Commit c3817ffb authored by Jann Horn's avatar Jann Horn Committed by Greg Kroah-Hartman

floppy: fix usercopy direction

commit 52f6f9d7 upstream.

As sparse points out, these two copy_from_user() should actually be
copy_to_user().

Fixes: 229b53c9 ("take floppy compat ioctls to sodding floppy.c")
Cc: stable@vger.kernel.org
Acked-by: default avatarAlexander Popov <alex.popov@linux.com>
Reviewed-by: default avatarMukesh Ojha <mojha@codeaurora.org>
Signed-off-by: default avatarJann Horn <jannh@google.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9c13e770
......@@ -3791,7 +3791,7 @@ static int compat_getdrvprm(int drive,
v.native_format = UDP->native_format;
mutex_unlock(&floppy_mutex);
if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
return -EFAULT;
return 0;
}
......@@ -3827,7 +3827,7 @@ static int compat_getdrvstat(int drive, bool poll,
v.bufblocks = UDRS->bufblocks;
mutex_unlock(&floppy_mutex);
if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
return -EFAULT;
return 0;
Eintr:
......
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