On Fri, Jan 17, 2025 at 11:42:45AM -0500, reveliofuzzing wrote: > > > > However, the .config you provided does not match the bzImage. > > E.g. the e1000/e1000e driver is not built-in in your .config, > > so I get no networking, while it is enabled in your bzImage. > > This makes me worried that you have other changes in your .config. > > If you still have the exact config for this bzImage, could you please add > > it as an attachment? > Hi, we double-checked it but found the config shared above is the one we used. > CONFIG_E1000XXX is enabled in this config. You are right. For some reason it got compiled as a module when I did "make olddefconfig", with your config as base. Sorry about the confusion! > > > > > I've been using the syz-executor binary that you attached, since the C code > > pasted below does not compile, it seems like it has some unintended newlines. > > Perhaps you could add it as an attachment instead? > Here is the C program: > https://drive.google.com/file/d/1Uvhqrn-ntEYQT2PBiQjp0xaor-32WYHO/view?usp=sharing > Please let us know if you still can't compile it. We can take a look > at how Syzkaller > generates this C program and compiles it into the syz-executor binary. Still does not compile for me. It still appears to have some uninteded newlines. You probably copy pasted it from an editor instead of uploading it/sending it directly. One example is: line380: if (write(1, "executing program\n", sizeof("executing line381: program\n") - 1)) {} Strings in C are not allowed to span multiple lines without a backslash immediately before the newline, or by using string concatenation. > > > > > Also, you only talk about 6.12 kernel. Out of curiosity, have you managed to > > reproduce this bug on v6.13-rc kernels? Have you tried? > We haven't tried it yet, but we can do that in the next few days. Will keep you > posted. I got an off-list email that mentioned that you could reproduce on 6.13-rc7, thank you! Hopefully I will have some time to try to debug this sometime this week. Kind regards, Niklas
