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| author | Eric Dumazet <edumazet@google.com> | 2016-01-08 09:35:51 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-31 11:28:59 -0800 |
| commit | 7caad825e2bfb40db53157000e9d15d324d07024 (patch) | |
| tree | c90c81b83df998e1126bb16268ccd129f1cb67fc /fs | |
| parent | 8534537d0b7914346c1d80dd374976b6bcbe508e (diff) | |
| download | linux-rt-7caad825e2bfb40db53157000e9d15d324d07024.tar.gz | |
ipv6: tcp: add rcu locking in tcp_v6_send_synack()
[ Upstream commit 3e4006f0b86a5ae5eb0e8215f9a9e1db24506977 ]
When first SYNACK is sent, we already hold rcu_read_lock(), but this
is not true if a SYNACK is retransmitted, as a timer (soft) interrupt
does not hold rcu_read_lock()
Fixes: 45f6fad84cc30 ("ipv6: add complete rcu protection around np->opt")
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions