Messages in this thread | | | Date | Sat, 1 Apr 2023 08:33:36 +0200 | From | Greg KH <> | Subject | Re: BUG FIX: [PATCH RFC v3] memstick_check() memleak in kernel 6.1.0+ introduced pre 4.17 |
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On Sat, Apr 01, 2023 at 08:28:07AM +0200, Greg KH wrote: > On Sat, Apr 01, 2023 at 08:23:26AM +0200, Mirsad Goran Todorovac wrote: > > > This patch is implying that anyone who calls "dev_set_name()" also has > > > to do this hack, which shouldn't be the case at all. > > > > > > thanks, > > > > > > greg k-h > > > > This is my best guess. Unless there is dev_free_name() or kobject_free_name(), I don't > > see a more sensible way to patch this up. > > In sleeping on this, I think this has to move to the driver core. I > don't understand why we haven't seen this before, except maybe no one > has really noticed before (i.e. we haven't had good leak detection tools > that run with removable devices?) > > Anyway, let me see if I can come up with something this weekend, give me > a chance...
Wait, no, this already should be handled by the kobject core, look at kobject_cleanup(), at the bottom. So your change should be merely duplicating the logic there that already runs when the struct device is freed, right?
So I don't understand why your change works, odd. I need more coffee...
thanks,
greg k-h
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