The patch titled
Subject: compat: return -EFAULT on error in waitid()
has been added to the -mm tree. Its filename is
compat-return-efault-on-error-in-waitid.patch
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------------------------------------------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Subject: compat: return -EFAULT on error in waitid()
The copy_to_user() call returns the number of bytes remaining but we want
to return -EFAULT on error.
Fixes "x32: fix waitid()"
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/compat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/compat.c~compat-return-efault-on-error-in-waitid kernel/compat.c
--- a/kernel/compat.c~compat-return-efault-on-error-in-waitid
+++ a/kernel/compat.c
@@ -593,7 +593,7 @@ COMPAT_SYSCALL_DEFINE5(waitid,
else
ret = put_compat_rusage(&ru, uru);
if (ret)
- return ret;
+ return -EFAULT;
}
BUG_ON(info.si_code & __SI_MASK);
_
Patches currently in -mm which might be from dan.carpenter@xxxxxxxxxx are
linux-next.patch
compat-return-efault-on-error-in-waitid.patch
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