1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
// SPDX-License-Identifier: GPL-2.0-only
/// If list_for_each_entry, etc complete a traversal of the list, the iterator
/// variable ends up pointing to an address at an offset from the list head,
/// and not a meaningful structure. Thus this value should not be used after
/// the end of the iterator.
//#False positives arise when there is a goto in the iterator and the
//#reported reference is at the label of this goto. Some flag tests
//#may also cause a report to be a false positive.
///
// Confidence: Moderate
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LIP6.
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers
virtual context
virtual org
virtual report
@r exists@
identifier c,member;
expression E,x;
iterator name list_for_each_entry;
iterator name list_for_each_entry_reverse;
iterator name list_for_each_entry_continue;
iterator name list_for_each_entry_continue_reverse;
iterator name list_for_each_entry_from;
iterator name list_for_each_entry_safe;
iterator name list_for_each_entry_safe_continue;
iterator name list_for_each_entry_safe_from;
iterator name list_for_each_entry_safe_reverse;
iterator name hlist_for_each_entry;
iterator name hlist_for_each_entry_continue;
iterator name hlist_for_each_entry_from;
iterator name hlist_for_each_entry_safe;
statement S;
position p1,p2;
type T;
@@
(
list_for_each_entry@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_reverse@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_continue@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_continue_reverse@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_from@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_safe@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_safe_continue@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_safe_from@p1(c,...,member) { ... when != break;
when forall
when strict
}
|
list_for_each_entry_safe_reverse@p1(c,...,member) { ... when != break;
when forall
when strict
}
)
...
(
list_for_each_entry(c,...) S
|
list_for_each_entry_reverse(c,...) S
|
list_for_each_entry_continue(c,...) S
|
list_for_each_entry_continue_reverse(c,...) S
|
list_for_each_entry_from(c,...) S
|
list_for_each_entry_safe(c,...) S
|
list_for_each_entry_safe(x,c,...) S
|
list_for_each_entry_safe_continue(c,...) S
|
list_for_each_entry_safe_continue(x,c,...) S
|
list_for_each_entry_safe_from(c,...) S
|
list_for_each_entry_safe_from(x,c,...) S
|
list_for_each_entry_safe_reverse(c,...) S
|
list_for_each_entry_safe_reverse(x,c,...) S
|
hlist_for_each_entry(c,...) S
|
hlist_for_each_entry_continue(c,...) S
|
hlist_for_each_entry_from(c,...) S
|
hlist_for_each_entry_safe(c,...) S
|
list_remove_head(x,c,...)
|
list_entry_is_head(c,...)
|
sizeof(<+...c...+>)
|
&c->member
|
T c;
|
c = E
|
*c@p2
)
@script:python depends on org@
p1 << r.p1;
p2 << r.p2;
@@
cocci.print_main("invalid iterator index reference",p2)
cocci.print_secs("iterator",p1)
@script:python depends on report@
p1 << r.p1;
p2 << r.p2;
@@
msg = "ERROR: invalid reference to the index variable of the iterator on line %s" % (p1[0].line)
coccilib.report.print_report(p2[0], msg)
|
