From 17fad61ec4969a070760eaaf537e16c5a5615bd6 Mon Sep 17 00:00:00 2001
From: Catalin Visinescu <catalin_visinescu@yahoo.com>
Date: Sat, 18 Jul 2026 19:51:53 -0400
Subject: [PATCH] drivers/eeprom: I2C EEPROM Read/Write Kernel Operations Cause
 a Device Crash

If user passes NULL as buffer, the driver may crash. This is problematic
for NuttX protected and kernel builds.

Details in the issue: https://github.com/apache/nuttx/issues/19473

While this fixes the issue with a typical NULL pointer, fundamentally this
will be addressed with the implementation of access_ok().

https://man7.org/linux/man-pages/man2/access.2.html

Signed-off-by: Catalin Visinescu <catalin_visinescu@yahoo.com>
---
 fs/vfs/fs_read.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/vfs/fs_read.c b/fs/vfs/fs_read.c
index 677a420a248..a8e50e0a546 100644
--- a/fs/vfs/fs_read.c
+++ b/fs/vfs/fs_read.c
@@ -178,15 +178,13 @@ ssize_t file_readv(FAR struct file *filep,
 
   /* Are all iov_base accessible? */
 
-#if !defined(CONFIG_BUILD_KERNEL) || CONFIG_ARCH_TEXT_VBASE != 0
   for (ret = 0; ret < iovcnt; ret++)
     {
-      if (iov[ret].iov_base == NULL && iov[ret].iov_len != 0)
+      if (iov[ret].iov_base == NULL)
         {
           return -EFAULT;
         }
     }
-#endif
 
   ret = -EBADF;