CVE-2022-49525

In the Linux kernel, the following vulnerability has been resolved:

media: cx25821: Fix the warning when removing the module

When removing the module, we will get the following warning:

[ 14.746697] removeprocentry: removing non-empty directory 'irq/21', leaking at least 'cx25821[1]' [ 14.747449] WARNING: CPU: 4 PID: 368 at fs/proc/generic.c:717 removeprocentry+0x389/0x3f0 [ 14.751611] RIP: 0010:removeprocentry+0x389/0x3f0 [ 14.759589] Call Trace: [ 14.759792] <TASK> [ 14.759975] unregisterirqproc+0x14c/0x170 [ 14.760340] irqfreedescs+0x94/0xe0 [ 14.760640] mpunmapirq+0xb6/0x100 [ 14.760937] acpiunregistergsiioapic+0x27/0x40 [ 14.761334] acpipciirqdisable+0x1d3/0x320 [ 14.761688] pcidisabledevice+0x1ad/0x380 [ 14.762027] ? rawspinunlockirqrestore+0x2d/0x60 [ 14.762442] ? cx25821shutdown+0x20/0x9f0 [cx25821] [ 14.762848] cx25821finidev+0x48/0xc0 [cx25821] [ 14.763242] pcideviceremove+0x92/0x240

Fix this by freeing the irq before call pcidisabledevice().