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path: root/drivers/char/tpm/tpm_vtpm_proxy.c
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Diffstat (limited to 'drivers/char/tpm/tpm_vtpm_proxy.c')
-rw-r--r--drivers/char/tpm/tpm_vtpm_proxy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c b/drivers/char/tpm/tpm_vtpm_proxy.c
index 91c772e38bb5..5c865987ba5c 100644
--- a/drivers/char/tpm/tpm_vtpm_proxy.c
+++ b/drivers/char/tpm/tpm_vtpm_proxy.c
@@ -91,7 +91,7 @@ static ssize_t vtpm_proxy_fops_read(struct file *filp, char __user *buf,
len = proxy_dev->req_len;
- if (count < len) {
+ if (count < len || len > sizeof(proxy_dev->buffer)) {
mutex_unlock(&proxy_dev->buf_lock);
pr_debug("Invalid size in recv: count=%zd, req_len=%zd\n",
count, len);