[git commit] bootchartd: prevent premature stop by device mapper

[Denys Vlasenko]

commit: https://git.busybox.net/busybox/commit/?id=9e2e0ff4ba7f4327ff35e353faba5bf234a70672
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master

Kernel thread kdmflush was recognized as display manager kdm,
check for string length.

Signed-off-by: Uwe Geuder <busybox2017-ugeuder at snkmail.com>
Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 init/bootchartd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/init/bootchartd.c b/init/bootchartd.c
index ecbcab8..1b70067 100644
--- a/init/bootchartd.c
+++ b/init/bootchartd.c
@@ -171,7 +171,9 @@ static int dump_procs(FILE *fp, int look_for_login_process)
 			p++;
 			strchrnul(p, ')')[0] = '\0';
 			/* Is it gdm, kdm or a getty? */
-			if (((p[0] == 'g' || p[0] == 'k' || p[0] == 'x') && p[1] == 'd' && p[2] == 'm')
+			if (((p[0] == 'g' || p[0] == 'k' || p[0] == 'x')
+			     && p[1] == 'd' && p[2] == 'm' && p[3] == '\0'
+			    )
 			 || strstr(p, "getty")
 			) {
 				found_login_process = 1;