Merge tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu into staging

 * Update security triage contact address
 * Check and honour failures to the blocking flag on FDs
 * Don't touch blocking flags on FDs received during migration

# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCAAdFiEE2vOm/bJrYpEtDo4/vobrtBUQT98FAmjNQuAACgkQvobrtBUQ
# T99xaBAAr6zQPii1tjzuzLovF6MIqtldXnmVO/yjcl5NgLWonIRDt2JsxnRxi3es
# 9uNDed5+ePNXmUAYd46k81gBEjBWbv465kt5FHAZZV6BRw/PPzkoh+jzGc8NVir8
# 3GZJ2kPr51PxGEl8md2vRthg4bMuhlS5ogCEqAMDYT4f6AVemfnNQ5NttGX353T2
# etxoMhEeMtTBKjMoTBv+SVhhO4nKwZ+6CFhvuGON423EfrGlkNTXyprKTdzpr4i0
# 4KDQLxxoANlmg/1W0PxfrLiBCmGpHweMR44Piv715VYa2YNPRq0G6EC6AFGbHZ51
# N+mKmWNE0CS5rP1TEacSCX4q6If5VxjSLLj+og8LmpIlJ6tiqdrisSqA6bzCJ1f/
# lMsfUsKoMqPhqat9ZGUkYu8REgKP+O+CSGJNftYTsEEY0oKZrAW4fsoN3E9qpfcG
# Xy6eSu0TTGDWE6CEe0vkHiQwlVHMtRcWMSPwlsvrgt2TO6k97reT3AoIBK2VfygC
# WzMv0P0nBvHFKeIbqmFOk3BEI5+JECgxVRc1WXWbSFLW0PBY/xd7g6ow8uaQsd9e
# pzMA1Pwh2EuM4DTlOy+m9zBOhm9YP9An188NLldOne3TFKFYe5QO1DQpvvEGvIGB
# +4XpmyOj3g2ycelZZ5XsDJk0LumCCOcbSPSiAvHZyWwLo24EABE=
# =rrMd
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 19 Sep 2025 04:47:44 AM PDT
# gpg:                using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [unknown]
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E  8E3F BE86 EBB4 1510 4FDF

* tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu:
  util/vhost-user-server: vu_message_read(): improve error handling
  chardev: close an fd on failure path
  chardev: qemu_chr_open_fd(): add errp
  treewide: use qemu_set_blocking instead of g_unix_set_fd_nonblocking
  util: drop qemu_socket_set_block()
  io/channel-socket: rework qio_channel_socket_copy_fds()
  util: drop qemu_socket_try_set_nonblock()
  util: drop qemu_socket_set_nonblock()
  migration: qemu_file_set_blocking(): add errp parameter
  treewide: handle result of qio_channel_set_blocking()
  util: add qemu_set_blocking() function
  char-socket: tcp_chr_recv(): add comment
  char-socket: tcp_chr_recv(): drop extra _set_(block,cloexec)
  io/channel: document how qio_channel_readv_full() handles fds
  migration/qemu-file: don't make incoming fds blocking again
  MAINTAINERS: list qemu-security@nongnu.org as security contact

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 16 insertions, 12 deletions

diff --git a/net/dgram.c b/net/dgram.c
index 48f653bceb..baa126d514 100644
--- a/net/dgram.c
+++ b/net/dgram.c
@@ -226,7 +226,10 @@ static int net_dgram_mcast_create(struct sockaddr_in *mcastaddr,
         }
     }
 
-    qemu_socket_set_nonblock(fd);
+    if (!qemu_set_blocking(fd, false, errp)) {
+        goto fail;
+    }
+
     return fd;
 fail:
     if (fd >= 0) {
@@ -284,7 +287,7 @@ static int net_dgram_mcast_init(NetClientState *peer,
                                 Error **errp)
 {
     NetDgramState *s;
-    int fd, ret;
+    int fd;
     struct sockaddr_in *saddr;
 
     if (remote->type != SOCKET_ADDRESS_TYPE_INET) {
@@ -332,11 +335,8 @@ static int net_dgram_mcast_init(NetClientState *peer,
                 g_free(saddr);
                 return -1;
             }
-            ret = qemu_socket_try_set_nonblock(fd);
-            if (ret < 0) {
+            if (!qemu_set_blocking(fd, false, errp)) {
                 g_free(saddr);
-                error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d",
-                                 name, fd);
                 return -1;
             }
 
@@ -504,7 +504,11 @@ int net_init_dgram(const Netdev *netdev, const char *name,
             close(fd);
             return -1;
         }
-        qemu_socket_set_nonblock(fd);
+
+        if (!qemu_set_blocking(fd, false, errp)) {
+            close(fd);
+            return -1;
+        }
 
         dest_len = sizeof(raddr_in);
         dest_addr = g_malloc(dest_len);
@@ -551,7 +555,10 @@ int net_init_dgram(const Netdev *netdev, const char *name,
             close(fd);
             return -1;
         }
-        qemu_socket_set_nonblock(fd);
+        if (!qemu_set_blocking(fd, false, errp)) {
+            close(fd);
+            return -1;
+        }
 
         dest_len = sizeof(raddr_un);
         dest_addr = g_malloc(dest_len);
@@ -562,10 +569,7 @@ int net_init_dgram(const Netdev *netdev, const char *name,
         if (fd == -1) {
             return -1;
         }
-        ret = qemu_socket_try_set_nonblock(fd);
-        if (ret < 0) {
-            error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d",
-                             name, fd);
+        if (!qemu_set_blocking(fd, false, errp)) {
             return -1;
         }
         dest_addr = NULL;