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Merge branch 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Telusuri Sumber 
Pull misc user access cleanups from Al Viro:
 "The first pile is assorted getting rid of cargo-culted access_ok(),
  cargo-culted set_fs() and field-by-field copyouts.

  The same description applies to a lot of stuff in other branches -
  this is just the stuff that didn't fit into a more specific topical
  branch"

* 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  Switch flock copyin/copyout primitives to copy_{from,to}_user()
  fs/fcntl: return -ESRCH in f_setown when pid/pgid can't be found
  fs/fcntl: f_setown, avoid undefined behaviour
  fs/fcntl: f_setown, allow returning error
  lpfc debugfs: get rid of pointless access_ok()
  adb: get rid of pointless access_ok()
  isdn: get rid of pointless access_ok()
  compat statfs: switch to copy_to_user()
  fs/locks: don't mess with the address limit in compat_fcntl64
  nfsd_readlink(): switch to vfs_get_link()
  drbd: ->sendpage() never needed set_fs()
  fs/locks: pass kernel struct flock to fcntl_getlk/setlk
  fs: locks: Fix some troubles at kernel-doc comments
This commit is contained in:
Linus Torvalds
2017-07-05 13:13:32 -07:00
orang tua b4b8cbf679 8c6657cb50
melakukan 3bad2f1c67
12 mengubah file dengan 224 tambahan dan 275 penghapusan
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18
drivers/isdn/i4l/isdn_common.c
Melihat File

@@ -1304,9 +1304,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
if (arg) {
ulong __user *p = argp;
int i;
if (!access_ok(VERIFY_WRITE, p,
sizeof(ulong) * ISDN_MAX_CHANNELS * 2))
return -EFAULT;
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
put_user(dev->ibytes[i], p++);
put_user(dev->obytes[i], p++);
@@ -1540,11 +1537,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
char __user *p = argp;
int i;
if (!access_ok(VERIFY_WRITE, argp,
(ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN)
* ISDN_MAX_CHANNELS))
return -EFAULT;
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
if (copy_to_user(p, dev->mdm.info[i].emu.profile,
ISDN_MODEM_NUMREG))
@@ -1567,11 +1559,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
char __user *p = argp;
int i;
if (!access_ok(VERIFY_READ, argp,
(ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN)
* ISDN_MAX_CHANNELS))
return -EFAULT;
for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
if (copy_from_user(dev->mdm.info[i].emu.profile, p,
ISDN_MODEM_NUMREG))
@@ -1617,8 +1604,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
int j = 0;
while (1) {
if (!access_ok(VERIFY_READ, p, 1))
return -EFAULT;
get_user(bname[j], p++);
switch (bname[j]) {
case '\0':
@@ -1685,9 +1670,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
drvidx = 0;
if (drvidx == -1)
return -ENODEV;
if (!access_ok(VERIFY_WRITE, argp,
sizeof(isdn_ioctl_struct)))
return -EFAULT;
c.driver = drvidx;
c.command = ISDN_CMD_IOCTL;
c.arg = cmd;

6
drivers/isdn/i4l/isdn_ppp.c
Melihat File

@@ -795,9 +795,6 @@ isdn_ppp_read(int min, struct file *file, char __user *buf, int count)
if (!(is->state & IPPP_OPEN))
return 0;
if (!access_ok(VERIFY_WRITE, buf, count))
return -EFAULT;
spin_lock_irqsave(&is->buflock, flags);
b = is->first->next;
save_buf = b->buf;
@@ -2014,9 +2011,6 @@ isdn_ppp_dev_ioctl_stats(int slot, struct ifreq *ifr, struct net_device *dev)
struct ppp_stats t;
isdn_net_local *lp = netdev_priv(dev);
if (!access_ok(VERIFY_WRITE, res, sizeof(struct ppp_stats)))
return -EFAULT;
/* build a temporary stat struct and copy it to user space */
memset(&t, 0, sizeof(struct ppp_stats));