From: Richard Henderson <richard.henderson@linaro.org>
To: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Cc: "Alex Bennée" <alex.bennee@linaro.org>
Subject: Re: [PATCH 4/4] semihosting: Fix handling of buffer in TARGET_SYS_TMPNAM
Date: Sun, 24 Jul 2022 14:55:30 -0700 [thread overview]
Message-ID: <02731234-fe4c-508e-0cfc-c41918e2845d@linaro.org> (raw)
In-Reply-To: <20220719121110.225657-5-peter.maydell@linaro.org>
On 7/19/22 17:41, Peter Maydell wrote:
> The TARGET_SYS_TMPNAM implementation has two bugs spotted by
> Coverity:
> * confusion about whether 'len' has the length of the string
> including or excluding the terminating NUL means we
> lock_user() len bytes of memory but memcpy() len + 1 bytes
> * In the error-exit cases we forget to free() the buffer
> that asprintf() returned to us
>
> Resolves: Coverity CID 1490285, 1490289
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
> semihosting/arm-compat-semi.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2022-07-24 21:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-19 12:11 [PATCH 0/4] semihosting: fix various coverity issues Peter Maydell
2022-07-19 12:11 ` [PATCH 1/4] semihosting: Don't return negative values on qemu_semihosting_console_write() failure Peter Maydell
2022-07-24 16:28 ` Richard Henderson
2022-07-19 12:11 ` [PATCH 2/4] semihosting: Don't copy buffer after console_write() Peter Maydell
2022-07-24 16:30 ` Richard Henderson
2022-07-19 12:11 ` [PATCH 3/4] semihosting: Check for errors on SET_ARG() Peter Maydell
2022-07-24 16:35 ` Richard Henderson
2022-07-19 12:11 ` [PATCH 4/4] semihosting: Fix handling of buffer in TARGET_SYS_TMPNAM Peter Maydell
2022-07-24 21:55 ` Richard Henderson [this message]
2022-07-25 12:28 ` [PATCH 0/4] semihosting: fix various coverity issues Alex Bennée
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