* [tip: locking/core] generic arch_futex_atomic_op_inuser() doesn't need access_ok()
@ 2020-03-28 11:06 tip-bot2 for Al Viro
0 siblings, 0 replies; only message in thread
From: tip-bot2 for Al Viro @ 2020-03-28 11:06 UTC (permalink / raw)
To: linux-tip-commits; +Cc: Al Viro, x86, LKML
The following commit has been merged into the locking/core branch of tip:
Commit-ID: a251b2d513ea4116ddb5487610e4b4048c7aa397
Gitweb: https://git.kernel.org/tip/a251b2d513ea4116ddb5487610e4b4048c7aa397
Author: Al Viro <viro@zeniv.linux.org.uk>
AuthorDate: Tue, 18 Feb 2020 12:19:23 -05:00
Committer: Al Viro <viro@zeniv.linux.org.uk>
CommitterDate: Fri, 27 Mar 2020 23:58:55 -04:00
generic arch_futex_atomic_op_inuser() doesn't need access_ok()
uses get_user() and put_user() for memory accesses
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/asm-generic/futex.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index 3eab7ba..f4c3470 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -33,8 +33,6 @@ arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
int oldval, ret;
u32 tmp;
- if (!access_ok(uaddr, sizeof(u32)))
- return -EFAULT;
preempt_disable();
ret = -EFAULT;
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