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| author | Karel Zak | 2017-05-29 13:25:36 +0200 |
|---|---|---|
| committer | Karel Zak | 2017-05-29 13:25:36 +0200 |
| commit | b4cb2b48f9ad7dc2fe925ea23ccc8dba24260c9e (patch) | |
| tree | 635a981d7255cdcbdb01747024e27dd0dcd31cf4 /term-utils/wall.c | |
| parent | libfdisk: fix variable shadowing (diff) | |
| download | kernel-qcow2-util-linux-b4cb2b48f9ad7dc2fe925ea23ccc8dba24260c9e.tar.gz kernel-qcow2-util-linux-b4cb2b48f9ad7dc2fe925ea23ccc8dba24260c9e.tar.xz kernel-qcow2-util-linux-b4cb2b48f9ad7dc2fe925ea23ccc8dba24260c9e.zip | |
wall: make sure with not referencing a null pointer
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'term-utils/wall.c')
| -rw-r--r-- | term-utils/wall.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/term-utils/wall.c b/term-utils/wall.c index 6dec05c12..a9dde15be 100644 --- a/term-utils/wall.c +++ b/term-utils/wall.c @@ -147,6 +147,9 @@ static int is_gr_member(const char *login, const struct group_workspace *buf) int rc; pw = getpwnam(login); + if (!pw) + return 0; + if (buf->requested_group == pw->pw_gid) return 1; |