[LU-13956] crash - kernel NULL pointer deference when setting project id to 4294967295

• Type: Bug
• Resolution: Duplicate
• Priority: Major
• Affects Version/s: Lustre 2.12.5
• Environment: kernel: 3.10.0-1127.8.2.el7_lustre ; e2fsprogs:
• Assignee: Wang Shilong (Inactive)
• Reporter: Matt Rásó-Barnett (Inactive)

Description

Hello,
This is likely not very important as it's a contrived situation, but I am reliably able to crash an MDS running 2.12.5, by setting the project id on a file to '4294967295'.

I only stumbled on it, as I was curious what the upper limit of project IDs would be, so tried this value and get a MDS crash.

I attach the vmcore-dmesg.txt file - I can supply a vmcore file too if requested. Is this a kernel issue rather than a lustre issue?

Obviously this isn't a major issue, but I just thought I'd raise the bug report in case it's a simple fix.

Cheers,
Matt

Issue Links

• is duplicated by: LU-13845 Kernel crash on: lfs quota -u $(( (1<<32) -1))