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Unset all auxiliary groups and simplify code #2823

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Merged
merged 1 commit into from
Nov 22, 2024
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Unset all auxiliary groups and simplify code #2823

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4 changes: 1 addition & 3 deletions judge/runguard.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -923,9 +923,7 @@ void setrestrictions()
/* Set group-id (must be root for this, so before setting user). */
if ( use_group ) {
if ( setgid(rungid) ) error(errno,"cannot set group ID to `%d'",rungid);
gid_t aux_groups[1];
aux_groups[0] = rungid;
if ( setgroups(1, aux_groups) ) error(errno,"cannot clear auxiliary groups");
if ( setgroups(0, NULL) ) error(errno,"cannot clear auxiliary groups");

verbose("using group ID `%d'",rungid);
}
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