linux-kernel - Re: [syzbot] KASAN: use-after-free Read in filp

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Message-ID: <000000000000fc2dfb05e0b7873b@google.com>
Date:   Sun, 05 Jun 2022 11:29:08 -0700
From:   syzbot <syzbot+47dd250f527cb7bebf24@...kaller.appspotmail.com>
To:     arve@...roid.com, asml.silence@...il.com, axboe@...nel.dk,
        brauner@...nel.org, gregkh@...uxfoundation.org, hdanton@...a.com,
        hridya@...gle.com, io-uring@...r.kernel.org,
        joel@...lfernandes.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, maco@...roid.com, surenb@...gle.com,
        syzkaller-bugs@...glegroups.com, tkjos@...roid.com,
        viro@...iv.linux.org.uk
Subject: Re: [syzbot] KASAN: use-after-free Read in filp_close

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+47dd250f527cb7bebf24@...kaller.appspotmail.com

Tested on:

commit:         6dda6985 fix the breakage in close_fd_get_file() calli..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.fd
kernel config:  https://syzkaller.appspot.com/x/.config?x=d4042ecb71632a26
dashboard link: https://syzkaller.appspot.com/bug?extid=47dd250f527cb7bebf24
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.