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CVE-2026-89563 ip6_tunnel: use skb_cow_head() in ip6_tnl_xmit()

🗓️ 11 Sep 2026 19:44:34Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Double free of skb in Linux kernel ip6_tunnel due to skb_realloc_headroom() replacing caller-owned skb.

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