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Date:   Thu, 7 Jan 2021 14:16:25 +0100
From:   Arnd Bergmann <>
To:     Russell King - ARM Linux admin <>
Cc:     Will Deacon <>,,
        Mark Rutland <>,
        "Theodore Ts'o" <>,
        "" <>,
        Andreas Dilger <>,
        Ext4 Developers List <>,
        Linux ARM <>
Subject: Re: Aarch64 EXT4FS inode checksum failures - seems to be weak memory
 ordering issues

On Thu, Jan 7, 2021 at 1:47 PM Russell King - ARM Linux admin
<> wrote:

> Arnd has found via bisecting gcc:
> 7e8c2bd54af ("[AArch64] fix unsafe access to deallocated stack")
> which seems to be
> That seems to suggest that gcc-5.0.0 is also affected.
> Looking at the changelog in Debian's gcc-8.3 packages, this doesn't
> feature, so it's not easy just to look at the changelogs to work out
> which versions are affected.

I checked the history to confirm that all gcc-5 releases (5.0.x is pre-release)
and later have the fix.

The gcc bugzilla mentions backports into gcc-linaro, but I do not see
them in my git history.


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