Linux kernel bug fix: perf: Protect perf_guest_cbs with RCU
Subsystem: arch (arch/arm64/kernel/perf_callchain.c)
Bug type: use-after-free, severity: high
Keywords: use after free;null pointer
Files changed: arch/arm/kernel/perf_callchain.c;arch/arm64/kernel/perf_callchain.c;arch/csky/kernel/perf_callchain.c;arch/nds32/kernel/perf_event_cpu.c;arch/riscv/kernel/perf_callchain.c;arch/x86/events/core.c;arch/x86/events/intel/core.c;include/linux/perf_event.h;kernel/events/core.c
Introduced by Zhang, Yanmin on 2010-04-19 12:35:33 +0300; fixed by Sean Christopherson on 2021-11-17 14:49:06 +0100 (lifetime: 4230 days)