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- fixed buffers size

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hamza 2025-05-21 14:10:38 +02:00
parent 8d67347001
commit ed8f1d31a7
1 changed files with 2 additions and 1 deletions
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3
drivers/sst/sst_chrdev.c
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@ -33,7 +33,8 @@ static ssize_t universe_read(struct file *file, char __user *buf, size_t count,
} }
len = strlen(answer); len = strlen(answer);
sst_debug("About to copy %lu bytes of your answer at 0x%lx to the userspace\n", len, (uintptr_t)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"); pr_err("User copy failed!\n");
kfree(answer); kfree(answer);
return -EFAULT; return -EFAULT;