Hi Greg, Nothing particular is keeping me on this kernel, it is currently shipped in fedora. I assume fedora will update to 6.1 as usual so updating is not a problem for me. I wasn't sure how long the 6.0 series gets updates so I decided to report it here. If it is EOL that is fine for me. Thanks, Paul On Thu, Jan 12, 2023 at 12:50 PM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > 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 >