diff options
Diffstat (limited to 'net/compat.c')
| -rw-r--r-- | net/compat.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/compat.c b/net/compat.c index d74d82155d78..377e560ab5c9 100644 --- a/net/compat.c +++ b/net/compat.c @@ -254,6 +254,8 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr))) return -EFAULT; cmlen = CMSG_COMPAT_SPACE(len); + if (kmsg->msg_controllen < cmlen) + cmlen = kmsg->msg_controllen; kmsg->msg_control += cmlen; kmsg->msg_controllen -= cmlen; return 0; |