diff options
| -rw-r--r-- | linux-user/syscall.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index e4ffdec0d8..544f5b662f 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -2127,6 +2127,9 @@ static abi_long do_setsockopt(int sockfd, int level, int optname, return -TARGET_EINVAL; ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1); + if (!ip_mreq_source) { + return -TARGET_EFAULT; + } ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen)); unlock_user (ip_mreq_source, optval_addr, 0); break; |