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.