Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:
On Tue, 2 Apr 2024 12:46:21 +0200 you wrote:
> syzkaller started using corpuses where a BPF tracing program deletes
> elements from a sockmap/sockhash map. Because BPF tracing programs can be
> invoked from any interrupt context, locks taken during a map_delete_elem
> operation must be hardirq-safe. Otherwise a deadlock due to lock inversion
> is possible, as reported by lockdep:
>
> CPU0 CPU1
>
> [...]
Here is the summary with links:
- [bpf] bpf, sockmap: Prevent lock inversion deadlock in map delete elem
https://git.kernel.org/bpf/bpf/c/ff9105993240
You are awesome, thank you!
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