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staging: vc04_services: changen strncpy() to strscpy_pad()

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commit ef25725b7f8aaffd7756974d3246ec44fae0a5cf upstream.

gcc-14 warns about this strncpy() that results in a non-terminated
string for an overflow:

In file included from include/linux/string.h:369,
                 from drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c:20:
In function 'strncpy',
    inlined from 'create_component' at drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c:940:2:
include/linux/fortify-string.h:108:33: error: '__builtin_strncpy' specified bound 128 equals destination size [-Werror=stringop-truncation]

Change it to strscpy_pad(), which produces a properly terminated and
zero-padded string.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/20240313163712.224585-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann
2024-03-13 17:36:56 +01:00
committed by Greg Kroah-Hartman
parent 3678cf67ff
commit 008bf3d622
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
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@@ -938,8 +938,8 @@ static int create_component(struct vchiq_mmal_instance *instance,
/* build component create message */ /* build component create message */
m.h.type = MMAL_MSG_TYPE_COMPONENT_CREATE; m.h.type = MMAL_MSG_TYPE_COMPONENT_CREATE;
m.u.component_create.client_component = component->client_component; m.u.component_create.client_component = component->client_component;
strncpy(m.u.component_create.name, name, strscpy_pad(m.u.component_create.name, name,
sizeof(m.u.component_create.name)); sizeof(m.u.component_create.name));
ret = send_synchronous_mmal_msg(instance, &m, ret = send_synchronous_mmal_msg(instance, &m,
sizeof(m.u.component_create), sizeof(m.u.component_create),