On Sat, 1 Feb 2020, Jakub Kicinski wrote: > On Sat, 1 Feb 2020 12:57:36 -0800, Jakub Kicinski wrote: > > On Fri, 31 Jan 2020 20:24:23 +0100, Pablo Neira Ayuso wrote: > > > From: Kadlecsik József <kadlec@xxxxxxxxxxxxxxxxx> > > > > > > find_set_and_id() is called when the NFNL_SUBSYS_IPSET mutex is held. > > > However, in the error path there can be a follow-up recvmsg() without > > > the mutex held. Use the start() function of struct netlink_dump_control > > > instead of dump() to verify and report if the specified set does not > > > exist. > > > > > > Thanks to Pablo Neira Ayuso for helping me to understand the subleties > > > of the netlink protocol. > > > > > > Reported-by: syzbot+fc69d7cb21258ab4ae4d@xxxxxxxxxxxxxxxxxxxxxxxxx > > > Signed-off-by: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxx> > > > Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> > > > > This will trigger a missing signed-off-by check: > > > > Commit 5038517119d5 ("netfilter: ipset: fix suspicious RCU usage in find_set_and_id") > > author Signed-off-by missing > > author email: kadlec@xxxxxxxxxxxxxxxxx > > committer email: pablo@xxxxxxxxxxxxx > > Signed-off-by: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxx> > > Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> > > > > Problem is that the name differs by 'o' vs 'ó' (József Kadlecsik). > > > > I wonder if it's worth getting rid of diacritics for the comparison.. > > Mm.. also the name and surname are the other way around :S Oh, my... Hungarian names... :-) But I also should set my sender email address to kadlec@xxxxxxxxxxxxx. What's the best approach for this patch? Shall I resend it? Best regards, Jozsef - E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlecsik.jozsef@xxxxxxxxxxxxx PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt Address : Wigner Research Centre for Physics H-1525 Budapest 114, POB. 49, Hungary