From 38a2204f5298620e8a1c3b1dc7b831425106dbc0 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Wed, 4 Dec 2019 07:13:22 +0100 Subject: nfsd: depend on CRYPTO_MD5 for legacy client tracking The legacy client tracking infrastructure of nfsd makes use of MD5 to derive a client's recovery directory name. As the nfsd module doesn't declare any dependency on CRYPTO_MD5, though, it may fail to allocate the hash if the kernel was compiled without it. As a result, generation of client recovery directories will fail with the following error: NFSD: unable to generate recoverydir name The explicit dependency on CRYPTO_MD5 was removed as redundant back in 6aaa67b5f3b9 (NFSD: Remove redundant "select" clauses in fs/Kconfig 2008-02-11) as it was already implicitly selected via RPCSEC_GSS_KRB5. This broke when RPCSEC_GSS_KRB5 was made optional for NFSv4 in commit df486a25900f (NFS: Fix the selection of security flavours in Kconfig) at a later point. Fix the issue by adding back an explicit dependency on CRYPTO_MD5. Fixes: df486a25900f (NFS: Fix the selection of security flavours in Kconfig) Signed-off-by: Patrick Steinhardt Signed-off-by: J. Bruce Fields --- fs/nfsd/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig index c4b1a89b8845..f2f81561ebb6 100644 --- a/fs/nfsd/Kconfig +++ b/fs/nfsd/Kconfig @@ -73,6 +73,7 @@ config NFSD_V4 select NFSD_V3 select FS_POSIX_ACL select SUNRPC_GSS + select CRYPTO_MD5 select CRYPTO_SHA256 select GRACE_PERIOD help -- cgit v1.2.3-59-g8ed1b