Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk&gt; --- fs/proc/base.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) b464a96dd7aae91ac0399d93f7cb2fbb6dfc3dfe diff --git a/fs/proc/base.c b/fs/proc/base.c index 6cc77dc..6afff72 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1019,8 +1019,8 @@ static ssize_t proc_loginuid_write(struc if (current != task) return -EPERM; - if (count > PAGE_SIZE) - count = PAGE_SIZE; + if (count >= PAGE_SIZE) + count = PAGE_SIZE - 1; if (*ppos != 0) { /* No partial writes. */ @@ -1033,6 +1033,7 @@ static ssize_t proc_loginuid_write(struc if (copy_from_user(page, buf, count)) goto out_free_page; + page[count] = '\0'; loginuid = simple_strtoul(page, &tmp, 10); if (tmp == page) { length = -EINVAL; -- 1.3.GIT