Revision 580e4273d7a883ececfefa692c1f96bdbacb99b5 authored by Cong Wang on 02 October 2020, 19:13:34 UTC, committed by David S. Miller on 04 October 2020, 21:53:06 UTC
Although we take RTNL on dump path, it is possible to skip RTNL on insertion path. So the following race condition is possible: rtnl_lock() // no rtnl lock mutex_lock(&idrinfo->lock); // insert ERR_PTR(-EBUSY) mutex_unlock(&idrinfo->lock); tc_dump_action() rtnl_unlock() So we have to skip those temporary -EBUSY entries on dump path too. Reported-and-tested-by: syzbot+b47bc4f247856fb4d9e1@syzkaller.appspotmail.com Fixes: 0fedc63fadf0 ("net_sched: commit action insertions together") Cc: Vlad Buslov <vladbu@mellanox.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 9a9e774
debug_info.c
// SPDX-License-Identifier: GPL-2.0
/*
* This file exists solely to ensure debug information for some core
* data structures is included in the final image even for
* CONFIG_DEBUG_INFO_REDUCED. Please do not add actual code. However,
* adding appropriate #includes is fine.
*/
#include <stdarg.h>
#include <linux/cred.h>
#include <linux/crypto.h>
#include <linux/dcache.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/fscache-cache.h>
#include <linux/io.h>
#include <linux/kallsyms.h>
#include <linux/kernel.h>
#include <linux/kobject.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/net.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <net/addrconf.h>
#include <net/sock.h>
#include <net/tcp.h>
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