linux-kernel - Re: fs/proc: Crash observed in next

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Message-ID: <20190417181455.GA2965@avx2>
Date:   Wed, 17 Apr 2019 21:14:55 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     shajit@...eaurora.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: fs/proc: Crash observed in next_tgid (fs/proc/base.c)

> Test case: Not some specific test case.

Write 2 programs: one forks, clones, and execs randomly (but not going
out of control), another does open("/proc"), getdents in a loop.
Don't use shell scripts or readdir as they only bring overhead.

Run getdents in a loop and several forkers, see what happens.