From: Roman Mashak <m...@mojatatu.com> Date: Fri, 11 May 2018 10:55:09 -0400
> When application fails to pass flags in netlink TLV for a new skbedit action, > the kernel results in the following oops: ... > The caller calls action's ->init() and passes pointer to "struct tc_action > *a", > which later may be initialized to point at the existing action, otherwise > "struct tc_action *a" is still invalid, and therefore dereferencing it is an > error as happens in tcf_idr_release, where refcnt is decremented. > > So in case of missing flags tcf_idr_release must be called only for > existing actions. > > v2: > - prepare patch for net tree > > Signed-off-by: Roman Mashak <m...@mojatatu.com> Applied and queued up for -stable.
