Commit 5565a8e1 authored by Azeem Shaikh's avatar Azeem Shaikh Committed by Sumit Semwal

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/89Signed-off-by: default avatarAzeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarSumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523021943.2406847-1-azeemshaikh38@gmail.com
parent 6a038f01
...@@ -85,7 +85,7 @@ static struct sync_timeline *sync_timeline_create(const char *name) ...@@ -85,7 +85,7 @@ static struct sync_timeline *sync_timeline_create(const char *name)
kref_init(&obj->kref); kref_init(&obj->kref);
obj->context = dma_fence_context_alloc(1); 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; obj->pt_tree = RB_ROOT;
INIT_LIST_HEAD(&obj->pt_list); INIT_LIST_HEAD(&obj->pt_list);
......
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