On Thu, Apr 15, 2021 at 06:37:41PM +0200, Greg Kroah-Hartman wrote: > On Thu, Apr 15, 2021 at 09:28:15AM -0700, Guenter Roeck wrote: > > Hi Greg, > > > > please consider applying the following two patches to v4.4.y, v4.9.y, and v4.14.y > > > > 80055dab5de0 ("netfilter: x_tables: make xt_replace_table wait until old rules are not used anymore") > > 175e476b8cdf ("netfilter: x_tables: Use correct memory barriers.") > > The second patch here says that it's only needed to go back until: > Fixes: 7f5c6d4f665b ("netfilter: get rid of atomic ops in fast path") > > Which is only backported to 4.19. So why do older kernels need that, is > the fixes tag wrong? > Where do you get that from ? 7f5c6d4f665b is, from what I can see, in v3.0. $ git describe 7f5c6d4f665b v2.6.39-rc1-159-g7f5c6d4f665b $ git log --oneline v2.6.39..v3.0 | grep "netfilter: get rid of atomic ops in fast path" 7f5c6d4f665b netfilter: get rid of atomic ops in fast path Thanks, Guenter