[bug report] erofs-utils: Compression with -Eall-fragments segfaults on 1.8.2

[Gao Xiang]

Hi David,

On 2024/10/12 04:22, David Michael wrote:
> Hi,
> 
> Version 1.8.2 has a reproducible segfault with "-E all-fragments"
> (testing on Fedora 40).  When compressing the install image, it
> consistently hangs on a firmware file:
> 
>> sudo dnf -y install erofs-utils
>> wget https://dl.fedoraproject.org/pub/fedora/linux/releases/40/Everything/x86_64/os/images/install.img
>> sudo mount install.img /mnt
>> sudo mkfs.erofs -z zstd -E all-fragments erofs.img /mnt
> 
> If you isolate just that firmware directory instead of the whole
> image, it will segfault:
> 
>> mkfs.erofs -z zstd -E all-fragments erofs.img /mnt/usr/lib/firmware/nvidia/ga102/gsp
> 
> It happens with all compressors I've tried, but adding "dedupe" works
> around it.  Is there any change I should test?  Let me know if you
> need additional information.

Thanks for the report, I will look into that.

Thanks,
Gao Xiang

> 
> Thanks.
> 
> David
> 
> Originally reported in: https://bugzilla.redhat.com/2318138