diff options
| author | Nicholas Marriott <nicm@cvs.openbsd.org> | 2020-07-13 10:10:11 +0000 |
|---|---|---|
| committer | Nicholas Marriott <nicm@cvs.openbsd.org> | 2020-07-13 10:10:11 +0000 |
| commit | 081f8ecebd4f7fcc6882b0df75126ed70d1b609c (patch) | |
| tree | 158876c69f8e5a08333bb4d241cb7c1624024b89 /usr.bin/tmux | |
| parent | 49bcb32d18511843672ff708bf284e994d654fbd (diff) | |
Do not dereference NULL environment variable value, GitHub issue 2304.
Diffstat (limited to 'usr.bin/tmux')
| -rw-r--r-- | usr.bin/tmux/cmd-parse.y | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/usr.bin/tmux/cmd-parse.y b/usr.bin/tmux/cmd-parse.y index 732f4cb419f..2c701ba7706 100644 --- a/usr.bin/tmux/cmd-parse.y +++ b/usr.bin/tmux/cmd-parse.y @@ -1,4 +1,4 @@ -/* $OpenBSD: cmd-parse.y,v 1.30 2020/06/04 16:06:01 nicm Exp $ */ +/* $OpenBSD: cmd-parse.y,v 1.31 2020/07/13 10:10:10 nicm Exp $ */ /* * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com> @@ -1432,7 +1432,7 @@ yylex_token_variable(char **buf, size_t *len) name[namelen] = '\0'; envent = environ_find(global_environ, name); - if (envent != NULL) { + if (envent != NULL && envent->value != NULL) { value = envent->value; log_debug("%s: %s -> %s", __func__, name, value); yylex_append(buf, len, value, strlen(value)); |