fs: lockd: avoid possible wrong NULL parameter

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[ 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>

...

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Su Hui 2023-08-04 09:26:57 +08:00 • committed by Greg Kroah-Hartman

parent ac8a5bd24c

commit 3dc93111c3

1 changed files with 3 additions and 0 deletions

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fs/lockd/mon.c

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