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l2tp_session_create() relies on its caller for checking for duplicate sessions. This is racy since a session can be concurrently inserted after the caller's verification. Fix this by letting l2tp_session_create() verify sessions uniqueness upon insertion. Callers need to be adapted to check for l2tp_session_create()'s return code instead of calling l2tp_session_find(). pppol2tp_connect() is a bit special because it has to work on existing sessions (if they're not connected) or to create a new session if none is found. When acting on a preexisting session, a reference must be held or it could go away on us. So we have to use l2tp_session_get() instead of l2tp_session_find() and drop the reference before exiting. Fixes: |
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.. | ||
Kconfig | ||
l2tp_core.c | ||
l2tp_core.h | ||
l2tp_debugfs.c | ||
l2tp_eth.c | ||
l2tp_ip6.c | ||
l2tp_ip.c | ||
l2tp_netlink.c | ||
l2tp_ppp.c | ||
Makefile |