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cdx: Fix off-by-one error in cdx_rpmsg_probe()

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In cdx_rpmsg_probe(), strscpy() is incorrectly called with the length of
the source string (excluding the NUL terminator) rather than the size of
the destination buffer. This results in one character less being copied
from 'cdx_rpmsg_id_table[0].name' to 'chinfo.name'.

Use the destination buffer size instead to ensure the name is copied
correctly.

Cc: stable <stable@kernel.org>
Fixes: 2a226927d9 ("cdx: add rpmsg communication channel for CDX")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20250806090512.121260-2-thorsten.blum@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thorsten Blum
2025-08-06 11:05:09 +02:00
committed by Greg Kroah-Hartman
parent 1ca61060de
commit 300a0cfe9f
1 changed files with 1 additions and 2 deletions
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3
drivers/cdx/controller/cdx_rpmsg.c
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@@ -129,8 +129,7 @@ static int cdx_rpmsg_probe(struct rpmsg_device *rpdev)
chinfo.src = RPMSG_ADDR_ANY;
chinfo.dst = rpdev->dst;
strscpy(chinfo.name, cdx_rpmsg_id_table[0].name,
strlen(cdx_rpmsg_id_table[0].name));
strscpy(chinfo.name, cdx_rpmsg_id_table[0].name, sizeof(chinfo.name));
cdx_mcdi->ept = rpmsg_create_ept(rpdev, cdx_rpmsg_cb, NULL, chinfo);
if (!cdx_mcdi->ept) {