From: Matus Kysel <mkysel@tachyum.com>
Date: Wed, 30 Sep 2020 15:16:16 +0000 (+0200)
Subject: linux-user: correct errno returned from accept4() syscall
X-Git-Tag: v5.2.0-rc0~25^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e554eb4bb56395b1e3b7042dc6974dc87de3f4d1;p=thirdparty%2Fqemu.git

linux-user: correct errno returned from accept4() syscall

accept4() returned wrong errno, that did not match current linux

Signed-off-by: Matus Kysel <mkysel@tachyum.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200930151616.3588165-1-mkysel@tachyum.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index f0df6aecef8..6fef8181e73 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3491,16 +3491,16 @@ static abi_long do_accept4(int fd, abi_ulong target_addr,
         return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
     }
 
-    /* linux returns EINVAL if addrlen pointer is invalid */
+    /* linux returns EFAULT if addrlen pointer is invalid */
     if (get_user_u32(addrlen, target_addrlen_addr))
-        return -TARGET_EINVAL;
+        return -TARGET_EFAULT;
 
     if ((int)addrlen < 0) {
         return -TARGET_EINVAL;
     }
 
     if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
-        return -TARGET_EINVAL;
+        return -TARGET_EFAULT;
 
     addr = alloca(addrlen);