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Staging driver tree fix for 3.14-rc6

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Here is a single staging driver fix for your tree.
 
 It resolves an issue with arbritary writes to memory if a specific
 driver is loaded.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver tree fix from Greg KH:
 "Here is a single staging driver fix for your tree.

  It resolves an issue with arbritary writes to memory if a specific
  driver is loaded"

* tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/cxt1e1/linux.c: Correct arbitrary memory write in c4_ioctl()
This commit is contained in:
Linus Torvalds 2014-03-09 18:58:27 -07:00
parent 979e0d7465 084b6e7765
commit a491ce72f8
1 changed files with 2 additions and 0 deletions
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2
drivers/staging/cxt1e1/linux.c
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@ -866,6 +866,8 @@ c4_ioctl (struct net_device *ndev, struct ifreq *ifr, int cmd)
_IOC_SIZE (iocmd));
#endif
iolen = _IOC_SIZE (iocmd);
if (iolen > sizeof(arg))
return -EFAULT;
data = ifr->ifr_data + sizeof (iocmd);
if (copy_from_user (&arg, data, iolen))
return -EFAULT;