diff options
| -rw-r--r-- | arch/parisc/kernel/sys_parisc32.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c index ce3245f87fdd..a8ebac4fadec 100644 --- a/arch/parisc/kernel/sys_parisc32.c +++ b/arch/parisc/kernel/sys_parisc32.c @@ -350,6 +350,10 @@ sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count) struct getdents32_callback buf; int error; + error = -EFAULT; + if (!access_ok(VERIFY_WRITE, dirent, count)) + goto out; + error = -EBADF; file = fget(fd); if (!file) @@ -366,8 +370,10 @@ sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count) error = buf.error; lastdirent = buf.previous; if (lastdirent) { - put_user(file->f_pos, &lastdirent->d_off); - error = count - buf.count; + if (put_user(file->f_pos, &lastdirent->d_off)) + error = -EFAULT; + else + error = count - buf.count; } out_putf: |