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UBUNTU: SAUCE: (no-up) rds_ib_send() -- prevent local pings triggering BUG_ON()

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Pining localhost on an infiniband connection can trigger a BUG_ON()
and cause a denial of service.

Fix identified by comparison of the RHEL source rpms.

CVE-2012-2372
BugLink: http://bugs.launchpad.net/bugs/1016299
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
This commit is contained in:
Andy Whitcroft
2012-07-26 11:25:52 +01:00
committed by Paolo Pisati
parent 47868c5c71
commit 1208220b5f
1 changed files with 1 additions and 1 deletions
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net/rds/ib_send.c
+1 -1
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@@ -503,7 +503,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
int flow_controlled = 0;
int nr_sig = 0;
BUG_ON(off % RDS_FRAG_SIZE);
BUG_ON(!conn->c_loopback && off % RDS_FRAG_SIZE);
BUG_ON(hdr_off != 0 && hdr_off != sizeof(struct rds_header));
/* Do not send cong updates to IB loopback */