Threats Tagged 'ubuntu-cve-2025-21759'
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Threats Tagged 'ubuntu-cve-2025-21759'
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In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6_send() igmp6_send() can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep. Instead use alloc_skb() and charge the net->ipv6.igmp_sk socket under RCU protection. Join the discussion | GCVE Database | 02/27/2025, 03:15:00 UTC Added: 07/21/2026, 20:06:16 UTC |
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