CVE-2022-48974

CVE-2022-48974 – Linux kernel netfilter conntrack fix : The vulnerability occurs in nf_conntrack_hash_check_insert() when nf_ct_ext_valid_pre/post() paths call NF_CT_STAT_INC() in a preemptible context, enabling a use-after-free-like trace. The fix patches nf_conntrack to use NF_CT_STAT_INC_ATOMI...

CVE-2022-48974 netfilter: conntrack: fix using __this_cpu_add in preemptible

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: fix using thiscpuadd in preemptible Currently in nfconntrackhashcheckinsert, when it fails in nfctextvalidpre/post, NFCTSTATINC will be called in the preemptible context, a call trace can be triggered: BUG:...