linux-kernel - Re: [syzbot] [xfs?] general protection fault in do_move

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Message-ID: <20250514184652.GP2023217@ZenIV>
Date: Wed, 14 May 2025 19:46:52 +0100
From: Al Viro <viro@...iv.linux.org.uk>
To: syzbot <syzbot+799d4cf78a7476483ba2@...kaller.appspotmail.com>
Cc: brauner@...nel.org, cem@...nel.org, jack@...e.cz,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-xfs@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [xfs?] general protection fault in do_move_mount (3)

On Wed, May 14, 2025 at 07:21:11PM +0100, Al Viro wrote:
> On Wed, May 14, 2025 at 11:13:08AM -0700, syzbot wrote:
> > Hello,
> > 
> > syzbot tried to test the proposed patch but the build/boot failed:
> > 
> > failed to checkout kernel repo git://git.kernel.org//pub/scm/linux/kernel/git/viro/vfs.git/fixes: failed to run ["git" "fetch" "--force" "8a6d8037a5deb2a9d5184f299f9adb60b0c0ae04" "fixes"]: exit status 128
> > fatal: remote error: access denied or repository not exported: //pub/scm/linux/kernel/git/viro/vfs.git
> 
> *blink*
> 
> #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git 8a6d8037a5deb2a9d5184f299f9adb60b0c0ae04
> 
> just in case the cut'n'paste damage (extra slash before 'pub') was not
> the only problem there...

... and that copied the bogus commit id from the error message.  Sigh...

Anyway, actual commit id is cfaefc95bfa7eb92dd837ea9fb38bc84e62d79b5 and
curl 'https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git/patch/?id=cfaefc95bfa7eb92dd837ea9fb38bc84e62d79b5'
definitely finds it, so commit is there.

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git cfaefc95bfa7eb92dd837ea9fb38bc84e62d79b5