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-rw-r--r--src/core/manager.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/core/manager.c b/src/core/manager.c
index ab65d630a1..66b8904e4e 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -1720,7 +1720,7 @@ static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t
return 0;
}
- n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);
+ n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC|MSG_TRUNC);
if (n < 0) {
if (IN_SET(errno, EAGAIN, EINTR))
return 0; /* Spurious wakeup, try again */
@@ -1761,7 +1761,7 @@ static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t
return 0;
}
- if ((size_t) n >= sizeof(buf)) {
+ if ((size_t) n >= sizeof(buf) || (msghdr.msg_flags & MSG_TRUNC)) {
log_warning("Received notify message exceeded maximum size. Ignoring.");
return 0;
}