bpf: Add preempt_disable to protect get_perf_callchain #6012
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As Alexei suggested, the return value from get_perf_callchain() may be reused if another task preempts and requests the stack after BPF program switched to migrate disable. Reported-by: Alexei Starovoitov <[email protected]> Signed-off-by: Tao Chen <[email protected]>
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=1004776 expired. Closing PR. |
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Pull request for series with
subject: bpf: Add preempt_disable to protect get_perf_callchain
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=1004776