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

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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
commit 3bad2f1c67
12 changed files with 220 additions and 271 deletions
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20
drivers/scsi/lpfc/lpfc_debugfs.c
View file

@ -1949,10 +1949,6 @@ lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf,
if (nbytes > 64)
nbytes = 64;
/* Protect copy from user */
if (!access_ok(VERIFY_READ, buf, nbytes))
return -EFAULT;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
@ -2037,10 +2033,6 @@ lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf,
if (nbytes > 64)
nbytes = 64;
/* Protect copy from user */
if (!access_ok(VERIFY_READ, buf, nbytes))
return -EFAULT;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
@ -2169,10 +2161,6 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
if (nbytes > 64)
nbytes = 64;
/* Protect copy from user */
if (!access_ok(VERIFY_READ, buf, nbytes))
return -EFAULT;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
@ -2280,10 +2268,6 @@ lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf,
if (nbytes > 64)
nbytes = 64;
/* Protect copy from user */
if (!access_ok(VERIFY_READ, buf, nbytes))
return -EFAULT;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
@ -2354,10 +2338,6 @@ static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
int i;
size_t bsize;
/* Protect copy from user */
if (!access_ok(VERIFY_READ, buf, nbytes))
return -EFAULT;
memset(mybuf, 0, sizeof(mybuf));
memset(idiag_cmd, 0, sizeof(*idiag_cmd));
bsize = min(nbytes, (sizeof(mybuf)-1));