[Bug libc/1952] New: time() returns incorrect value when given bad address

["michael dot kerrisk at gmx dot net" <sourceware-bugzilla at sourceware dot org>]

When the program below is run on Linux/x86, the following output 
is produced:

After time():            t=-14, errno=0
After syscall(SYS_time): t=-1, errno=14

In the first line, the reported return value from time() should be 
-1, with errno set to EFAULT (14).  Instead, the call returns -14.

Could this be a configuration problem in 
sysdeps/unix/sysv/linux/i386/syscalls.list?

Cheers,

Michael

==========

#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <time.h>

#define VAL 1000

int main() {
    time_t t;

    t = time((time_t *)VAL);
    printf("After time():            t=%ld, errno=%d\n", (long) t, errno);
    t = syscall(SYS_time, (time_t *)VAL);
    printf("After syscall(SYS_time): t=%ld, errno=%d\n", (long) t, errno);
    return 0;
}

-- 
           Summary: time() returns incorrect value when given bad address
           Product: glibc
           Version: 2.3.5
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: michael dot kerrisk at gmx dot net
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=1952

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