From ed8f1d31a7cd32e9b4112933f2dd8ebf99224c1a Mon Sep 17 00:00:00 2001 From: hamza Date: Wed, 21 May 2025 14:10:38 +0200 Subject: [PATCH] - fixed buffers size --- drivers/sst/sst_chrdev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/sst/sst_chrdev.c b/drivers/sst/sst_chrdev.c index 3b8c8aec9d2f..995b030bbf7e 100644 --- a/drivers/sst/sst_chrdev.c +++ b/drivers/sst/sst_chrdev.c @@ -33,7 +33,8 @@ static ssize_t universe_read(struct file *file, char __user *buf, size_t count, } len = strlen(answer); sst_debug("About to copy %lu bytes of your answer at 0x%lx to the userspace\n", len, (uintptr_t)answer); - if (copy_to_user(buf, answer, len)) { + size_t toCopy = min(count, len); + if (copy_to_user(buf, answer, toCopy)) { pr_err("User copy failed!\n"); kfree(answer); return -EFAULT;