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Date: Fri, 10 Jul 2026 09:38:25 -0600 (MDT)
From: Paul Walmsley <pjw@kernel.org>
To: Wang Yan <wangyan01@kylinos.cn>
cc: shuah@kernel.org, pjw@kernel.org, palmer@dabbelt.com, 
    aou@eecs.berkeley.edu, alex@ghiti.fr, geomatsi@gmail.com, 
    andybnac@gmail.com, andrew.jones@oss.qualcomm.com, 
    thecharlesjenkins@gmail.com, linux-kselftest@vger.kernel.org, 
    linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] selftests/riscv: ptrace: Fix memory leak of regset_data
 in vector tests
In-Reply-To: <20260710083437.489648-1-wangyan01@kylinos.cn>
Message-ID: <5ad27d5d-a396-341b-324d-ff2ca7bae26f@kernel.org>
References: <20260710083437.489648-1-wangyan01@kylinos.cn>
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On Fri, 10 Jul 2026, Wang Yan wrote:

> The regset_data buffer allocated with calloc() in the parent process
> of several vector ptrace tests is never freed before returning,
> causing memory leaks in:
> 
> - ptrace_v_not_enabled
> - ptrace_v_early_debug
> - ptrace_v_syscall_clobbering
> - v_csr_invalid/ptrace_v_invalid_values
> - v_csr_valid/ptrace_v_valid_values
> 
> Add free(regset_data) before kill(pid, SIGKILL) to release the
> allocated buffer.
> 
> Signed-off-by: Wang Yan <wangyan01@kylinos.cn>

Thanks, queued for v7.2-rc.


- Paul