Messages in this thread |  | | Subject | Re: WARNING in add_uevent_var | From | Johannes Berg <> | Date | Tue, 03 Apr 2018 14:34:05 +0200 |
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On Sun, 2018-04-01 at 23:01 -0700, syzbot wrote:
> So far this crash happened 5 times on net-next, upstream. > C reproducer: https://syzkaller.appspot.com/x/repro.c?id=6614377067184128 >
Huh, fun. Looks like you're basically creating a new HWSIM radio with an insanely long name (4k!) and nothing stops you, until we try to generate an rfkill instance which sends a uevent and only has a 2k buffer for the environment variables, where we put the name ...
But yeah, we should probably limit the phy name to something sane, I'll pick 128 and send a patch.
johannes
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