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Message-ID: <20210630082724.50838-8-wuguanghao3@huawei.com> Date: Wed, 30 Jun 2021 16:27:19 +0800 From: wuguanghao <wuguanghao3@...wei.com> To: <linux-ext4@...r.kernel.org>, <artem.blagodarenko@...il.com> CC: <liuzhiqiang26@...wei.com>, <linfeilong@...wei.com>, <wuguanghao3@...wei.com> Subject: [PATCH v2 07/12] argv_parse: check return value of malloc in argv_parse() From: Zhiqiang Liu <liuzhiqiang26@...wei.com> In argv_parse(), return value of malloc should be checked whether it is NULL, otherwise, it may cause a segfault error. Signed-off-by: Zhiqiang Liu <liuzhiqiang26@...wei.com> Signed-off-by: Wu Guanghao <wuguanghao3@...wei.com> --- lib/support/argv_parse.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/support/argv_parse.c b/lib/support/argv_parse.c index d22f6344..1f50f9e5 100644 --- a/lib/support/argv_parse.c +++ b/lib/support/argv_parse.c @@ -116,6 +116,8 @@ int argv_parse(char *in_buf, int *ret_argc, char ***ret_argv) if (argv == 0) { argv = malloc(sizeof(char *)); free(buf); + if (!argv) + return -1; } argv[argc] = 0; if (ret_argc) -- 2.19.1
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