On Fri, 20 Nov 2020 20:01:49 +0200 Vladimir Oltean wrote: > On Thu, Nov 19, 2020 at 12:09:06PM +0100, Christian Eggers wrote: > > If dsa_switch_ops::port_txtstamp() returns false, clone will be freed > > immediately. Shouldn't store a pointer to freed memory. > > > > Signed-off-by: Christian Eggers <cegg...@arri.de> > > Fixes: 146d442c2357 ("net: dsa: Keep a pointer to the skb clone for TX > > timestamping") > > --- > > IMO this is one of the cases to which the following from > Documentation/process/stable-kernel-rules.rst does not apply: > > - It must fix a real bug that bothers people (not a, "This could be a > problem..." type thing). > > Therefore, specifying "net-next" as the target tree here as opposed to > "net" is the correct choice.
The commit message doesn't really explain what happens after. Is the dangling pointer ever accessed?