Messages in this thread | | | Date | Mon, 18 Mar 2024 10:31:32 +0100 | From | Christian Brauner <> | Subject | Re: VFS: Close: file count is zero (use-after-free) |
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On Sun, Mar 17, 2024 at 07:57:28PM +0800, cheung wall wrote: > Hello, > > when using Healer to fuzz the latest Linux Kernel, the following crash > > was triggered on: > > > HEAD commit: e8f897f4afef0031fe618a8e94127a0934896aba (tag: v6.8) > > git tree: upstream > > console output: https://pastebin.com/raw/nWDbVZij
Generally it's not great to have ever more fuzzer generated reports outside of the official syzbot reports.
And fwiw, your link isn't even accessible.
> > kernel config: https://pastebin.com/raw/4m4ax5gq > > C reproducer: https://pastebin.com/raw/0ZSaae7K
That program seemingly to the mounted block device and your config has CONFIG_BLK_DEV_WRITE_MOUNTED=y causing corruption. So that bug is likely caused by that. Set CONFIG_BLK_DEV_WRITE_MOUNTED=n for your testbot.
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