rcu-tasks: Fix access non-existent percpu rtpcp variable in rcu_tasks_need_gpcb()

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CVE-2024-49926 · Microsoft / collected KEV context

cve-program · CVE-2024-49926

• https://git.kernel.org/stable/c/a89f6e90e64ecadd19f32bb8128d22b518bd656c
• https://git.kernel.org/stable/c/b3b2431ed27f4ebc28e26cdf005c1de42dc60bdf
• https://git.kernel.org/stable/c/3104bddc666ff64b90491868bbc4c7ebdd90aedf
• https://git.kernel.org/stable/c/05095271a4fb0f6497121a057f9a2edf386d5d96
• https://git.kernel.org/stable/c/fd70e9f1d85f5323096ad313ba73f5fe3d15ea41

• rcu-tasks: Fix access non-existent percpu rtpcp variable in rcu_tasks_need_gpcb() · Affected-version evidence changed · 30 Oct 2026