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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2019-01-05 23:45:26 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-07 14:40:27 -0500 |
| commit | 26d92e951fe0a44ee4aec157cabb65a818cc8151 (patch) | |
| tree | e0233475d3922cc26be5157b077f62b5b31e2031 /net/ipv6/udp.c | |
| parent | 7acf8b36a2ac6eb4fdc53c4d862570089e56c69e (diff) | |
| download | linux-26d92e951fe0a44ee4aec157cabb65a818cc8151.tar.bz2 | |
smc: move unhash as early as possible in smc_release()
In smc_release() we release smc->clcsock before unhash the smc
sock, but a parallel smc_diag_dump() may be still reading
smc->clcsock, therefore this could cause a use-after-free as
reported by syzbot.
Reported-and-tested-by: syzbot+fbd1e5476e4c94c7b34e@syzkaller.appspotmail.com
Fixes: 51f1de79ad8e ("net/smc: replace sock_put worker by socket refcounting")
Cc: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reported-by: syzbot+0bf2e01269f1274b4b03@syzkaller.appspotmail.com
Reported-by: syzbot+e3132895630f957306bc@syzkaller.appspotmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/udp.c')
0 files changed, 0 insertions, 0 deletions