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Date:   Wed, 08 Jan 2020 12:43:46 -0800 (PST)
From:   David Miller <>
Subject: Re: [PATCH net] gtp: fix bad unlock balance in

From: Eric Dumazet <>
Date: Mon,  6 Jan 2020 06:45:37 -0800

> WARNING: bad unlock balance detected!
> 5.5.0-rc5-syzkaller #0 Not tainted
> -------------------------------------
> syz-executor921/9688 is trying to release lock (sk_lock-AF_INET6) at:
> [<ffffffff84bf8506>] gtp_encap_enable_socket+0x146/0x400 drivers/net/gtp.c:830
> but there are no more locks to release!
> Fixes: e198987e7dd7 ("gtp: fix suspicious RCU usage")
> Signed-off-by: Eric Dumazet <>
> Reported-by: syzbot <>
> Cc: Taehee Yoo <>

Applied and queued up for -stable, thanks Eric.

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