On Tue, Sep 15, 2020 at 12:17:55AM +0530, Anmol Karn wrote: > On Mon, Sep 14, 2020 at 12:08:03PM +0100, Matthew Wilcox wrote: > > On Mon, Sep 14, 2020 at 12:47:24PM +0530, Anmol Karn wrote: > > > idr_get_next() gives WARN_ON_ONCE() when it gets (id > INT_MAX) true > > > and this happens when syzbot does fuzzing, and that warning is > > > expected, but WARN_ON_ONCE() is not required here and, cecking > > > the condition and returning NULL value would be suffice. > > > > > > Reference: commit b9959c7a347 ("filldir[64]: remove WARN_ON_ONCE() for bad directory entries") > > > Reported-and-tested-by: syzbot+f7204dcf3df4bb4ce42c@xxxxxxxxxxxxxxxxxxxxxxxxx > > > Link: https://syzkaller.appspot.com/bug?extid=f7204dcf3df4bb4ce42c > > > Signed-off-by: Anmol Karn <anmol.karan123@xxxxxxxxx> > > > > https://lore.kernel.org/netdev/20200605120037.17427-1-willy@xxxxxxxxxxxxx/ > > Hello sir, > > I have looked into the patch, and it seems the problem is fixed to the root cause > in this patch, but not yet merged due to some backport issues, so, please ignore > this patch(sent by me), and please let me know if i can contribute to fixing this > bug's root cause. The root cause is that the network maintainers believe I have a far greater interest in the qrtr code than I actually do, and the maintainer of the qrtr code is not doing anything.