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dma-buf/sw_sync: Replace all non-returning strlcpy with strscpy 

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523021943.2406847-1-azeemshaikh38@gmail.com
This commit is contained in:
Azeem Shaikh 2023-05-23 02:19:43 +00:00 committed by Sumit Semwal
parent 6a038f0183
commit 5565a8e1a0
1 changed files with 1 additions and 1 deletions
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2
drivers/dma-buf/sw_sync.c
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@ -85,7 +85,7 @@ static struct sync_timeline *sync_timeline_create(const char *name)
kref_init(&obj->kref);
obj->context = dma_fence_context_alloc(1);
strlcpy(obj->name, name, sizeof(obj->name));
strscpy(obj->name, name, sizeof(obj->name));
obj->pt_tree = RB_ROOT;
INIT_LIST_HEAD(&obj->pt_list);