lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date:   Wed, 14 Sep 2022 05:00:49 -0400
From:   Sasha Levin <>
Cc:     David Howells <>,
        Sasha Levin <>,,,,,,,
Subject: [PATCH AUTOSEL 5.19 08/22] rxrpc: Fix local destruction being repeated

From: David Howells <>

[ Upstream commit d3d863036d688313f8d566b87acd7d99daf82749 ]

If the local processor work item for the rxrpc local endpoint gets requeued
by an event (such as an incoming packet) between it getting scheduled for
destruction and the UDP socket being closed, the rxrpc_local_destroyer()
function can get run twice.  The second time it can hang because it can end
up waiting for cleanup events that will never happen.

Signed-off-by: David Howells <>
Signed-off-by: Sasha Levin <>
 net/rxrpc/local_object.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 96ecb7356c0fe..790c270c06785 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -405,6 +405,9 @@ static void rxrpc_local_processor(struct work_struct *work)
 		container_of(work, struct rxrpc_local, processor);
 	bool again;
+	if (local->dead)
+		return;
 	trace_rxrpc_local(local->debug_id, rxrpc_local_processing,
 			  refcount_read(&local->ref), NULL);

Powered by blists - more mailing lists