Re: [PATCH] multipath-tools: fix incorrect length for strncmp in uevent.c

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On Tue, 2017-09-05 at 11:54 +0800, Guan Junxiong wrote:
> Cc: Martin Wilck <mwilck@xxxxxxxx>
> Signed-off-by: Junxiong Guan <guanjunxiong@xxxxxxxxxx>
> ---
>  libmultipath/uevent.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/libmultipath/uevent.c b/libmultipath/uevent.c
> index eb44da56..a98633e7 100644
> --- a/libmultipath/uevent.c
> +++ b/libmultipath/uevent.c
> @@ -885,7 +885,7 @@ int uevent_get_disk_ro(struct uevent *uev)
>  	int i, ro = -1;
>  
>  	for (i = 0; uev->envp[i] != NULL; i++) {
> -		if (!strncmp(uev->envp[i], "DISK_RO", 6) &&
> strlen(uev->envp[i]) > 7) {
> +		if (!strncmp(uev->envp[i], "DISK_RO", 7) &&
> strlen(uev->envp[i]) > 8) {
>  			p = uev->envp[i] + 8;
>  			ro = strtoul(p, &q, 10);
>  			if (p == q) {
> @@ -904,8 +904,8 @@ char *uevent_get_dm_name(struct uevent *uev)
>  	int i;
>  
>  	for (i = 0; uev->envp[i] != NULL; i++) {
> -		if (!strncmp(uev->envp[i], "DM_NAME", 6) &&
> -		    strlen(uev->envp[i]) > 7) {
> +		if (!strncmp(uev->envp[i], "DM_NAME", 7) &&
> +		    strlen(uev->envp[i]) > 8) {
>  			p = MALLOC(strlen(uev->envp[i] + 8) + 1);
>  			strcpy(p, uev->envp[i] + 8);
>  			break;

Reviewed-by: Martin Wilck <mwilck@xxxxxxxx>

-- 
Dr. Martin Wilck <mwilck@xxxxxxxx>, Tel. +49 (0)911 74053 2107
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)

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