From: Julia Lawall <julia.lawall@inria.fr>
To: Denis Efremov <efremov@linux.com>
Cc: Kees Cook <keescook@chromium.org>,
cocci@systeme.lip6.fr, linux-kernel@vger.kernel.org
Subject: Re: [Cocci] [PATCH v3] coccinelle: misc: add array_size_dup script to detect missed overflow checks
Date: Sun, 21 Jun 2020 22:56:07 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.22.394.2006212255140.2501@hadrien> (raw)
In-Reply-To: <20200619131313.15468-1-efremov@linux.com>
> +@script:python depends on report@
> +p1 << as_next.p1;
> +p2 << as_next.p2;
> +@@
> +
> +coccilib.report.print_report(p1[0],
> +f"WARNING: array_size is used down the code (line {p2[0].line}) to compute the same size")
I get python failures for all of these messages. I know nothing about
python. How is this supposed to work? Is it a python 2 vs python 3
thing?
julia
> +
> +@script:python depends on org@
> +p1 << as_next.p1;
> +p2 << as_next.p2;
> +@@
> +
> +coccilib.org.print_todo(p1[0],
> +f"WARNING: array_size is used down the code (line {p2[0].line}) to compute the same size")
> +
> +@as_prev@
> +expression subE1 <= as.E1;
> +expression subE2 <= as.E2;
> +expression as.E1, as.E2, E3;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* array_size(E1, E2)@p1
> + ... when != \(E1\|E2\|subE1\|subE2\) aop E3
> + when != &\(E1\|E2\|subE1\|subE2\)
> +* E1 * E2@p2
> +
> +@script:python depends on report@
> +p1 << as_prev.p1;
> +p2 << as_prev.p2;
> +@@
> +
> +coccilib.report.print_report(p2[0],
> +f"WARNING: array_size is already used (line {p1[0].line}) to compute the same size")
> +
> +@script:python depends on org@
> +p1 << as_prev.p1;
> +p2 << as_prev.p2;
> +@@
> +
> +coccilib.org.print_todo(p2[0],
> +f"WARNING: array_size is already used (line {p1[0].line}) to compute the same size")
> +
> +@as_dup@
> +expression subE1 <= as.E1;
> +expression subE2 <= as.E2;
> +expression as.E1, as.E2, E3;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* array_size(E1, E2)@p1
> + ... when != \(E1\|E2\|subE1\|subE2\) aop E3
> + when != &\(E1\|E2\|subE1\|subE2\)
> +* array_size(E1, E2)@p2
> +
> +@script:python depends on report@
> +p1 << as_dup.p1;
> +p2 << as_dup.p2;
> +@@
> +
> +coccilib.report.print_report(p2[0],
> +f"WARNING: same array_size (line {p1[0].line})")
> +
> +@script:python depends on org@
> +p1 << as_dup.p1;
> +p2 << as_dup.p2;
> +@@
> +
> +coccilib.org.print_todo(p2[0],
> +f"WARNING: same array_size (line {p1[0].line})")
> +
> +@as3@
> +expression E1, E2, E3;
> +@@
> +
> +array3_size(E1, E2, E3)
> +
> +@as3_next@
> +expression subE1 <= as3.E1;
> +expression subE2 <= as3.E2;
> +expression subE3 <= as3.E3;
> +expression as3.E1, as3.E2, as3.E3, E4;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* E1 * E2 * E3@p1
> + ... when != \(E1\|E2\|E3\|subE1\|subE2\|subE3\) aop E4
> + when != &\(E1\|E2\|E3\|subE1\|subE2\|subE3\)
> +* array3_size(E1, E2, E3)@p2
> +
> +@script:python depends on report@
> +p1 << as3_next.p1;
> +p2 << as3_next.p2;
> +@@
> +
> +coccilib.report.print_report(p1[0],
> +f"WARNING: array3_size is used down the code (line {p2[0].line}) to compute the same size")
> +
> +@script:python depends on org@
> +p1 << as3_next.p1;
> +p2 << as3_next.p2;
> +@@
> +
> +coccilib.org.print_todo(p1[0],
> +f"WARNING: array3_size is used down the code (line {p2[0].line}) to compute the same size")
> +
> +@as3_prev@
> +expression subE1 <= as3.E1;
> +expression subE2 <= as3.E2;
> +expression subE3 <= as3.E3;
> +expression as3.E1, as3.E2, as3.E3, E4;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* array3_size(E1, E2, E3)@p1
> + ... when != \(E1\|E2\|E3\|subE1\|subE2\|subE3\) aop E4
> + when != &\(E1\|E2\|E3\|subE1\|subE2\|subE3\)
> +* E1 * E2 * E3@p2
> +
> +@script:python depends on report@
> +p1 << as3_prev.p1;
> +p2 << as3_prev.p2;
> +@@
> +
> +coccilib.report.print_report(p2[0],
> +f"WARNING: array3_size is already used (line {p1[0].line}) to compute the same size")
> +
> +@script:python depends on org@
> +p1 << as3_prev.p1;
> +p2 << as3_prev.p2;
> +@@
> +
> +coccilib.org.print_todo(p2[0],
> +f"WARNING: array3_size is already used (line {p1[0].line}) to compute the same size")
> +
> +@as3_dup@
> +expression subE1 <= as3.E1;
> +expression subE2 <= as3.E2;
> +expression subE3 <= as3.E3;
> +expression as3.E1, as3.E2, as3.E3, E4;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* array3_size(E1, E2, E3)@p1
> + ... when != \(E1\|E2\|E3\|subE1\|subE2\|subE3\) aop E4
> + when != &\(E1\|E2\|E3\|subE1\|subE2\|subE3\)
> +* array3_size(E1, E2, E3)@p2
> +
> +@script:python depends on report@
> +p1 << as3_dup.p1;
> +p2 << as3_dup.p2;
> +@@
> +
> +coccilib.report.print_report(p2[0],
> +f"WARNING: same array3_size (line {p1[0].line})")
> +
> +@script:python depends on org@
> +p1 << as3_dup.p1;
> +p2 << as3_dup.p2;
> +@@
> +
> +coccilib.org.print_todo(p2[0],
> +f"WARNING: same array3_size (line {p1[0].line})")
> +
> +@ss@
> +expression E1, E2, E3;
> +@@
> +
> +struct_size(E1, E2, E3)
> +
> +@ss_next@
> +expression subE3 <= ss.E3;
> +expression ss.E1, ss.E2, ss.E3, E4;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* E1 * E2 + E3@p1
> + ... when != \(E3\|subE3\) aop E4
> + when != &\(E3\|subE3\)
> +* struct_size(E1, E2, E3)@p2
> +
> +@script:python depends on report@
> +p1 << ss_next.p1;
> +p2 << ss_next.p2;
> +@@
> +
> +coccilib.report.print_report(p1[0],
> +f"WARNING: struct_size is used down the code (line {p2[0].line}) to compute the same size")
> +
> +@script:python depends on org@
> +p1 << ss_next.p1;
> +p2 << ss_next.p2;
> +@@
> +
> +coccilib.org.print_todo(p1[0],
> +f"WARNING: struct_size is used down the code (line {p2[0].line}) to compute the same size")
> +
> +@ss_prev@
> +expression subE3 <= ss.E3;
> +expression ss.E1, ss.E2, ss.E3, E4;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* struct_size(E1, E2, E3)@p1
> + ... when != \(E3\|subE3\) aop E4
> + when != &\(E3\|subE3\)
> +* E1 * E2 + E3@p2
> +
> +@script:python depends on report@
> +p1 << ss_prev.p1;
> +p2 << ss_prev.p2;
> +@@
> +
> +coccilib.report.print_report(p2[0],
> +f"WARNING: struct_size is already used (line {p1[0].line}) to compute the same size")
> +
> +@script:python depends on org@
> +p1 << ss_prev.p1;
> +p2 << ss_prev.p2;
> +@@
> +
> +coccilib.org.print_todo(p2[0],
> +f"WARNING: struct_size is already used (line {p1[0].line}) to compute the same size")
> +
> +@ss_dup@
> +expression subE3 <= ss.E3;
> +expression ss.E1, ss.E2, ss.E3, E4;
> +assignment operator aop;
> +position p1, p2;
> +@@
> +
> +* struct_size(E1, E2, E3)@p1
> + ... when != \(E3\|subE3\) aop E4
> + when != &\(E3\|subE3\)
> +* struct_size(E1, E2, E3)@p2
> +
> +@script:python depends on report@
> +p1 << ss_dup.p1;
> +p2 << ss_dup.p2;
> +@@
> +
> +coccilib.report.print_report(p2[0],
> +f"WARNING: same struct_size (line {p1[0].line})")
> +
> +@script:python depends on org@
> +p1 << ss_dup.p1;
> +p2 << ss_dup.p2;
> +@@
> +
> +coccilib.org.print_todo(p2[0],
> +f"WARNING: same struct_size (line {p1[0].line})")
> --
> 2.26.2
>
> _______________________________________________
> Cocci mailing list
> Cocci@systeme.lip6.fr
> https://systeme.lip6.fr/mailman/listinfo/cocci
>
next prev parent reply other threads:[~2020-06-21 20:56 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 10:20 [PATCH] coccinelle: misc: add array_size_dup script to detect missed overlow checks Denis Efremov
2020-06-15 18:23 ` Kees Cook
2020-06-15 18:35 ` Denis Efremov
2020-06-15 18:46 ` [Cocci] " Gustavo A. R. Silva
2020-06-17 9:32 ` Denis Efremov
2020-06-17 10:55 ` Denis Efremov
2020-06-17 20:08 ` Julia Lawall
2020-06-17 20:15 ` Julia Lawall
2020-06-17 18:15 ` Kees Cook
2020-06-17 18:54 ` [Cocci] " Julia Lawall
2020-06-18 19:52 ` Kees Cook
2020-06-18 19:56 ` Julia Lawall
2020-06-18 20:48 ` Kees Cook
2020-06-18 21:08 ` Julia Lawall
2020-06-17 20:30 ` Julia Lawall
2020-06-17 20:50 ` Denis Efremov
2020-06-17 20:52 ` Julia Lawall
2020-06-18 10:23 ` [PATCH v2] " Denis Efremov
2020-06-19 13:13 ` [PATCH v3] coccinelle: misc: add array_size_dup script to detect missed overflow checks Denis Efremov
2020-06-21 20:53 ` [Cocci] " Julia Lawall
2020-06-21 20:56 ` Julia Lawall [this message]
2020-06-22 12:12 ` Denis Efremov
2020-06-22 12:16 ` Denis Efremov
2020-06-22 12:19 ` Julia Lawall
2020-06-22 22:10 ` [PATCH v4] " Denis Efremov
2020-06-24 19:42 ` Julia Lawall
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