The locking fix to sys_mincore in commit
2f77d107050abc14bc393b34bdb7b91cf670c250 returns -ENOMEM when given a
bad userspace address. It should return -EFAULT.
Signed-off-by: Joel Becker <[email protected]>
diff --git a/mm/mincore.c b/mm/mincore.c
index 8aca6f7..4af963c 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -122,7 +122,7 @@ asmlinkage long sys_mincore(unsigned long start, size_t len,
/* ..and we need to be passed a valid user-space range */
if (!access_ok(VERIFY_READ, (void __user *) start, len))
- return -ENOMEM;
+ return -EFAULT;
/* This also avoids any overflows on PAGE_CACHE_ALIGN */
pages = len >> PAGE_SHIFT;
--
"But then she looks me in the eye
And says, 'We're going to last forever,'
And man you know I can't begin to doubt it.
Cause it just feels so good and so free and so right,
I know we ain't never going to change our minds about it, Hey!
Here comes my girl."
Joel Becker
Principal Software Developer
Oracle
E-mail: [email protected]
Phone: (650) 506-8127
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