{"apiVersion":"1.0","identifier":"CVE-2026-74695","description":"In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_flow_table: drop existing skb dst before skb_dst_set_noref() Incoming skbs passing through netfilter flowtable offload hooks (or XFRM offload path) might already carry a ref-counted dst_entry assigned during earlier RX or routing steps. Calling skb_dst_set_noref() when skb already holds a ref-counted dst overwrites skb->_skb_refdst, leaking the previous dst_entry reference count and triggering a DEBUG_NET_WARN_ON_ONCE assertion in skb_dst_check_unset(): WARNING: at skb_dst_check_unset include/linux/skbuff.h:1170 WARNING: at skb_dst_set_noref include/linux/skbuff.h:1234 WARNING: at nf_flow_offload_ip_hook+0xf6c/0x2b60 net/netfilter/nf_flow_table_ip.c:864 Drop any existing dst_entry reference with skb_dst_drop(skb) before setting the non-referenced flowtable destination.","publishedAt":"2026-08-22T16:16:44","lastModifiedAt":"2026-08-25T06:18:53","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74695","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","epssProbability":0.00426,"riskScore":0.78,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74695","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74695","en":"https://www.redsauce.net/en/cves/CVE-2026-74695","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74695","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74695","de":"https://www.redsauce.net/de/cves/CVE-2026-74695","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74695","el":"https://www.redsauce.net/el/cves/CVE-2026-74695"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74695"}}