010871] ? kfree+0x21a/0x2b0 [ 224.010873] pcimdisabledevice+0x20/0x30 [ 224.010875] devmactionrelease+0x16/0x20 [ 224.010878] releasenodes+0x47/0xc0 [ 224.010880] devresreleaseall+0x9f/0xe0 [ 224.010883] deviceunbindcleanup+0x12/0x80 [ 224.010885] devicereleasedriverinternal+0x1ca/0x210 [ 224.010887] driverdetach+0x4e/0xa0 [ 224.010889] busremovedriver+0x6f/0xf0 [ 224.010890] driverunregister+0x35/0x60 [ 224.010892] pciunregisterdriver+0x44/0x90 [ 224.010894] procthermalpcidriverexit+0x14/0x5f0 [processorthermaldevicepci] ... [ 224.010921] ---[ end trace 0000000000000000 ]--- Remove the excess pcidisabledevice() calls. [ rjw: Subject and changelog edits ]