linux-ext4 - [Bug 218601] Regression - dd if=/dev/zero of=/zero causes shift-out-of-bounds && NULL pointer dereference, address: 0000000000000003

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Message-ID: <bug-218601-13602-CAUF3Jj1MN@https.bugzilla.kernel.org/>
Date: Tue, 19 Mar 2024 15:08:03 +0000
From: bugzilla-daemon@...nel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 218601] Regression - dd if=/dev/zero of=/zero causes
 shift-out-of-bounds &&  NULL pointer dereference, address: 0000000000000003

https://bugzilla.kernel.org/show_bug.cgi?id=218601

--- Comment #7 from Keith Busch (kbusch@...nel.org) ---
(In reply to Colin from comment #6)
> I suspect this may actually be dead hardware but it's hard to tell.

I can't necessarily rule that out, however, based on the stack trace you
attached, this looks like a software bug. If you want to go further, I
recommend following Ted's suggestion and attempt to reproduce with a recent
upstream kernel. The most recent stable version as I write this is 6.8.1.

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