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Date:   Mon, 11 Feb 2019 13:20:42 -0800 (PST)
From:   David Miller <>
Subject: Re: [PATCH net] net/x25: do not hold the cpu too long in

From: Eric Dumazet <>
Date: Fri,  8 Feb 2019 12:41:05 -0800

> Due to quadratic behavior of x25_new_lci(), syzbot was able
> to trigger an rcu stall.
> Fix this by not blocking BH for the whole duration of
> the function, and inserting a reschedule point when possible.
> If we care enough, using a bitmap could get rid of the quadratic
> behavior.
> syzbot report :
> Signed-off-by: Eric Dumazet <>
> Reported-by: syzbot <>

Applied, thanks.

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