Al Viro wrote: > On Sat, Jan 21, 2012 at 08:02:37PM +0100, Szymon Janc wrote: >> --- a/fs/binfmt_misc.c >> +++ b/fs/binfmt_misc.c >> @@ -418,7 +418,7 @@ static int parse_command(const char __user *buffer, size_t count) >> return 0; >> if (count > 3) >> return -EINVAL; >> - if (copy_from_user(s, buffer, count)) >> + if (copy_from_user(s, buffer, min(count, sizeof(s)))) > > File a report in gcc bugzilla. Note that > * count is size_t and thus unsigned > * sizeof(s) is 4 > IOW, min(count, sizeof(s)) should do no better (or worse) than count here. > If gcc is unable to prove that, it really needs to be fixed... Looks like this is <http://gcc.gnu.org/PR52798>. Thanks, Jonathan -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
