Re: [BUG] ufs: UBSAN shift-out-of-bounds in ufs_fill_super() at fs/ufs/super.c:1181

From: Al Viro

Date: Tue May 26 2026 - 18:50:15 EST


On Tue, May 26, 2026 at 02:47:30PM -0700, Farhad Alemi wrote:
> Hello Al and the linux-fsdevel team,
>
> I am reporting a UFS crash found by syzkaller. fs/ufs has no named
> M: entry in MAINTAINERS, so I'm routing by commit-history affinity.

Same comment as for your previous report, really. I'll resurrect
an old patch adding sanity checks to ufs_fill_super() (rejecting the
same things BSD does), will Cc you when it's posted. Might be a week
or so, though - plenty of shit on my platter at the moment.