Commit 8a00be1c authored by Shan Wei's avatar Shan Wei Committed by David S. Miller
Browse files

sctp: check parameter value of length in ERROR chunk

When an endpoint receives ERROR that parameter value is invalid,
send an ABORT to peer with a Protocol Violation error code.

Signed-off-by: default avatarShan Wei <>
Signed-off-by: default avatarVlad Yasevich <>
Signed-off-by: default avatarWei Yongjun <>
Signed-off-by: default avatarDavid S. Miller <>
parent 88255375
......@@ -3204,6 +3204,7 @@ sctp_disposition_t sctp_sf_operr_notify(const struct sctp_endpoint *ep,
sctp_cmd_seq_t *commands)
struct sctp_chunk *chunk = arg;
sctp_errhdr_t *err;
if (!sctp_vtag_verify(chunk, asoc))
return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
......@@ -3212,6 +3213,10 @@ sctp_disposition_t sctp_sf_operr_notify(const struct sctp_endpoint *ep,
if (!sctp_chunk_length_valid(chunk, sizeof(sctp_operr_chunk_t)))
return sctp_sf_violation_chunklen(ep, asoc, type, arg,
sctp_walk_errors(err, chunk->chunk_hdr);
if ((void *)err != (void *)chunk->chunk_end)
return sctp_sf_violation_paramlen(ep, asoc, type, arg,
(void *)err, commands);
sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_OPERR,
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