Threats Tagged 'ghsa-pjh2-pg7v-jm22'
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Threats Tagged 'ghsa-pjh2-pg7v-jm22'
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A medium severity vulnerability in the Linux kernel's L2TP implementation allows an unprivileged local user with CAP_NET_ADMIN in a user namespace to indefinitely pin a host CPU. This occurs due to improper list deletion in l2tp_session_unhash(), causing a CPU to be wedged in a loop with BH and preemption disabled, stalling RCU grace periods and preventing thread termination. The issue is fixed by replacing list_del_init() with list_del_rcu() to safely remove sessions from the session list without disrupting RCU readers. Join the discussion | GCVE Database | 07/19/2026, 18:31:52 UTC Added: 07/19/2026, 19:38:16 UTC |
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