Re: [PATCH AUTOSEL 4.14 6/8] netfilter: ebtables: fix fortify warnings in size_entry_mwt()

From: Pavel Machek
Date: Mon Sep 11 2023 - 18:16:51 EST


Hi!

> [ Upstream commit a7ed3465daa240bdf01a5420f64336fee879c09d ]
>
> When compiling with gcc 13 and CONFIG_FORTIFY_SOURCE=y, the following
> warning appears:
>
> In function ‘fortify_memcpy_chk’,
> inlined from ‘size_entry_mwt’ at net/bridge/netfilter/ebtables.c:2118:2:
> ./include/linux/fortify-string.h:592:25: error: call to ‘__read_overflow2_field’
> declared with attribute warning: detected read beyond size of field (2nd parameter);
> maybe use struct_group()? [-Werror=attribute-warning]
> 592 | __read_overflow2_field(q_size_field, size);
> |
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This is not queued for 4.19. Mistake?

Best regards,
Pavel
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DENX Software Engineering GmbH, Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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