linux-kernel - [PATCH AUTOSEL 5.11 19/44] NFSD: fix error handling in NFSv4.0 callbacks

lists.openwall.net		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>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210325112459.1926846-19-sashal@kernel.org>
Date:   Thu, 25 Mar 2021 07:24:34 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Olga Kornievskaia <kolga@...app.com>,
        Bruce Fields <bfields@...hat.com>,
        Chuck Lever <chuck.lever@...cle.com>,
        Benjamin Coddington <bcodding@...hat.com>,
        Sasha Levin <sashal@...nel.org>, linux-nfs@...r.kernel.org
Subject: [PATCH AUTOSEL 5.11 19/44] NFSD: fix error handling in NFSv4.0 callbacks

From: Olga Kornievskaia <kolga@...app.com>

[ Upstream commit b4250dd868d1b42c0a65de11ef3afbee67ba5d2f ]

When the server tries to do a callback and a client fails it due to
authentication problems, we need the server to set callback down
flag in RENEW so that client can recover.

Suggested-by: Bruce Fields <bfields@...hat.com>
Signed-off-by: Olga Kornievskaia <kolga@...app.com>
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Tested-by: Benjamin Coddington <bcodding@...hat.com>
Link: https://lore.kernel.org/linux-nfs/FB84E90A-1A03-48B3-8BF7-D9D10AC2C9FE@oracle.com/T/#t
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/nfsd/nfs4callback.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 052be5bf9ef5..7325592b456e 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1189,6 +1189,7 @@ static void nfsd4_cb_done(struct rpc_task *task, void *calldata)
 		switch (task->tk_status) {
 		case -EIO:
 		case -ETIMEDOUT:
+		case -EACCES:
 			nfsd4_mark_cb_down(clp, task->tk_status);
 		}
 		break;
-- 
2.30.1