Thread (1 message) 1 message, 1 author, 2020-06-18
STALE2235d

[PATCH AUTOSEL 5.4 213/266] rxrpc: Adjust /proc/net/rxrpc/calls to display call->debug_id not user_ID

From: Sasha Levin <sashal@kernel.org>
Date: 2020-06-18 02:13:07
Also in: lkml, stable
Subsystem: networking [general], rxrpc sockets (af_rxrpc), the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Howells, Marc Dionne, Linus Torvalds

From: David Howells <dhowells@redhat.com>

[ Upstream commit 32f71aa497cfb23d37149c2ef16ad71fce2e45e2 ]

The user ID value isn't actually much use - and leaks a kernel pointer or a
userspace value - so replace it with the call debug ID, which appears in trace
points.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rxrpc/proc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c
index 8b179e3c802a..543afd9bd664 100644
--- a/net/rxrpc/proc.c
+++ b/net/rxrpc/proc.c
@@ -68,7 +68,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
 			 "Proto Local                                          "
 			 " Remote                                         "
 			 " SvID ConnID   CallID   End Use State    Abort   "
-			 " UserID           TxSeq    TW RxSeq    RW RxSerial RxTimo\n");
+			 " DebugId  TxSeq    TW RxSeq    RW RxSerial RxTimo\n");
 		return 0;
 	}
 
@@ -100,7 +100,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
 	rx_hard_ack = READ_ONCE(call->rx_hard_ack);
 	seq_printf(seq,
 		   "UDP   %-47.47s %-47.47s %4x %08x %08x %s %3u"
-		   " %-8.8s %08x %lx %08x %02x %08x %02x %08x %06lx\n",
+		   " %-8.8s %08x %08x %08x %02x %08x %02x %08x %06lx\n",
 		   lbuff,
 		   rbuff,
 		   call->service_id,
@@ -110,7 +110,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
 		   atomic_read(&call->usage),
 		   rxrpc_call_states[call->state],
 		   call->abort_code,
-		   call->user_call_ID,
+		   call->debug_id,
 		   tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack,
 		   rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack,
 		   call->rx_serial,
-- 
2.25.1
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