Commit 038d40ed authored by Azeem Shaikh's avatar Azeem Shaikh Committed by Kees Cook

scsi: aacraid: 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 avatarKees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230517143049.1519806-1-azeemshaikh38@gmail.com
parent 8d82557e
......@@ -3289,7 +3289,7 @@ static int query_disk(struct aac_dev *dev, void __user *arg)
else
qd.unmapped = 0;
strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
strscpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
......
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