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authorOndrej Zajicek <santiago@crfreenet.org>2022-06-05 04:03:43 +0200
committerOndrej Zajicek <santiago@crfreenet.org>2022-06-05 04:11:32 +0200
commitad686c55c3fad13f39e44ee5732c38296caff782 (patch)
tree70810a388efe16d45e73c85cb506f7897097b33b /lib/buffer_test.c
parentf39e9aa20363eccc38289958f23c789d037c269b (diff)
Babel: Do not try to remove multicast seqno request objects from neighbour list
The Babel seqno request code keeps track of which seqno requests are outstanding for a neighbour by putting them onto a per-neighbour list. When reusing a seqno request, it will try to remove this node, but if the seqno request in question was a multicast request with no neighbour attached this will result in a crash because it tries to remove a list node that wasn't added to any list. Fix this by making the list remove conditional. Also fix neighbor removal which were changing seqno requests to multicast ones instead of removing them. Fixes: ebd5751cdeb4 ("Babel: Seqno requests are properly decoupled from neighbors when the underlying interface disappears"). Based on the patch from Toke Høiland-Jørgensen <toke@toke.dk>, bug reported by Stefan Haller <stefan.haller@stha.de>, thanks.
Diffstat (limited to 'lib/buffer_test.c')
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