In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Added NULL check for lookupatid The lookupatid() function can return NULL if the ATID is invalid or does not exist in the identifier table, which could lead to dereferencing a null pointer without a check in the act_establish()
and act_open_rpl()
functions. Add a NULL check to prevent null pointer dereferencing. Found by Linux Verification Center (linuxtesting.org) with SVACE.