Revision 78c56e53821a7ec3462ce448c1fe6a8d44358831 authored by Linus Torvalds on 30 September 2021, 19:00:46 UTC, committed by Linus Torvalds on 30 September 2021, 19:00:46 UTC
Pull rdma fixes from Jason Gunthorpe:
"Not much too exciting here, although two syzkaller bugs that seem to
have 9 lives may have finally been squashed.
Several core bugs and a batch of driver bug fixes:
- Fix compilation problems in qib and hfi1
- Do not corrupt the joined multicast group state when using
SEND_ONLY
- Several CMA bugs, a reference leak for listening and two syzkaller
crashers
- Various bug fixes for irdma
- Fix a Sleeping while atomic bug in usnic
- Properly sanitize kernel pointers in dmesg
- Two bugs in the 64b CQE support for hns"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/hns: Add the check of the CQE size of the user space
RDMA/hns: Fix the size setting error when copying CQE in clean_cq()
RDMA/hfi1: Fix kernel pointer leak
RDMA/usnic: Lock VF with mutex instead of spinlock
RDMA/hns: Work around broken constant propagation in gcc 8
RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests
RDMA/cma: Do not change route.addr.src_addr.ss_family
RDMA/irdma: Report correct WC error when there are MW bind errors
RDMA/irdma: Report correct WC error when transport retry counter is exceeded
RDMA/irdma: Validate number of CQ entries on create CQ
RDMA/irdma: Skip CQP ring during a reset
MAINTAINERS: Update Broadcom RDMA maintainers
RDMA/cma: Fix listener leak in rdma_cma_listen_on_all() failure
IB/cma: Do not send IGMP leaves for sendonly Multicast groups
IB/qib: Fix clang confusion of NULL pointer comparison
tags.c
// SPDX-License-Identifier: GPL-2.0
/*
* This file contains common tag-based KASAN code.
*
* Copyright (c) 2018 Google, Inc.
* Copyright (c) 2020 Google, Inc.
*/
#include <linux/init.h>
#include <linux/kasan.h>
#include <linux/kernel.h>
#include <linux/memory.h>
#include <linux/mm.h>
#include <linux/static_key.h>
#include <linux/string.h>
#include <linux/types.h>
#include "kasan.h"
void kasan_set_free_info(struct kmem_cache *cache,
void *object, u8 tag)
{
struct kasan_alloc_meta *alloc_meta;
u8 idx = 0;
alloc_meta = kasan_get_alloc_meta(cache, object);
if (!alloc_meta)
return;
#ifdef CONFIG_KASAN_TAGS_IDENTIFY
idx = alloc_meta->free_track_idx;
alloc_meta->free_pointer_tag[idx] = tag;
alloc_meta->free_track_idx = (idx + 1) % KASAN_NR_FREE_STACKS;
#endif
kasan_set_track(&alloc_meta->free_track[idx], GFP_NOWAIT);
}
struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
void *object, u8 tag)
{
struct kasan_alloc_meta *alloc_meta;
int i = 0;
alloc_meta = kasan_get_alloc_meta(cache, object);
if (!alloc_meta)
return NULL;
#ifdef CONFIG_KASAN_TAGS_IDENTIFY
for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
if (alloc_meta->free_pointer_tag[i] == tag)
break;
}
if (i == KASAN_NR_FREE_STACKS)
i = alloc_meta->free_track_idx;
#endif
return &alloc_meta->free_track[i];
}
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