On Wed, Jan 11, 2023 at 04:52:21PM +0100, Paul Holzinger wrote: > Hi all, > > Since updating to 6.0.16 the bind() system call no longer fails with > EADDRINUSE when the address is already in use. > Instead bind() returns 1 in such a case, which is not a valid return > value for this system call. > > It works with the 6.0.15 kernel and earlier, 6.1.4 and 6.2-rc3 also > seem to work. > > Fedora bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2159066 > > To reproduce you can just run `ncat -l 5000` two times, the second one > should fail. However it just uses a random port instead. > > As far as I can tell this problem is caused by > https://lore.kernel.org/stable/20221228144337.512799851@xxxxxxxxxxxxxxxxxxx/ > which did not backport commit 7a7160edf1bf properly. > The line `int ret = -EADDRINUSE, port = snum, l3mdev;` is missing in > net/ipv4/inet_connection_sock.c. > This is the working 6.1 patch: > https://lore.kernel.org/all/20221228144339.969733443@xxxxxxxxxxxxxxxxxxx/ As 6.0.y is now end-of-life, is there anything keeping you on that kernel tree? If you send a fix-up patch for this, I'll gladly apply it and push out one more 6.0 release with it. thanks, g reg k-h
