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authorMichael S. Tsirkin <mst@redhat.com>2014-08-17 11:45:17 +0200
committerLuiz Capitulino <lcapitulino@redhat.com>2014-08-18 14:39:10 -0400
commitb3dd1b8c295636e64ceb14cdc4db6420d7319e38 (patch)
treee8455dfc57b74258a99088394bf2c6ba9a57ed40 /include/monitor
parent2928207ac1bb2751a1554ea0f9a9641179f51488 (diff)
downloadqemu-b3dd1b8c295636e64ceb14cdc4db6420d7319e38.tar.gz
monitor: fix use after free
The function monitor_fdset_dup_fd_find_remove() references member of 'mon_fdset' which - when remove flag is set - may be freed in function monitor_fdset_cleanup(). remove is set by monitor_fdset_dup_fd_remove which in practice does not need the returned value, so make it void, and return -1 from monitor_fdset_dup_fd_find_remove. Reported-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'include/monitor')
-rw-r--r--include/monitor/monitor.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
index 3d6929d6cd..78a5fc8197 100644
--- a/include/monitor/monitor.h
+++ b/include/monitor/monitor.h
@@ -64,7 +64,7 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
Error **errp);
int monitor_fdset_get_fd(int64_t fdset_id, int flags);
int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd);
-int monitor_fdset_dup_fd_remove(int dup_fd);
+void monitor_fdset_dup_fd_remove(int dup_fd);
int monitor_fdset_dup_fd_find(int dup_fd);
#endif /* !MONITOR_H */