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Merge tag 's390-5.9-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

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Pull s390 fix from Vasily Gorbik:
 "Fix truncated ZCRYPT_PERDEV_REQCNT ioctl result. Copy entire reqcnt
  list"

* tag 's390-5.9-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/zcrypt: Fix ZCRYPT_PERDEV_REQCNT ioctl
This commit is contained in:
Linus Torvalds
2020-09-26 11:01:18 -07:00
parent 8fb1e91033 f7e80983f0
commit eeddbe6841
1 changed files with 2 additions and 1 deletions
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3
drivers/s390/crypto/zcrypt_api.c
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@@ -1449,7 +1449,8 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
if (!reqcnt)
return -ENOMEM;
zcrypt_perdev_reqcnt(reqcnt, AP_DEVICES);
if (copy_to_user((int __user *) arg, reqcnt, sizeof(reqcnt)))
if (copy_to_user((int __user *) arg, reqcnt,
sizeof(u32) * AP_DEVICES))
rc = -EFAULT;
kfree(reqcnt);
return rc;