{"apiVersion":"1.0","identifier":"CVE-2026-74290","description":"In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_flow: Dont expose folded kernel pointers The flow classifier falls back to addr_fold() for fields that are missing from packet headers. In map mode, userspace controls mask, xor, rshift, addend and divisor, and can observe the resulting classid through class statistics. This allows a tc classifier in a user/network namespace to recover the 32-bit folded value of skb->sk, skb_dst() or skb_nfct(). Align with standard kernel practices for pointer hashing and replace the XOR folding with a keyed siphash (which is cryptographically secure)","publishedAt":"2026-08-15T06:22:28","lastModifiedAt":"2026-08-17T06:19:22","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74290","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00173,"riskScore":0,"affectedProduct":"linux","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74290","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74290","en":"https://www.redsauce.net/en/cves/CVE-2026-74290","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74290","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74290","de":"https://www.redsauce.net/de/cves/CVE-2026-74290","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74290","el":"https://www.redsauce.net/el/cves/CVE-2026-74290"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74290"}}