[PATCH v3] riscv: Only consider swbp/ss handlers for correct privileged mode

patchwork-bot+linux-riscv at kernel.org patchwork-bot+linux-riscv at kernel.org
Thu Sep 21 03:50:23 PDT 2023


Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer at rivosinc.com>:

On Tue, 12 Sep 2023 08:56:19 +0200 you wrote:
> From: Björn Töpel <bjorn at rivosinc.com>
> 
> RISC-V software breakpoint trap handlers are used for {k,u}probes.
> 
> When trapping from kernelmode, only the kernelmode handlers should be
> considered. Vice versa, only usermode handlers for usermode
> traps. This is not the case on RISC-V, which can trigger a bug if a
> userspace process uses uprobes, and a WARN() is triggered from
> kernelmode (which is implemented via {c.,}ebreak).
> 
> [...]

Here is the summary with links:
  - [v3] riscv: Only consider swbp/ss handlers for correct privileged mode
    https://git.kernel.org/riscv/c/9f564b92cf6d

You are awesome, thank you!
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