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Subject[PATCH] Missing __user in pointer referenced within copy_from_user

Pointers to user data should be marked with a __user hint. This one is missing.

Signed-off-by: Glauber de Oliveira Costa <>
fs/proc/base.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 4f5745a..01f7769 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -581,7 +581,7 @@ out_no_task:

#ifndef mem_write
/* This is a security hazard */
-static ssize_t mem_write(struct file * file, const char * buf,
+static ssize_t mem_write(struct file * file, const char __user *buf,
size_t count, loff_t *ppos)
int copied;
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