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
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=298043
@ -184,7 +184,8 @@ db_ps(db_expr_t addr, bool hasaddr, db_expr_t count, char *modif)
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strlcat(state, "V", sizeof(state));
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if (p->p_flag & P_SYSTEM || p->p_lock > 0)
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strlcat(state, "L", sizeof(state));
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if (p->p_session != NULL && SESS_LEADER(p))
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if (p->p_pgrp != NULL && p->p_session != NULL &&
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SESS_LEADER(p))
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strlcat(state, "s", sizeof(state));
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/* Cheated here and didn't compare pgid's. */
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if (p->p_flag & P_CONTROLT)
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