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Commit f735295b authored by Markus Armbruster's avatar Markus Armbruster Committed by Linus Torvalds
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printk: don't read beyond string arguments' terminating zero 



Fix update_console_cmdline() not to to read beyond the terminating zero of its
name argument.

Signed-off-by: default avatarMarkus Armbruster <armbru@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f7511d5f

kernel/printk.c

+1 −1
Original line number Diff line number Diff line
@@ -921,7 +921,7 @@ int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, cha 
		if (strcmp(console_cmdline[i].name, name) == 0 &&

			  console_cmdline[i].index == idx) {

				c = &console_cmdline[i];

				memcpy(c->name, name_new, sizeof(c->name));

				strlcpy(c->name, name_new, sizeof(c->name));

				c->name[sizeof(c->name) - 1] = 0;

				c->options = options;

				c->index = idx_new;