fd-trans: Fix race condition on reallocation of the translation table.
The mapping from file-descriptors to translator functions is not guarded
on realloc which may cause invalid function pointers to be read from a
previously deallocated mapping.
Signed-off-by: Owen Anderson <oanderso@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210701221255.107976-1-oanderso@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/linux-user/fd-trans.c b/linux-user/fd-trans.c
index 23adaca..86b6f48 100644
--- a/linux-user/fd-trans.c
+++ b/linux-user/fd-trans.c
@@ -267,6 +267,7 @@
};
TargetFdTrans **target_fd_trans;
+QemuMutex target_fd_trans_lock;
unsigned int target_fd_max;
static void tswap_nlmsghdr(struct nlmsghdr *nlh)