* [merged] stackleak-let-stack_erasing_sysctl-take-a-kernel-pointer-buffer.patch removed from -mm tree
@ 2020-09-26 1:58 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-09-26 1:58 UTC (permalink / raw)
To: hch, mm-commits, tklauser, viro
The patch titled
Subject: stackleak: let stack_erasing_sysctl take a kernel pointer buffer
has been removed from the -mm tree. Its filename was
stackleak-let-stack_erasing_sysctl-take-a-kernel-pointer-buffer.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Tobias Klauser <tklauser@distanz.ch>
Subject: stackleak: let stack_erasing_sysctl take a kernel pointer buffer
Commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
changed ctl_table.proc_handler to take a kernel pointer. Adjust the
signature of stack_erasing_sysctl to match ctl_table.proc_handler which
fixes the following sparse warning:
kernel/stackleak.c:31:50: warning: incorrect type in argument 3 (different address spaces)
kernel/stackleak.c:31:50: expected void *
kernel/stackleak.c:31:50: got void [noderef] __user *buffer
Link: https://lkml.kernel.org/r/20200907093253.13656-1-tklauser@distanz.ch
Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/stackleak.h | 2 +-
kernel/stackleak.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/stackleak.h~stackleak-let-stack_erasing_sysctl-take-a-kernel-pointer-buffer
+++ a/include/linux/stackleak.h
@@ -25,7 +25,7 @@ static inline void stackleak_task_init(s
#ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE
int stack_erasing_sysctl(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp, loff_t *ppos);
+ void *buffer, size_t *lenp, loff_t *ppos);
#endif
#else /* !CONFIG_GCC_PLUGIN_STACKLEAK */
--- a/kernel/stackleak.c~stackleak-let-stack_erasing_sysctl-take-a-kernel-pointer-buffer
+++ a/kernel/stackleak.c
@@ -20,7 +20,7 @@
static DEFINE_STATIC_KEY_FALSE(stack_erasing_bypass);
int stack_erasing_sysctl(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp, loff_t *ppos)
+ void *buffer, size_t *lenp, loff_t *ppos)
{
int ret = 0;
int state = !static_branch_unlikely(&stack_erasing_bypass);
_
Patches currently in -mm which might be from tklauser@distanz.ch are
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2020-09-26 1:58 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-26 1:58 [merged] stackleak-let-stack_erasing_sysctl-take-a-kernel-pointer-buffer.patch removed from -mm tree akpm
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.