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| author | Konstantin Belousov <kib@FreeBSD.org> | 2016-04-15 09:13:01 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2016-04-15 09:13:01 +0000 |
| commit | 16952e289fd52b5b717580723e4773f98e31a125 (patch) | |
| tree | 3e77ec4e817c112201a5d22424f003649e13ab53 /sys/ddb/db_ps.c | |
| parent | 8310528673f24f21031d49ffdd544f8b9368e35f (diff) | |
| download | src-16952e289fd52b5b717580723e4773f98e31a125.tar.gz src-16952e289fd52b5b717580723e4773f98e31a125.zip | |
Avoid NULL pointer dereference, for a process which is not (yet) a
member of a process group, e.g. during the system bootstrap.
Submitted by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
MFC after: 1 week
Notes
Notes:
svn path=/head/; revision=298043
Diffstat (limited to 'sys/ddb/db_ps.c')
| -rw-r--r-- | sys/ddb/db_ps.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/ddb/db_ps.c b/sys/ddb/db_ps.c index 76ab2c586240..e20b3636bdbb 100644 --- a/sys/ddb/db_ps.c +++ b/sys/ddb/db_ps.c @@ -184,7 +184,8 @@ db_ps(db_expr_t addr, bool hasaddr, db_expr_t count, char *modif) strlcat(state, "V", sizeof(state)); if (p->p_flag & P_SYSTEM || p->p_lock > 0) strlcat(state, "L", sizeof(state)); - if (p->p_session != NULL && SESS_LEADER(p)) + if (p->p_pgrp != NULL && p->p_session != NULL && + SESS_LEADER(p)) strlcat(state, "s", sizeof(state)); /* Cheated here and didn't compare pgid's. */ if (p->p_flag & P_CONTROLT) |