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Merge branch 'maint-0.3.4' into maint-0.3.5

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This commit is contained in:
Nick Mathewson 2019-02-21 10:08:14 -05:00
commit 4a8a1f76ea
2 changed files with 6 additions and 1 deletions
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5
changes/ticket29168 Normal file
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@ -0,0 +1,5 @@
o Major bugfixes (cell scheduler, KIST):
- Make KIST to always take into account the outbuf length when computing
what we can actually put in the outbuf. This could lead to the outbuf
being filled up and thus a possible memory DoS vector. TROVE-2019-001.
Fixes bug 29168; bugfix on 0.3.2.1-alpha.

2
src/core/or/scheduler_kist.c
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@ -286,7 +286,7 @@ update_socket_info_impl, (socket_table_ent_t *ent))
extra_space =
clamp_double_to_int64(
(ent->cwnd * (int64_t)ent->mss) * sock_buf_size_factor) -
ent->notsent;
ent->notsent - (int64_t)channel_outbuf_length((channel_t *) ent->chan);
if ((tcp_space + extra_space) < 0) {
/* This means that the "notsent" queue is just too big so we shouldn't put
* more in the kernel for now. */