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| author | Jeremy Harris <jgh146exb@wizmail.org> | 2018-04-24 13:07:53 +0100 |
|---|---|---|
| committer | Jeremy Harris <jgh146exb@wizmail.org> | 2018-04-24 13:07:53 +0100 |
| commit | ef262e3170d26e4203fbf259180a34b1c0228a32 (patch) | |
| tree | f83a3e2c3a3dbb803472f0c2f608964ada524620 | |
| parent | 0d7bb78a322846918f2190c525adacb0cddeeb5b (diff) | |
ARC: limit verify chain to 50-deep
| -rw-r--r-- | src/src/arc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/src/arc.c b/src/src/arc.c index ddf73959c..53d06de67 100644 --- a/src/src/arc.c +++ b/src/src/arc.c @@ -382,7 +382,7 @@ static uschar * arc_insert_hdr(arc_ctx * ctx, header_line * h, unsigned off, unsigned hoff, BOOL instance_only) { -int i; +unsigned i; arc_set * as; arc_line * al = store_get(sizeof(arc_line)), ** alp; uschar * e; @@ -395,6 +395,7 @@ if ((e = arc_parse_line(al, h, off, instance_only))) return US"line parse"; } if (!(i = arc_instance_from_hdr(al))) return US"instance find"; +if (i > 50) return US"overlarge instance number"; if (!(as = arc_find_set(ctx, i))) return US"set find"; if (*(alp = (arc_line **)(US as + hoff))) return US"dup hdr"; |