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Su Hui 02a29a2455 fs: lockd: avoid possible wrong NULL parameter 
[ Upstream commit de8d38cf44 ]

clang's static analysis warning: fs/lockd/mon.c: line 293, column 2:
Null pointer passed as 2nd argument to memory copy function.

Assuming 'hostname' is NULL and calling 'nsm_create_handle()', this will
pass NULL as 2nd argument to memory copy function 'memcpy()'. So return
NULL if 'hostname' is invalid.

Fixes: 77a3ef33e2 ("NSM: More clean up of nsm_get_handle()")
Signed-off-by: Su Hui <suhui@nfschina.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-09-13 09:42:49 +02:00
..
Makefile
…
clnt4xdr.c lockd: set file_lock start and end when decoding nlm4 testargs 2023-03-30 12:49:23 +02:00
clntlock.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
clntproc.c SUNRPC: Trace calls to .rpc_call_done 2021-10-20 18:09:54 -04:00
clntxdr.c NFS: Remove print_overflow_msg() 2019-02-13 11:53:45 -05:00
host.c lockd: move from strlcpy with unused retval to strscpy 2022-09-26 14:02:20 -04:00
mon.c fs: lockd: avoid possible wrong NULL parameter 2023-09-13 09:42:49 +02:00
netns.h
…
procfs.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
procfs.h
…
svc.c lockd: drop inappropriate svc_get() from locked_get() 2023-07-19 16:20:56 +02:00
svc4proc.c SUNRPC: Parametrize how much of argsize should be zeroed 2022-09-26 14:02:42 -04:00
svclock.c NLM: Defend against file_lock changes after vfs_test_lock() 2022-07-29 20:08:56 -04:00
svcproc.c SUNRPC: Parametrize how much of argsize should be zeroed 2022-09-26 14:02:42 -04:00
svcshare.c
…
svcsubs.c lockd: set other missing fields when unlocking files 2022-12-31 13:32:00 +01:00
svcxdr.h NLM: Fix svcxdr_encode_owner() 2021-09-17 10:35:10 -04:00
xdr.c SUNRPC: Change return value type of .pc_encode 2021-10-13 11:34:49 -04:00
xdr4.c lockd: set file_lock start and end when decoding nlm4 testargs 2023-03-30 12:49:23 +02:00