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
| File | Mode | Size |
|---|---|---|
| chips | ||
| devices | ||
| hyperbus | ||
| lpddr | ||
| maps | ||
| nand | ||
| parsers | ||
| spi-nor | ||
| tests | ||
| ubi | ||
| Kconfig | -rw-r--r-- | 7.6 KB |
| Makefile | -rw-r--r-- | 964 bytes |
| ftl.c | -rw-r--r-- | 30.6 KB |
| inftlcore.c | -rw-r--r-- | 23.8 KB |
| inftlmount.c | -rw-r--r-- | 21.8 KB |
| mtd_blkdevs.c | -rw-r--r-- | 13.5 KB |
| mtdblock.c | -rw-r--r-- | 8.7 KB |
| mtdblock_ro.c | -rw-r--r-- | 1.8 KB |
| mtdchar.c | -rw-r--r-- | 25.9 KB |
| mtdconcat.c | -rw-r--r-- | 20.7 KB |
| mtdcore.c | -rw-r--r-- | 58.8 KB |
| mtdcore.h | -rw-r--r-- | 934 bytes |
| mtdoops.c | -rw-r--r-- | 10.7 KB |
| mtdpart.c | -rw-r--r-- | 18.7 KB |
| mtdpstore.c | -rw-r--r-- | 14.5 KB |
| mtdsuper.c | -rw-r--r-- | 5.0 KB |
| mtdswap.c | -rw-r--r-- | 33.3 KB |
| nftlcore.c | -rw-r--r-- | 22.3 KB |
| nftlmount.c | -rw-r--r-- | 25.2 KB |
| rfd_ftl.c | -rw-r--r-- | 17.6 KB |
| sm_ftl.c | -rw-r--r-- | 30.0 KB |
| sm_ftl.h | -rw-r--r-- | 2.2 KB |
| ssfdc.c | -rw-r--r-- | 11.2 KB |
Computing file changes ...
