Re: KMSAN: uninit-value in __dev_mc_add

2018-09-27 Thread Vladis Dronov
Hello, Eric, all, > I dunno, your patch looks quite not the right fix. I agree, it looks more like a dirty hack. Unfortunately, I lack the deep expertise in the network stack subsystem, so I've posted the patch to, sort of, start a discussion and probably get some hints. > If TUN is able to cha

Re: KMSAN: uninit-value in __dev_mc_add

2018-09-27 Thread Eric Dumazet
On Thu, Sep 27, 2018 at 2:30 PM Vladis Dronov wrote: > > Hello, > > This report is actually for the same bug which was reported in: > > https://syzkaller.appspot.com/bug?id=088efeac32fdde781038a777a63e436c0d4d7036 > > The note there that the bug was fixed by "Commits: net: fix uninit-value in > __

Re: KMSAN: uninit-value in __dev_mc_add

2018-09-27 Thread Vladis Dronov
Hello, This report is actually for the same bug which was reported in: https://syzkaller.appspot.com/bug?id=088efeac32fdde781038a777a63e436c0d4d7036 The note there that the bug was fixed by "Commits: net: fix uninit-value in __hw_addr_add_ex()" is wrong. A C-reproducer from the 2nd syzkaller rep